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Atlas of Human Body Ultrasound Scanning_ Methods and Diagnostic Applications ( PDFDrive ).pdf
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8  The Digestive System Organ Scanning

271

 

 

2.4.1\ Scanning Method

The patient should take a supine position. Probe is transversely placed at the level of the right subcostal, scanning slightly oblique to the posterosuperior. The patient can be in full and suspended inspiration to make the liver move down.

2.4.2\ Section Structure

Major structures: the porta hepatis, the right portal vein and left hepatic portal vein, the right hepatic duct, and the left hepatic duct. Ancillary areas—the right and left liver lobe, oblique section of the caudate lobe and quadrate lobe, infe-

rior vena cava, umbilical and sagittal segment of left portal vein, and left intrahepatic bile duct.

2.4.3\ Measuring Method and Normal

Measuring the left and right hepatic duct. Their normal value should be less than 0.3 cm. Right and left portal vein inner diameter should be less than 1.0 cm.

2.4.4\ Clinical Application Value

To diagnose the hepatic duct diseases such as expansion, narrowness, or space-occupying lesions.

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M. Zhang

 

 

2.5\ Longitudinal Scanning of the

Right Hepatic Duct from the

Right Intercostal Space

Fig. 8.36  Longitudinal scan of the right hepatic duct from right intercostal space

RL

RHV

RHD

RPV

IVC

8  The Digestive System Organ Scanning

273

 

 

2.5.1\ Scanning Method

The patient should be on fast for 8–12 hours. Right intercostal space scanning should be performed with patient in a left lateral decubitus or supine position.

2.5.2\ Section Structure

Major area: longitudinal section of the right hepatic biliary duct. The portal vein and right portal vein and oblique plane of the inferior vena cava.

2.5.3\ Measuring Method and Normal

Measuring inner diameter of the right hepatic biliary duct. Its normal value should be less than 0.3 cm.

2.5.4\ Clinical Application Value

To determine whether the right hepatic biliary duct has a dilation or space-occupying lesions in it or whether it is narrow. The common bile duct will enlarge with age.

274

2.6\ Longitudinal Scanning

of the Common Biliary Duct by the Right Subcostal and the Right Upper Abdomen

Fig. 8.37  longitudinal scan of the common biliary duct by the right subcostal and right upper abdomen

RL

CHD

RHD

RPV

RHV

M. Zhang

St

PH

CBD

PV

IVC