Добавил:
Sekretar
kiopkiopkiop18@yandex.ru
t.me/Prokururor I Вовсе не секретарь, но почту проверяю
Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз:
Предмет:
Файл:Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_585_Библиотеки_им_академика_М_И_Перельмана.pdf
X
- •Foreword I
- •Foreword II
- •Foreword III
- •Foreword IV
- •Contributors
- •Manuscripts Translation and Preparation
- •1.1 Introduction
- •Preface
- •Acknowledgments
- •Contents
- •Editors and Contributors
- •Deputy Editors
- •1.2.2.2 Gallbladder
- •1.2.2.3 Cystic Duct
- •1.2.2.4 Common Bile Duct
- •Supraduodenal Portion
- •Retroduodenal Portion
- •Pancreatic Portion
- •Intraduodenal Portion
- •1.3.2 Data Acquisition
- •1.3.2.2 Bile Duct Perfusion
- •1.3.2.3 Hepatic Artery Perfusion
- •1.3.2.4 Specimen Perfusion Fixation
- •1.4.1 Liver Dissection after Biliary Tract Perfusion
- •1.4.3.1 Image Registration After Bile Duct Perfusion
- •References
- •2.1 Introduction
- •2.2.1 Basic Principles
- •2.2.2.1 Methods
- •Preparation
- •Scanning Modalities
- •Contrast-Enhanced Scanning
- •Contrast-Enhanced Examination
- •Shaded Surface Display
- •Maximum Intensity Projection
- •Volume Rendering
- •2.3.1.1 MRI Devices
- •The Magnet
- •The Gradient System
- •The Radiofrequency System
- •Radiofrequency Coils
- •The Computer System
- •Other Auxiliary Equipment
- •2.3.2.1 MRI Preparations
- •Patient Preparation
- •2.3.2.2 Regular Scan Sequences
- •Single-Shot Turbo Spin-Echo Coronal Sequences
- •2D or 3D T2W1
- •Transaxial Single-Shot Turbo Spin-Echo Fat Suppression Sequences
- •Dynamic Enhancement Sequence
- •3D Volumetric Acquisitions
- •Advantages
- •Disadvantages
- •2D Continuous Thin-Slice Scanning
- •Advantages
- •Disadvantages
- •2D Thick-Slice Projection Imaging
- •Advantages
- •Disadvantages
- •References
- •3.1 Introduction
- •3.2 Congenital Biliary Diseases
- •3.2.1 Congenital Extrahepatic Biliary Atresia
- •3.2.1.1 CT Features
- •3.2.1.2 MRI Features
- •3.2.2 Biliary Dilatation
- •Type I
- •Type II
- •Type III
- •Type IV
- •Type V
- •3.2.2.2 Radiographic Features
- •CT Features
- •MRI Features
- •3.2.3 Bile Duct Hamartomas
- •3.2.3.1 CT Features
- •3.2.3.2 MRI Features
- •3.3 Common Gallbladder Diseases
- •3.3.1 Acute Cholecystitis
- •3.3.1.1 Radiographic Features
- •CT Features
- •MRI Features
- •Gangrenous Cholecystitis
- •Emphysematous Cholecystitis
- •Pediatric Cholecystitis
- •Pregnancy Cholecystitis
- •Gallbladder Empyema
- •Gallbladder Perforation
- •Hemorrhagic Cholecystitis
- •3.3.5 Other Gallbladder Tumors
- •3.3.5.3 Primary Gallbladder Lymphoma
- •3.3.5.4 Gallbladder Fibrosarcoma
- •3.3.6 Xanthogranulomatous Cholecystitis
- •3.3.6.1 CT Features
- •3.3.6.2 MRI Features
- •3.3.7 Gallbladder Adenomyomatosis
- •3.3.2 Chronic Cholecystitis
- •3.3.2.1 CT Features
- •3.3.2.2 MRI Features
- •3.3.3 Gallstones
- •3.3.3.1 CT Features
- •3.3.3.2 MRI Features
- •3.3.4 Gallbladder Cancer
- •3.3.4.1 CT Features
- •3.3.4.2 MRI Features
- •3.3.4.3 MRCP Features
- •3.3.7.1 CT Features
- •3.3.7.2 MRI Features
- •3.3.8.1 CT Features
- •3.3.9 Gallbladder Torsion
- •3.3.9.1 Type I
- •3.3.9.2 Type II
- •3.3.10.2 Gallbladder Sludge
- •3.3.11 Mirizzi’s Syndrome
- •3.3.11.1 CT Features
- •3.3.11.2 MRI Features
- •3.3.12 Post-Cholecystectomy Syndrome
- •3.4.1 Bile Duct Stones
- •CT Findings
- •MRI Findings
- •CT Findings
- •MRI Findings
- •3.4.2 Suppurative Cholangitis/Acute Cholangitis
- •3.4.3 Primary Sclerosing Cholangitis
- •3.4.3.1 CT Findings
- •3.4.3.2 MRI Findings
- •3.4.4 Secondary Sclerotic Cholangitis
- •3.4.5 Recurrent Pyogenic Cholangitis
- •3.4.5.1 CT Findings
- •3.4.6 Extrahepatic Cholangiocarcinoma
- •3.4.6.1 CT Findings
- •MRI Findings
- •MRCP Features
- •3.4.7 Intrahepatic Cholangiocarcinoma
- •3.4.7.3 Special Manifestations
- •3.4.8 Periampullary Carcinoma
- •3.4.8.1 Radiographic Findings
- •3.4.8.2 CT Findings
- •3.4.8.3 MRI Findings
- •3.4.9 Combined Hepatocellular-Cholangiocarcinoma
- •3.4.9.1 Imaging Findings
- •3.4.9.2 MRI Findings
- •3.5.1.1 Intrahepatic Biliary Dilatation
- •CT Findings
- •MRI Findings
- •3.5.1.2 Extrahepatic Bile Duct Dilatation
- •3.5.2.1 Hilar Obstruction
- •3.5.2.3 Pancreatic Obstruction
- •References
- •4.1 Introduction
- •4.1.2.1 CT Acquisition Protocols
- •4.1.2.2 Data Preprocessing
- •4.1.2.3 Medical Image Segmentation
- •4.1.2.4 3D Visualization
- •4.2.1 Image Registration
- •4.2.1.1 Template Matching Algorithm
- •4.2.1.2 Registration Steps
- •Step 1
- •Step 2
- •Step 3
- •4.2.2 Image Segmentation
- •Pixel Based Methods
- •Region Based Methods
- •Edge Based Methods
- •Model Based Methods
- •4.2.2.3 Serialized Segmentation Model
- •4.2.2.4 Adaptive Region Growing Algorithm
- •4.2.3 3D Reconstruction
- •References
- •5.1 Introduction
- •Fused Deposition Modeling
- •Stereolithography
- •Selected Laser Sintering
- •Direct Metal Laser Sintering
- •Laminated Object Manufacturing
- •Electron Beam Melting
- •Three-Dimensional Printing
- •High-Performance 3D Reconstruction Software
- •5.1.2.2 Medical Model Manufacturing
