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Column 2: Establishment and Activities of the International Society
for Fluorescence Guided Surgery (ISFGS)
Part III Intraoperative Fluorescence Imaging [Practice] – Imaging of Cancer
14 Liver Cancer (Primary Liver Cancer, Metastatic Liver Cancer) . . . . . . . . . . . . . . 93
Yoshiharu Kono, Takeaki Ishizawa, and Kiyoshi Hasegawa
15 Lung Cancer (Marking the Tumor Site) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Toyofumi Fengshi Chen-Yoshikawa
16 Gastric Cancer (Primary Tumor, Peritoneal Dissemination) . . . . . . . . . . . . . . . . . 111
Tsuyoshi Takahashi, Yukinori Kurokawa, Makoto Yamasaki, Hidetoshi Eguchi,
and Yuichiro Doki
17 Brain Tumor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Toshihiko Kuroiwa
18 Bladder Cancer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Keiji Inoue, Hideo Fukuhara, and Shinkuro Yamamoto
Part IV Intraoperative Fluorescence Imaging [Practice] –
Imaging of Lymph Nodes and Lymph Vessels
Contents
19 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Masashi Yoshida
20 Identification of Sentinel Lymph Nodes in Breast Cancer Surgery . . . . . . . . . . . . 139
Manami Tada and Tomoharu Sugie
21 Identification of Sentinel Lymph Nodes in Gastric Cancer Surgery . . . . . . . . . . . 145
Shinichi Kinami
22 Identification of Sentinel Lymph Nodes in Colorectal Cancer Surgery. . . . . . . . . 153
Hironori Odaira, Masashi Yoshida, and Yutaka Suzuki
23 Identification of Sentinel Lymph Nodes in Gynecologic Surgery . . . . . . . . . . . . . . 159
Kensuke Sakai, Wataru Yamagami, Nobuyuki Susumu, and Daisuke Aoki
24 Lymphography and Evaluation of Lymphedema . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Takumi Yamamoto
Part V Intraoperative Fluorescence Imaging [Practice] – Imaging of Anatomical
Structures
25 Imaging of the Bile Ducts (Fluorescence Cholangiography) . . . . . . . . . . . . . . . . . . 175
Kazuhiro Matsuda, Takeshi Aoki, and Tomokazu Kusano
26 Hepatic Segmentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Takeshi Aoki and Kazuhiro Matsuda
27 Lung Segmentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .195
Yasuo Sekine
28 Visualization of the Ureter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Toshihiko Nishidate, Koichi Okuya, Kenji Okita, and Ichiro Takemasa
29 Imaging of the Parathyroid Gland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211
Akihiro Nakajo and Yoshiaki Shinden

Contents
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Part VI Intraoperative Fluorescence Imaging in Practice [Development]
30 Development of Novel Fluorescent Probes: Rapid Intraoperative
Visualization of Microcarcinoma by Local Application of
Chemical Fluorescence Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .219
Yasuteru Urano
31 Development of a New Imaging System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Satoru Seo and Etsuro Hatano
32 Development of a New Operating Room That Integrates Imaging
Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Shunsuke Tsuzuki, Jun Okamoto, Manabu Tamura, Ken Masamune,
and Yoshihiro Muragaki
33 Therapeutic Applications: Photodynamic Therapy Using
Porphyrin Compounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Takeomi Hamada and Atsushi Nanashima
34 Application to Therapy (2): Photoimmunotherapy Using a Near- Infrared
Fluorescent Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253
Yutaka Tamura, Akiko Suganami, and Yoshiharu Okamoto
Afterword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Editors and Contributors
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Supervised
Japanese Society for Fluorescence Guided Surgery, Tokyo, Japan
Editor
Takeaki Ishizawa Department of Hepatobiliary-Pancreatic Surgery, Graduate School of
Medicine, Osaka Metropolitan University, Osaka, Japan
Japanese Society for Fluorescence Guided Surgery (JSFGS), Tokyo, Japan
Contributors
DaisukeAoki Department of Obstetrics & Gynecology, Keio University School of Medicine,
Shinjuku-ku, Tokyo, Japan
TakeshiAoki Division of Gastroenterological and General Surgery, Department of Surgery,
School of Medicine, Showa University, Tokyo, Japan
TohruAsai Department of Cardiovascular Surgery, Juntendo University, Bunkyo-ku, Tokyo,
Japan
Hironobu Baba Department of Gastrointestinal Surgery, Tokyo Medical and Dental
University, Bunkyo-ku, Tokyo, Japan
Toyofumi Fengshi Chen-Yoshikawa Department of Thoracic Surgery, Nagoya University
Graduate School of Medicine, Nagoya, Aichi, Japan
Yuichiro Doki
School of Medicine, Suita, Osaka, Japan
Hidetoshi Eguchi Department of Gastroenterological Surgery, Osaka University Graduate
School of Medicine, Suita, Osaka, Japan
HideoFukuhara Department of Urology, Kochi Medical School, Nankoku-shi, Kochi, Japan