- •5.1.2.3 Tissue/Organ Regeneration
- •5.2.2 Digital Preparation
- •5.3.1.1 In Complex Liver Resection
- •5.3.1.2 In Liver Transplantation
- •5.3.2.1 In Cholangiocarcinoma Surgery
- •5.3.4 Prospects
- •References
- •6.1 Introduction
- •6.1.1 Virtual Anatomy
- •6.1.2 Surgical Simulation
- •Improved Doctor–Patient Relationship
- •Reduced Surgical Costs
- •Remote Intervention
- •6.2 Virtual Surgical Instruments
- •6.2.1 Geometric Modeling
- •6.2.2 Motion Modeling
- •6.2.3 Physical Modeling
- •6.3 Surgical Simulation
- •6.3.1 The Hardware System
- •6.3.2 Software System
- •6.3.2.1 FreeForm Modeling System
- •6.3.2.2 Open Graphics Library
- •6.3.2.3 Tactile Development Kit
- •6.4.4 Discussion
- •References
- •7.1 Introduction
- •References
- •8.1 Introduction
- •8.2 Duodenoscopy
- •8.3 Choledochoscopy
- •8.3.1 Preoperative Application
- •8.3.2 Intraoperative Application
- •8.3.3 Postoperative Application
- •8.4 Capsule Endoscopy
- •8.5 Laparoscope
- •8.6 Endoscopic Ultrasound
- •8.7 3D Visualization-Assisted Endoscopic Technology
- •References
- •9.1 Introduction
- •9.3.1.1 Arterial Phase
- •9.3.1.2 Portal Venous Phase
- •References
- •10.1 Introduction
- •10.2.1.2 Image Segmentation
- •10.2.1.3 3D Reconstruction
- •10.2.1.4 Surgical Simulation
- •Surgical Procedure
- •References
- •11.1 Introduction
- •11.2.2 Image Registration
- •References
- •12.1 Introduction
- •12.2.1 Imaging
- •12.2.2 Other Auxiliary Examinations
- •12.2.2.1 Biliary Manometry
- •12.2.2.2 Cholescintigraphy
- •12.2.2.3 Selective Celiac Arteriography
- •12.3.1 Collection Equipment
- •12.3.3 Plain Scan
- •12.3.4 Dynamic Enhanced CT Scan
- •12.4.1 Image Registration
- •12.6.1 Semiautomatic Liver Segmentation
- •Surgical Procedures
- •Surgical Procedures
- •12.10.2 Anatomical or Regular Hepatectomy Guided by 3D Visualization
- •12.10.2.1 Indications
- •12.10.2.2 Contraindications
- •12.10.2.4 Surgical Procedures
- •For Anatomical Right Hemihepatectomy
- •For Anatomical Left Hemihepatectomy
- •12.10.3.1 Contraindication
- •12.10.3.3 Surgical Procedures
- •Case 1
- •Case 2
- •12.10.4.1 Indications
- •12.10.4.2 Contraindication
- •12.10.4.4 Surgical Procedures
- •12.10.4.5 Attention
- •12.10.5.1 Indications
- •12.10.5.2 Contraindications
- •12.10.5.3 Surgical Procedures
- •12.10.5.4 Attention
- •12.10.6.1 Indications
- •12.10.6.2 Contraindications
- •12.10.6.3 Preoperative Imaging Evaluation
- •12.10.6.4 Surgical Procedures
- •12.10.6.5 Attention
- •12.10.7.1 Indications
- •12.10.7.2 Contraindications
- •12.10.7.3 Surgical procedures
- •12.10.7.4 Attention
- •12.10.8.1 Preoperative Evaluation
- •12.10.8.2 Preoperative Preparation
- •12.10.8.3 Contraindications
- •12.10.8.4 Operation Methods
- •12.10.8.5 Attention
- •12.10.9.1 Biliary Injury
- •Causes
- •Preventive Measures
- •12.10.9.2 Biliary Bleeding
- •12.10.9.3 Gastrointestinal Water Retention
- •Reasons
- •12.10.9.4 Biliary Leakage
- •12.11.1.1 Reasons
- •Main Reasons
- •Iatrogenic Biliary Tract Injury
- •Other Reasons
- •12.11.1.3 Surgical Procedures
- •Roux-en-Y Choledochojejunostomy
- •Hepatectomy
- •Intrahepatic Lithotripsy Through Sinus Tract or PTCS
- •Severe Symptomatic Patients
- •References
- •13.1 Introduction
- •13.3.1 Ultrasonography
- •13.3.2 Multi-Slice CT
- •13.3.5 Intraoperative Cholangiography
- •13.3.6 Radionuclide Hepatobiliary Scan
- •13.3.7 Digital Medicine Technology
- •Periampullary Tumor
- •Biliary Atresia
- •Acute Pancreatitis
- •Acute Cholecystitis
- •Hepatic Cyst
- •Hepatic Echinococcosis
- •Retroperitoneal Cystic Masses
- •13.4.2.1 Biliary Drainage
- •13.4.2.3 Liver Resection
- •13.4.2.4 Pancreaticoduodenectomy
- •13.4.2.5 Liver Transplantation
- •13.4.2.6 Laparoscopic Surgery
- •13.4.2.7 Reoperation
- •References
- •14.1 Introduction
- •14.1.1.1 Etiology
- •Anatomical Factors
- •Pathological Factors
- •Surgeon Factors
- •14.1.2.2 End-to-End Cholangiostomy
- •14.1.2.3 Choledochoduodenostomy
- •14.1.2.4 Roux-en-Y Cholangiojejunostomy
- •14.1.2.7 Liver Transplantation
- •14.2.2.1 Patient Information
- •14.2.2.2 Diagnosis
- •14.2.2.3 Complaint
- •14.2.2.4 History
- •14.2.2.5 Signs
- •14.2.2.6 Previous History
- •14.2.2.7 Laboratory Examination
- •Blood Routine
- •Coagulation Function
- •Liver Function
- •Renal Function
- •Tumor Markers
- •14.2.2.8 General Condition Assessment
- •Nutritional Status Evaluation
- •Liver Function Evaluation
- •Important Organ Function Evaluation
- •14.2.2.9 Imaging Evaluation
- •Evaluation by 3D Visualization
- •14.2.2.10 Surgical Planning
- •14.2.2.11 Surgical Procedures
- •Step 1
- •Step 2
- •Step 3
- •14.2.3.1 Patient Information
- •14.2.3.2 Diagnosis
- •14.2.3.3 Complaint
- •14.2.3.4 History
- •14.2.3.5 Signs
- •14.2.3.6 Previous History
- •14.2.3.7 Laboratory Examination
- •Blood Routine
- •Coagulation Function
- •Liver Function
- •Renal Function
- •Tumor Markers
- •14.2.3.8 General Condition Assessment
- •Nutritional Status Evaluation
- •Liver Function Evaluation
- •Important Organ Function Evaluation
- •14.2.3.9 Imaging Evaluation
- •Evaluation by 3D Visualization
- •14.2.3.10 Surgical Planning
- •14.2.3.11 Surgical Procedure
- •Step 1
- •Step 2
- •Step 3
- •References
- •15.1 Introduction
- •15.2 Clinical Stages
- •15.2.2 Surgical Strategy
- •Tis/T1a Stage
- •T1b Stage
- •Stage T2
- •Stage T3
- •Stage T4
- •15.2.2.2 Lymph Node Dissection Range
- •Stage Tis/T1a
- •Stage T1b
- •Stage T2
- •Stage T3
- •Stage T4
- •15.2.2.3 Extrahepatic Bile Duct Management
- •Stage Tis/T1a
- •Stage T1b
- •Stage T2
- •Stage T3
- •Stage T4
- •15.3.1 T Staging Assessment
- •15.3.1.1 Stage T2
- •MDCT
- •15.3.1.2 Stage T3
- •MDCT
- •15.3.1.3 Stage T4
- •15.3.3 Resectability Assessment
- •15.3.3.1 General Assessment
- •15.3.3.2 Liver Function Assessment
- •15.3.3.3 Virtual Surgery Assessment
- •15.4.1 Surgical Indications
- •15.4.2 Preoperative Preparation
- •15.4.2.3 Preoperative 3D Visualization Evaluation
- •15.4.3 Surgical Procedures
- •15.4.3.1 Resection Range
- •Radical Pancreaticoduodenectomy
- •15.4.4 Surgical Prognosis
- •References
- •16.1 Introduction
- •16.2.2.2 Imaging Diagnosis
- •16.2.2.3 Pathological Diagnosis
- •16.2.2.4 Clinical Staging
- •16.2.3.1 Preoperative Assessment
- •Liver Function Assessment
- •Resectability Assessment
- •3D Visualization Assessment
- •16.2.3.2 Surgical Approach
- •16.2.3.3 Controversial Point
- •Lymphadenectomy
- •Extended Hepatectomy
- •Liver Transplantation
- •Operative Prognosis
- •16.2.4 Multidisciplinary Team
- •16.2.5 Conclusion
- •Notes
- •16.3.4 Surgical Planning Guided by 3D Visualization
- •Type I
- •Type II
- •Type IIIa
- •Type IIIb
- •Type IVa
- •Type IVb
- •Type V
- •16.3.6.2 Typical Case
- •Case 1
- •Case 2
- •Case 3
- •Case 4
- •Case 5
- •16.3.6.4 Lymphadenectomy
- •16.3.6.6 Laparoscopic Exploration
- •16.3.6.7 Intraoperative Frozen Section Consultation
- •16.3.6.8 Liver Transplantation
- •Common Type
- •Type II Variation
- •Type III Variation
- •16.3.10 Other Comprehensive Treatment
- •16.3.11 Other Perioperative Management
- •16.3.11.2 Postoperative Follow-Up
- •References
- •17.1 Introduction
- •17.2.2.1 Perihilar Tumor
- •17.2.2.2 High Biliary Stricture
- •Hepatic Arterial Variation
- •Portal Vein Variations
- •Bile Duct Variations
- •17.3.2 Complex Pathophysiology
- •17.4.1.3 Preoperative Biliary Drainage
- •17.4.2.3 Cholangiojejunostomy
- •17.6 3D Visualization Imaging
- •Viscera Reconstruction
- •Lesion Reconstruction
- •Vascular Reconstruction
- •References

13 Digital Surgical Diagnosis andManagement ofBiliary Dilatation
317
13.3.6 Radionuclide Hepatobiliary Scan
Although radionuclide hepatobiliary imaging is useful in
the diagnosis of bile duct cysts, its clinical value is limited because the information provided is functional rather
than anatomical, which can only supplement cholangiography or stereoscopic imaging. Therefore, it can be used
only when the symptoms are similar and difficult to
identify.
13.3.7 Digital Medicine Technology
With the rapid development of digital medicine technology,
digitalization has become one of the developing directions
of surgical medicine, and its application in biliary surgery
has become more and more extensive. Three-dimensional
visualization technology utilizes modern photoconductive
technology and imaging technology to overcome the limitation that human eyes cannot see through or see directly.
Thus, the spatial structure of the liver and its vascular system can be viewed panoramically and stereoscopically. The
liver, surrounding organs, celiac vessels, and different vascular systems in the liver can be displayed three-dimensionally; with the aid of transparency modulation techniques
and local magnication of the liver, the shape and distribution of the diseased bile duct are clearly dened through
rotating stereoscopic observation of different angles and
directions. The extent of the affected bile duct, the degree of
dilation, as well as the relationship between the bile duct
and hepatic artery, hepatic vein, and portal vein are shown.
3D printing technology can also be used to reconstruct the
individual hepatobiliary system accurately, to determine
and measure the distribution of the diseased bile duct and its
spatial relationship with adjacent vascular structures.
Meanwhile, visual virtual simulated operation on the model
can help to make the operation plan, determine the best procedural path, guide the actual surgery, and improve accuracy
and safety.
13.4.1 The Dierential Diagnosis ofBiliary
Dilatation
13.4.1.1 Dierentiation ofDiseases
Characterized by Jaundice
Periampullary Tumor
Periampullary tumor predominantly occurs in the middleaged or above, with a relatively short course; jaundice is
aggravated progressively, often accompanied by itchy skin.
The patient’s condition deteriorates rapidly and symptoms
such as weight loss and anemia may occur; larger tumors
may be palpable on the surface of the body and felt hard and
nodular; imaging exams such as CT and MRI reveal a solid
mass in the distal ampulla of the common bile duct, while no
such imaging ndings are demonstrated in the case of BD.
Biliary Atresia
Biliary atresia is a rare disease that occurs in infants; symptoms usually appear between 1 and 2 weeks after birth.
Infants with biliary atresia develop cholestatic jaundice, dark
brown urine, light yellow feces, and later developing into
clay-colored stools, yellow staining of skin and sclera, and
cholestatic portal hypertension or ascites in the later stages
of the disease. B-ultrasound cannot detect the common bile
duct, absence of gallbladder or atrophied gallbladder only,
while BD is characterized by expansion of extrahepatic bile
duct.
13.4.1.2 Dierentiation ofDiseases
Characterized by Acute EpigastricPain
Acute Pancreatitis
Mostly in adults, and causes such as overeating, calculus, or
drinking may induce this disease; severe abdominal pain can
involve the left back and left shoulder; the biochemical
examination shows a signicant increase in blood and urine
amylase. B-ultrasound and CT show enlarged pancreas but
normal choledochus.
13.4 Dierential Diagnosis
andManagement ofBiliary Dilatation
The clinical differential diagnosis of this disease is of great
signicance. With the deepening understanding of the etiology and pathology of BD, clinical diagnosis of it has become
clearer. Targeted treatment can be carried out promptly, to
achieve better clinical efcacy.
Acute Cholecystitis
Mostly in adults, symptoms such as fever, pain in the right
upper abdomen, tenderness, and muscle tension are obvious.
Murphy’s sign is positive; real-time examination with
B-ultrasound can clearly differentiate.
Ascariasis ofBiliary Tract
Sudden pain in the right epigastric or epigastric cavity can be
alleviated or restored to normal after attack; no mass in the

318
J. Yang et al.
right epigastric or epigastric abdomen exists; ultrasonic
examination shows worm-like echo in the common bile duct
and mild dilatation in the common bile duct, while no wormlike echo in BD.
13.4.1.3 Dierentiation ofDiseases
Characterized by Abdominal Cystic
Mass
Hepatic Cyst
Normal liver function. Patients with polycystic liver disease
may be complicated with polycystic lesions of the kidney,
pancreas, or spleen. Imaging methods such as CT or
B-ultrasound can present the intrahepatic location of the cyst
and a normal extrahepatic bile duct.
Hepatic Echinococcosis
The patients had contact with animals such as dogs and
sheep in livestock areas. The cysts gradually increase;
B-ultrasound and CT show intrahepatic space-occupying
lesions and a normal extrahepatic common bile duct; eosinophils increased; Casoni test (hydatid intradermal test) positive rate reaches as high as 80%–95%.
Retroperitoneal Cystic Masses
Cystic teratoma or lymphangioma, for example, retroperitoneal cystic and BD can be differentiated basically by using
B-ultrasound or CT, and the possibility of BD can be
excluded by ERCP.Right hydronephrosis is not easily distinguished from BD by physical examination; however, the
incidence of hydronephrosis is more common on the right
side and the lumbar triangle is usually full, so B-ultrasound,
intravenous pyelography (IVP), or endoscopic retrograde
cholangiopancreatography (ERCP) can help determine right
hydronephrosis and BD.
13.4.2 Treatment ofBD
BD has a high canceration rate, which increases gradually
with age, specically, 0.7% under the age of 10years, 6.8%
between 10 and 20years, and 14.3% over 20years (Chijiiwa
and Koga 1993). Therefore, surgical treatment should be performed as soon as possible once BD is diagnosed regardless
of clinical symptoms.
ary drainage under the guidance of ultrasound should be
performed. The operation of biliary drainage can help to
alleviate critical conditions such as acute obstruction and
infectious shock caused by infection. After the patient’s
general condition is improved, resection of the diseased bile
duct and reconstruction of the biliary tract should be
performed.
13.4.2.2 Cholecystectomy, Resection
oftheDiseased Bile Duct + Roux-en-Y
Anastomosis ofBile Duct andJejunum
This procedure can completely eliminate the cyst, improve
drainage, signicantly reduce the complications of the surgery, and prevent canceration, and thus, it is generally considered suitable for the management of Todani type I, II, and
IVb. Because of repeated attacks of cholangitis in adults,
there is visible inammation around the cyst, and it is sometimes more challenging to remove the cyst entirely. In such
cases, intracapsular resection can be performed, as proposed
by Lily in 1978. Intracapsular resection means resection of
the remaining part of the posterior wall adjacent to the portal
vein, which was named the Lily procedure. The theoretical
basis of this procedure is that the damage of the cyst itself is
a potential canceration and the canceration only originates
from the mucosa. Therefore, the purpose of preventing canceration can be achieved as long as the mucosal layer is eliminated. Cholangioduodenostomy and cholangiojejunostomy
should be abandoned.
13.4.2.3 Liver Resection
BD involving intrahepatic bile duct should be treated with
drainage or lobectomy. The specic approach of liver resection depends on the distribution and extent of dilated hepatobiliary duct, the complication of hepatic lesion and
residual liver function. The residual functional liver volume
should be fully evaluated before liver resection. If the residual liver function is insufcient, the columnar dilated
hepatic duct and its drainage segments should be properly
preserved.
13.4.2.4 Pancreaticoduodenectomy
Pancreaticoduodenectomy is feasible when the lesions
are associated with carcinogenesis of the lower common
bile duct or obstructive jaundice caused by chronic
pancreatitis.
13.4.2.1 Biliary Drainage
For patients with acute suppurative inammation, severe
obstructive jaundice, and perforation of the biliary duct who
cannot tolerate complex surgery, it is recommended that
percutaneous transhepatic bile duct drainage and extra-bili-
13.4.2.5 Liver Transplantation
Liver transplantation is a practical and nal choice for diffuse BD with extensive lesions in bilateral hepatic lobes.
Type A2 BD (Caroli’s disease involving the whole liver),
complicated with severe hepatic brosis and portal hyper-

13 Digital Surgical Diagnosis andManagement ofBiliary Dilatation
319
tension, is feasible for liver transplantation. It is also feasible for types A, B, C, and D2 BD complicated with
intrahepatic or hilar cholangiocarcinoma which cannot be
cured by regular operation and has no extrahepatic metastasis. Some patients with Caroli’s disease even need liver and
kidney transplantation.
13.4.2.6 Laparoscopic Surgery
Since Farello rst applied laparoscopic treatment of this disease in 1995, many scholars have begun to explore laparoscopic techniques. Because of the magnifying effect provided
by laparoscopy, the operation is more precise, which is
conducive to radical resection and correction of hepatic bile
duct stricture. With the promotion of laparoscopic techniques
and the accumulation of surgical experience, this technology
has become one of the important techniques for the treatment
of this disease.
13.4.2.7 Reoperation
It is not uncommon for patients with bile duct cysts to be
reoperated. The leading cause of reoperation is the mismanagement of various complications or the discovery of
carcinogenesis. Removal of the duodenal or jejunal anastomosis of the original cyst, as well as the cystectomy and
reconstruction of the biliary tract, are the main methods of
reoperation. For those who have resected cyst, the critical
point is to solve the stricture of choledochojejunostomy. At
the time of reoperation, it should be noted that because the
recurrence causes the cyst and the surrounding tissue to
densely adhere, it is more difcult to separate and excise
the cyst. The anterior wall and the bilateral wall can be
excised, while the posterior wall can be removed only by
removing the intima; leaving an outer layer to prevent the
portal vein, hepatic artery, and even inferior vena cava from
being damaged. For those with particularly dense adhesions, part of the wall can remain, and this remaining part
may be damaged with iodine tincture, alcohol, or phenol
after scratching. The anastomotic site should be enlarged to
the left or right hepatic duct when there is too much resection near the hilar bile duct in the rst operation, which
results in the stricture of the anastomotic stoma. In order to
avoid biliary stricture and stone formation, the condition of
grade 2 or 3 bile duct in the liver should be fully explored.
Liver lobectomy should be performed when intrahepatic
lesions are found.
13.4.2.8 3D Visualization Technology toAssist
Surgical Planning
The majority of BD patients have experienced a long process of chronic cholangitis and chronic obstruction of the
biliary tract. Their biliary tract structure has been distorted,
deformed, dilated, or narrowed. Even adjacent liver tissues
are affected, and pathophysiological changes occur, which
makes the original complex intrahepatic conduit system
more challenging to identify. Additionally, it brings uncertainty to the accurate determination of the anatomical relationship between blood vessels and bile duct before an
operation. The 3D reconstruction images from CT and
MRCP have a single color for the biliary tract and can only
display different axial sections. It is impossible to simultaneously visualize the spatial relationship between the biliary system and the three sets of vascular systems in the
liver and the whole liver. They are not real three-dimensional images, making it difcult for the operator to make a
more accurate judgment on the variation of individual
anatomy.
In recent years, the rise of digital medical technology and
the clinical application of three-dimensional visualization of
human organs has brought new ideas for the diagnosis and
treatment of BD.Many domestic scholars use proprietary 3D
software to reconstruct, and assist in 3D reconstruction and
operation planning for BD. 3D models of individualized
liver, biliary tract, and blood vessel based on CT or MR data
can be used to determine the shape and movement of intrahepatic and extrahepatic bile ducts, and whether they are
accompanied by dilation, strictures, and stones; as well as to
observe the anatomical relationship of the bile duct, the surrounding portal vein and hepatic vein at any angle. The risk
of hemorrhage during operation can be avoided through
judgment and evaluation of pathological changes, preplanning, and treatment of possible complications such as
intrahepatic bile duct dilatation, stenosis, or other complex
biliary malformations and management of important peripheral vessels. Thus, reasonable, and quantitative surgical plans
can be formulated, and individualized, precise biliary surgery can be performed.
Fang Chihua’s research group has reconstructed the submillimeter CT data of 10 children with BD through the selfdeveloped proprietary 3D visualization system for
abdominal medical images and virtual surgical instrument
simulation. The 3D images can be rotated and observed at
will. A stereoscopic display of the shape and scope of the
huge bile duct cyst and its relationship with the surrounding
structures, as well as that of the stricture of the bile duct
outlet and the conuence of the biliary duct at the lower end
of the bile duct cyst, played a guiding role in the development of the surgical plan (Figs.13.7 and 13.8). It is believed
that in the near future, with the development and integration
of computer technology, physics, and medical equipment
technology, digital medicine will be further improved and
become one of the essential auxiliary diagnostic and therapeutic means of BD.

320
Fig. 13.7 In the MI-3DVS, the 3D image (liver and pancreas semitransparent substance) displays the size, shape, and scope of the cyst, as
well as the relation of the cyst with peripheral vascular space stereoscopically; the 3D image also shows the distal bile duct opening of a
bile duct cyst. With the guidance of this information, complete excision
of the cyst during the operation was avoided without damaging the biliopancreatic junction
J. Yang et al.
References
Babbitt DP, Starshak RJ, Clemett AR. Choledochal cyst: a con-
cept of etiology. Am J Roentgenol Radium Therapy, Nucl Med.
1973;119:57–62.
Bhavsar MS, Vora HB, Giriyappa VH.Choledochal cyst: a review of
literature. Saudi J Gastroenterol. 2012;18:230–6.
Chijiiwa K, Koga A.Surgical management and long-term follow-up of
patients with choledochal cysts. Am J Surg. 1993;165(1):238–43.
Dong J, Zhang X, Xia H, et al. Cystic dilation of bile duct: new
clinical classication and treatment strategy. Chin J Dig Sur.
2013;12(5):370–7.
Lee HK, Park SJ, Yi BH, Lee AL, Moon JH, Chang YW.Imaging fea-
tures of adult choledochal cysts: a pictorial review. Korean J Radiol.
2009a;10:71–80.
Lee HK, Park SJ, Yi BH, etal. Imaging features of adult choledochal
cysts: a pictorial review. J Korean J Radiol. 2009b;10(1):71–80.
Liu Y-B, Wang J-W, Devkota KR, et al. Congenital choledochal
cysts in adults: twenty-ve-year experience. J Chin Med J.
2007;120(16):1404–7.
Miyano T, Yamataka A, Li L.Congenital biliary dilatation. J Semin
Pediatr Surg. 2000;9(4):187–95.
Park DH, Kim MH, Lee SK, etal. Can MRCP replace the diagnostic
role or ERCP for patients with choledochal cysts? J Gastrointest
Endosc. 2005;62(3):360–6.
Soares KC, Arnaoutakis DJ, Kamel I, Rastegar N, Anders R, Maithel S,
etal. Choledochal cysts: presentation, clinical differentiation, and
management. J Am Coll Surg. 2014;219(6):1167–80.
Yu ZL, Zhang LJ, Fu JZ, etal. Anomalous pancreaticobiliary junction:
image analysis and treatment principles. J Hepatobiliary Pancreat
Dis Int. 2004;3(1):136–9.
Fig. 13.8 Intraoperative exploration conrmed the presence of stricture in the distal bile duct opening of the choledochal cyst (on the right
biliary duct probe)

3D Visual Diagnosis andManagement
ofBile Duct Injuries
NingZeng, SilveZeng, JianWang, JiayanYan,
andChihuaFang
14
14.1 Introduction
Bile duct injuries refer to any damages to the original structure of the biliary system and abdominal changes in the ow
of bile caused by traumatic or iatrogenic factors. Iatrogenic
bile duct injuries are attributed to iatrogenic factors such as
surgery or invasive diagnosis and treatment. Traumatic biliary
strictures refer to the stricture or occlusion of bile ducts due to
the injury of the biliary system, which is mainly divided into
primary biliary stricture and secondary biliary stricture. The
critical cause of benign stricture of the bile duct is inammatory reaction and excessive collagen synthesis caused by bile
leakage into the wall of the bile duct after bile duct injury.
Typical clinical manifestations are obstructive jaundice, bile
leakage, or biliary peritonitis. The management of bile duct
injuries remains one of the most complex problems in abdominal surgery. At present, the diagnosis of bile duct injuries is
assisted by cholangiography, ultrasound, and CT. Surgical
repair and biliary drainage are the main methods for the treatment of bile duct injuries, but partial hepatectomy or liver
transplantation is perhaps the most appropriate treatment for
patients with partial or complete liver atrophy.
14.1.1 Etiology andClassication of
Bile Duct Injury
14.1.1.1 Etiology
Anatomical Factors
Variation of Cystic Duct Typical anatomy of the cystic
duct accounts for only 65%. The mode of conuence between
N. Zeng · S. Zeng · C. Fang (*)
Zhujiang Hospital, Southern Medical University,
Guangzhou, China
J. Wang · J. Yan
Renji Hospital, School of Medicine, Shanghai Jiaotong University,
Shanghai, China
the cystic duct and the common hepatic duct may be angular,
parallel, and spiral. Generally, there are two types of variations, including variation in the course of the cystic duct
(The cystic duct is parallel to the common hepatic duct or
right hepatic duct) and variations of conuence (The cystic
duct obliquely crosses the front or rear of the common bile
duct and converges into the left wall of the common bile
duct; the cystic duct conuences into the back of the common hepatic duct, with high opening of the cystic duct in the
right hepatic duct, the left hepatic duct, or the lower segment
of the common bile duct; the cystic duct ows into the right
common bile duct after encircling the common bile duct for
one turn). In case of unusual type of cystic duct variation,
bile duct injuries are easy to occur in an emergency
operation.
Variation of Cystic Artery Generally, cystic artery is in the
cystic triangle, arising from the right hepatic artery and then
coursing to the gallbladder. About 20% of the cystic artery
variations originate from arteries other than the right hepatic
artery. Variations of bilateral cystic arteries and variations in
the origin of gallbladder are common.
Variation of Right Hepatic Artery Caterpillar hump right
hepatic artery, right hepatic artery, or gallbladder artery ows
to the gallbladder before passing through the common bile
duct.
Anatomical Variant oftheGallbladder
• Congenital absence of gallbladder.
• Bilateral gallbladder.
• Intrahepatic gallbladder.
• Transverse gallbladder.
• Left gallbladder.
• Inversion of the gallbladder fundus (Phrygian cap).
• Gallbladder in the left hepatic falciform ligament.
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
C. Fang, W. Y. Lau (eds.), Biliary Tract Surgery, https://doi.org/10.1007/978-981-33-6769-2_14
321

322
N. Zeng et al.
Pathological Factors
Stone incarceration in the neck of the gallbladder and gallbladder atrophy are high-risk factors for transection and
defect of bile ducts caused by laparoscopic cholecystectomy
(LC). Stones in the junction of the cystic duct and common
hepatic duct, as well as right hepatic atrophy in cirrhosis can
cause anomaly in bile duct movement and it can easily lead
to bile duct injuries; local adhesion and dense inltration
caused by gastric neoplasms can alter the normal anatomy of
the bile duct, and even that of the hepatic artery and portal
vein. Forced transection, resection, or improper operation
can easily damage the bile duct.
Surgeon Factors
In a large-scale study of 125,000 patients undergoing laparoscopic cholecystectomy, the incidence of biliary tract injury
was 0.85%, which was three to four times higher than that of
conventional laparotomy. Therefore, LC has always been
listed as an important factor of biliary injury. Besides, factors
such as the improper selection of incision, insufcient relaxation of anesthetic, inadequate timing of operation, surgeon’s
incomplete knowledge of anatomical structures, lack of
understanding of biliary tract variation, nonstandard operation, and rough surgical techniques would lead to clamping,
excessive traction, and excessive dissection of common bile
duct, and in blood pools. During the bile duct exploration,
the mucous membrane of the lower part of the bile duct or
papilla would be damaged due to rough operation; the placement of excessively thick T-tube and tight suture would also
affect the blood supply of the common bile duct wall.
In addition, the ischemic biliary disease caused by biliary
dysfunction is another factor of bile duct injury and traumatic biliary stricture, which is elaborated in Chap. 9.
14.1.1.2 Classication ofBile Duct Injury
At present, there is still a lack of comprehensive coverage in
the international community, which can accurately summarize all the pathological characteristics of the various types
of bile duct injuries and provide guidance for the prevention,
treatment, and prognosis evaluation of various types of bile
duct injuries.
The commonly used international classication methods
for bile duct injury include Bismuth-Corlette classication,
Strasburg modication, and Stewart-Way classication
(Mercado and Dominguez 2011). Some classications are
mainly established in the period of cholecystectomy, some
by biliary stenosis, and others by biliary tract injuries caused
by laparoscopic cholecystectomy. Therefore, there is no unied classication of bile duct injury at present.
Bismuth-Corlette Classication
Type I Low common hepatic duct (CHD) stricture, with a
length of the CHD stump of >2cm.
Type II Middle stricture: length of CHD <2cm.
Type III Hilar stricture, without CHD available but pre-
served conuence.
Type IV Hilar stricture, with involvement of conuence
and loss of communication between right and left hepatic
ducts.
Type V Combined CHD and aberrant right hepatic duct
(RHD) injury, separating from the distal common bile duct
(CBD) (Renz etal. 2017).
Strasberg Classication
Type A Bile leak from the cystic duct or liver bed without
further injury.
Type B Partial Occlusion of the biliary tree, commonly
aberrant right hepatic duct(s).
Type C Bile leak from aberrant right hepatic duct(s) that
is not communicating with the CBD.
Type D Lateral injury of biliary system, without loss of
continuity.
Type E1 Injury >2cm from the conuence.
Type E2 Injury <2cm from the conuence.
Type E3 Injury at the conuence; conuence intact.
Type E4 Destruction of the biliary conuence.
Type E5 Injury to the aberrant right hepatic duct or with
concomitant stricture of the common hepatic duct (Strasberg
etal. 1995).
Lau Classication
Academician Wan-Yee and Junxiong (2008) introduced a
simple classication method for iatrogenic bile duct injury:
Type 1 Bile leaks from cystic duct stump or small ducts
in the liver bed.
Type 2 Partial CBD/CHD wall injuries with or without
tissue loss.
Type 3 CBD/CHD transection with or without tissue loss.
Type 4 Left/right hepatic duct or sectoral duct injuries
with or without tissue loss.
Type 5 Bile duct injury complicated with vascular
injuries.
14.1.2 Repair ofBile Duct Injury
14.1.2.1 Repair oftheBile Duct InSitu
The intraoperatively discovered small laceration or avulsion
of the bile duct wall can only be repaired by direct suture at
the injured place, but the indication of this method is relatively strict. Normally, repair of the bile duct in situ can be
considered when the defect of bile duct wall is <0.5cm and
the following four conditions are required:
• The anatomical structure of intra- and extrahepatic bile
duct is normal, and no pathological changes can be found.

14 3D Visual Diagnosis andManagement ofBile Duct Injuries
323
• The diameter of the injured bile duct is >0.5cm.
• No tension when repairing or stitching.
• The diameter of the bile duct cavity has not changed obviously after repair and suture.
Therefore, this method is only suitable for patients with
small biliary tract trauma and a better prognosis.
14.1.2.2 End-to-End Cholangiostomy
Theoretically, this method is most consistent with the physiological anatomy of the human body, which not only retains
the function of the biliary sphincter but also helps prevent
retrograde biliary tract infection. However, practical studies
have shown that after the resection of bile duct injury or stenosis site, the difference of defect or diameter of the entire
bile duct and the distance between the two fractures often
make anastomosis difcult and increase the incidence of biliary leakage. Moreover, the rate of reoperation for patients
undergoing this procedure is as high as 16%–20%.
14.1.2.3 Choledochoduodenostomy
It is safe and easy to perform direct anastomosis of the site of
bile duct injury with duodenum by this method. However, it
is difcult to avoid postoperative biliary reux and recurrent
retrograde cholangitis; moreover, the diameter of the injured
bile duct is often thin and the anastomotic stoma is prone to
narrow. When stricture of high bile duct occurs, the chyme
often reuxes to the intrahepatic bile duct after choledochoduodenostomy, which easily results in sclerosing cholangitis. Therefore, this method is not widely used in the clinic.
However, Aikawa et al. (2010) have made progress in the
anti-reux effect compared with end-to-side choledochoduodenal anastomosis by improving the method and using endto- side choledochoduodenal anastomosis to encapsulate the
distal end of the articial bile duct into the serosa layer of the
duodenum.
14.1.2.4 Roux-en-Y Cholangiojejunostomy
The jejunum is cut off, and the distal segment is lifted to
anastomose with the bile duct. The proximal end of the jejunum is anastomosed end to side with the lifted jejunum. An
open jejunum can be designed in this method as a mechanism to prevent the reux of intestinal contents, which is the
most common method of bile duct reconstruction after bile
duct injury or resection of biliary and pancreatic tumors.
However, research and clinical follow-up showed that the
incidence of reux cholangitis is still high due to the loss of
function of Oddi sphincter. Moreover, with the prolongation
of the jejunal loop, the peristalsis of the intestine is relatively
weakened, the pressure of the intestine is increased, and the
number of bacteria increases signicantly. Anaerobes are the
dominant bacteria, which increase the incidence of countercurrent cholangitis and choledochostomy infection and also
increase the risk of cholangiocarcinoma. Also, the incidence
of gastrointestinal endocrine dysfunction, increased gastric
acid, and duodenal ulcers will increase accordingly.
14.1.2.5 Biliary Duct Repair withPedicled
Autologous Biovalve
Due to complications such as bile leakage and reux in the
direct repair of the bile duct or intestinal anastomosis of the
bile duct, clinicians have begun to use autologous tissue for
bile duct repairs, such as pedicled gastric wall valve, gastric
serosal valve, and umbilical vein of the hepatic round ligament. Although these autologous tissues have the advantages
of proximity to the bile duct, convenient material taking, and
easy trimming and shaping: this method can easily lead to
brosis not only because of the difference between tissue
structure and bile duct, but because it does not have the
unique morphological structure of the biliary epithelium,
such as regulatory vesicles and microvilli, and the alkaline
environment in the bile duct is different from the growth
environment of the autogenous tissue. Reasons also include
the difculty of bile duct repair surgery as well as postoperative near- and long-term complications.
14.1.2.6 Patch Repair ofBile Duct Defect
Under normal physiological conditions, the bile duct epithelium is surrounded by highly cytotoxic bile acids and pathogens, while the monolayer columnar epithelium protects it
from injury. As a substitute for the biliary tract system, articial bile duct should possess not only excellent mechanical
properties and biocompatibility, but also possess high
strength joint ability as well as stability, elasticity, and corrosion resistance. Its exibility should be similar to that of bile
duct tissue structure and have a surface roughness favorable
for cell adhesion and growth. Also, articial bile ducts should
also minimize the possibility of biodegradation. Aikawa
etal. (2010) have used polycaprolactone, polylactic acid, and
polyglycolic acid ber to construct articial bile duct, reconstruct bile duct by the bypass, and compare the repair effect
of transplanted bone marrow before and after cell transplantation. Aikawa concluded that the addition of bone marrow
stem cells had no apparent effect on the results of the experiment, and it was suggested that the articial bile duct material could be applied in the clinic. Based on the above factors,
the clinical application of articial bile duct is rare, and its
therapeutic effect needs further research and conrmation.
However, recently, there are some reports on the successful
restoration of the narrow bile duct with biodegradable synthetic materials.
14.1.2.7 Liver Transplantation
The incidence of portal hypertension and biliary cirrhosis
after bile duct injury is 8%. Some foreign scholars have
found that hepatic brosis is related to the delayed treatment

324
N. Zeng et al.
of biliary stricture through liver biopsy. Therefore, liver
transplantation may be the only way to treat biliary system
injury when cirrhosis and portal hypertension are caused by
biliary system injury. However, intrahepatic bile duct stenosis is a common complication after liver transplantation,
which is an important factor hindering the improvement of
liver transplantation efcacy. Therefore, the treatment of bile
duct injury through liver transplantation needs further clinical exploration.
14.2 Application of3D Visualization
inBiliary Tract Injury
The hepatobiliary system is the only way for bile to descend.
Once damaged, it will affect liver function and endanger life.
Because of the particularity of extrahepatic biliary system
anatomical variation and the new problems brought about by
the development of laparoscopic technology, iatrogenic bile
duct injury is still an unavoidable technical problem in hepatobiliary surgery. Though hepatobiliary surgery has been
developing for more than a hundred years, the incidence of
bile duct injury is reported as 0.5–0.8% after laparoscopic
cholecystectomy (Bektas et al. 2011). Also, trauma, war
injury, and pathological injury caused by tumor can lead to
severe bile duct injury. The repair of hepatic biliary system
injury is still one of the most challenging in hepatobiliary
surgery. Mastering the type, and location of bile duct injury
before the operation is of great importance in the treatment
of biliary tract injury. Abdominal ultrasonography has a high
diagnostic rate for suspected bile duct injury. Up to 10%–
14% of patients produce intrafossa uid after cholecystectomy can produce a small amount of subhepatic effusion,
while only 10% of patients with biliary obstruction will have
bile duct dilatation early after an operation (Frilling et al.
2004), therefore, the results of ultrasonography should be
carefully interpreted. The exact diagnosis needs the support
of ERCP, PTC, or MRCP.PTC is an invasive diagnostic technique with the risk of bleeding, secondary infection, and
puncture failure. PTC is often difcult to perform in the case
of recent bile duct injury with bile leakage without apparent
dilation of the bile duct. In patients with complete transection or stricture of the bile duct; with ERCP it is difcult to
show the structure of the injured proximal bile duct tree. As
a noninvasive biliary imaging technique, MRC can display
the anatomical structure of various types of bile duct tree in
many directions. It can provide accurate information about
the location, range, and extent of bile duct stricture and the
degree of proximal bile duct dilatation; so as to provide a
reliable basis for the design of the surgical plan. However, it
cannot be used to observe the adjacent relationship of the
injured bile duct from multi-directions and multi-angles.
Three-dimensional visualization technology can be used to
acquire submillimeter thin-layer anatomical image data of
the living human body, by advanced MSCT acquisition; and
use of computer image processing technology to transform
2D to 3D, which can be used to guide clinical practice. The
location of biliary tract injury and its relationship to its surroundings can be observed from multiple directions and
angles. Preoperative planning and surgical guidance can be
carried out to minimize the reinjury of the biliary tract in
patients.
14.2.1 Application of3D Visualization
Technique inBiliary Tract Injury
(Case1)
A 40-year-old man was admitted postoperatively for conversion from laparoscopic cholecystectomy to open surgery
nearly 4 months ago in another hospital. The patient reported
that he received conversion from laparoscopic cholecystectomy to open surgery on June 24, 2013. Postoperative jaundice was progressively aggravated. The TBil was 203.0
μmol/L, and DBil was 119.3 μmol/L; after admission, bilirubin was still progressively elevated; the upper abdomen
enhanced CT was performed and “after cholecystectomy,
intrahepatic bile duct dilatation was more obvious than
before, considering the possibility of common hepatic duct
stenosis.” Diagnosis: obstructive jaundice, portal hypertension, splenectomy, posthepatitic cirrhosis, chronic viral hepatitis B (active phase), conversion from laparoscopic
cholecystectomy to open surgery, anemia. On July 10, TBil
was 571 μmol/L, and DBil was 334 μmol/L.The bilirubin
was signicantly decreased after percutaneous transhepatic
right lobe biliary drainage under local anesthesia on July 10,
2013, and discharged from hospital on July 16, 2013. After
discharge, the patient had no apparent discomfort, no chills,
fever, no abdominal pain, no abdominal distension, no nausea, vomiting, no chest tightness, no palpitations, no difculty breathing, no black spots, clay-like stools, etc. PTCD
drained 500 to 800 ml of golden yellow bile daily. He
returned to the hospital on August 25, 2013, for review.
Jaundice had subsided, and the symptoms improved slightly.
On August 26, “TBil was 28.1 μmol/L, DBil was 22.4
μmol/L.” On August 27, enhanced CT of the upper abdomen
showed that “after cholecystectomy + PTCD, the extent of
intrahepatic bile duct dilatation did not change signicantly
compared with the previous CT lms on 2013-07-16; effusion and pneumatosis in cholecystectomy area had decreased;
right pleural effusion and a small amount of ascites were
basically absorbed.”
After 3 months of PTCD drainage, the yellow scleral
staining subsided. Specialist examination: at abdomen, no
exposure of abdominal wall vein, oblique operation scar
about 8cm along the right costal margin, an operation scar of

14 3D Visual Diagnosis andManagement ofBile Duct Injuries
about 0.5cm under the xiphoid process, a scar of about 1cm
under the navel, and a scar of about 1cm under the right midabdomen; no peristaltic wave and no abnormal pulsation;
soft abdominal wall; no abdominal tenderness, no rebound
pain, no palpable abdominal mass. The subcostal parts of
liver, spleen, and gallbladder were not touched. The liver
neck reux sign was negative, and the upper boundary of
liver turbidity was located in the fth intercostal area of the
middle line of the right clavicle. The bowel sounds were
about 4/min. A PTCD drainage tube can be seen in the right
upper abdomen (Fig.14.1). Preliminary diagnosis: (a) The
laparoscopic operation conversion to open cholecystectomy;
(b) Portal hypertension, splenomegaly; (c) Posthepatitic cirrhosis; (d) Hepatitis B virus carrier; (e) Right hepatic puncture after biliary drainage (Figs.14.2, 14.3, 14.4, 14.5, 14.6,
14.7, 14.8, 14.9, 14.10, 14.11, 14.12, 14.13, 14.14, 14.15,
14.16, 14.17, 14.18 and 14.19).
325
Fig. 14.3 CT scan obtained during arterial phase
Fig. 14.1 Broken end of bile duct injury found by MRCP
Fig. 14.2 Dilated bile duct and PTCD tube displayed by Plain CT scan
Fig. 14.4 CT scan obtained during portal venous phase

326
N. Zeng et al.
Fig. 14.5 Biliary tract angiography via a PTCD drainage tube
Fig. 14.6 The 3D reconstructed model showing the plane of the dilated
bile duct
Fig. 14.7 The front view of the 3D reconstructed model
Fig. 14.8 The back view of the 3D reconstructed model
Соседние файлы в папке Библиотека им академика М.И. Перельмана