Center for Photodynamic Medicine, Kochi Medical School, Nankoku-shi, Kochi, Japan
Takeomi Hamada Division of Hepato-biliary-pancreas Surgery, Department of Surgery,
Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
Kazuhiro Hanazaki Department of Surgery, Kochi Medical School, Kochi University,
Nankoku, Kochi, Japan
Center for Photodynamic Medicine, Kochi Medical School, Nankoku, Kochi, Japan
Department of Gastroenterological Surgery, Osaka University Graduate
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HiroHasegawa Department of Colorectal Surgery, National Cancer Center Hospital East,
Kashiwa, Chiba, Japan
KiyoshiHasegawa Department of Hepatobiliary and Pancreatic Surgery, Articial Organ and
Transplantation Surgery, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Etsuro Hatano Department of Surgery, Graduate School of Medicine, Kyoto University,
Sakyo-ku, Kyoto, Japan
Itaru Higuchi Department of Gastroenterological Surgery, Tokai University School of
Medicine, Isehara, Kanagawa, Japan
KeijiInoue Department of Urology, Kochi Medical School, Nankoku-shi, Kochi, Japan
Center for Photodynamic Medicine, Kochi Medical School, Nankoku-shi, Kochi, Japan
Masaaki Ito Department of Colorectal Surgery, National Cancer Center Hospital East,
Kashiwa, Chiba, Japan
MasakiKaibori Department of Surgery, Kansai Medical University, Hirakata, Osaka, Japan
ShinichiKinami Department of Surgical Oncology, Kanazawa Medical University, Kahoku,
Ishikawa, Japan
Yusuke Kinugasa Department of Gastrointestinal Surgery, Tokyo Medical and Dental
University, Bunkyo-ku, Tokyo, Japan
Editors and Contributors
KazuoKishi Department of Plastic and Reconstructive Surgery, Keio University School of
Medicine, Shinjuku, Tokyo, Japan
NorihiroKokudo National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan
Japanese Society for Fluorescence Guided Surgery (JSFGS), Tokyo, Japan
YoshiharuKono Department of Hepatobiliary and Pancreatic Surgery, Articial Organ and
Transplantation Surgery, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
Kazuo Koyanagi Department of Gastroenterological Surgery, Tokai University School of
Medicine, Isehara, Kanagawa, Japan
Koshi Kumagai Division of Gastric Surgery, Department of Gastroenterological Surgery,
The Cancer Institute Hospital of JFCR, Koto, Tokyo, Japan
ToshihikoKuroiwa Tesseikai Neurosurgical Hospital, Shijonawate, Osaka, Japan
YukinoriKurokawa Department of Gastroenterological Surgery, Osaka University Graduate
School of Medicine, Suita, Osaka, Japan
MitsuoKusano Yoichi Hospital, Hokkaido Social Work Association, Yoichi, Japan
Kushiro Rosai Hospital, Kushiro, Hokkaido, Japan
Tomokazu Kusano Division of Gastroenterological and General Surgery, Department of
Surgery, School of Medicine, Showa University, Tokyo, Japan
Ken Masamune Faculty of Advanced Techno Surgery (FATS), Institute of Advanced
Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
FumihiroMatano Department of Neurological Surgery, Nippon Medical School, Bunkyo,
Tokyo, Japan
Kazuhiro Matsuda Division of Gastroenterological and General Surgery, Department of
Surgery, School of Medicine, Showa University, Tokyo, Japan
KosukeMatsui Department of Surgery, Kansai Medical University, Hirakata, Osaka, Japan

Editors and Contributors
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xvii
AkioMorita Department of Neurological Surgery, Nippon Medical School, Bunkyo, Tokyo,
Japan
Yoshihiro Muragaki Faculty of Advanced Techno Surgery (FATS), Institute of Advanced
Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo, Japan
YasuoMurai Department of Neurological Surgery, Nippon Medical School, Bunkyo, Tokyo,
Japan
AkihiroNakajo Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima
University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
Tsutomu Namikawa Department of Surgery, Kochi Medical School, Kochi University,
Nankoku, Kochi, Japan
Center for Photodynamic Medicine, Kochi Medical School, Nankoku, Kochi, Japan
Atsushi Nanashima Division of Hepato-biliary-pancreas Surgery, Department of Surgery,
Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
Yamato Ninomiya Department of Gastroenterological Surgery, Tokai University Hachioji
Hospital, Hachioji, Tokyo, Japan
ToshihikoNishidate Department of Surgery and Gastroenterological surgery, Muroran City
General Hospital, Muroran, Hokkaido, Japan
Hironori Odaira Department of Gastroenterological Surgery, International University of
Health and Welfare Hospital, Nasushiobara-Shi, Tochigi-Ken, Japan
Toshiro Ogura Department of Gastrointestinal Surgery, Saitama Cancer Center, Ina,
Kitaadachi District, Saitama, Japan
KeisukeOkabe Department of Plastic and Reconstructive Surgery, Keio University School of
Medicine, Shinjuku, Tokyo, Japan
JunOkamoto Faculty of Advanced Techno Surgery (FATS), Institute of Advanced Biomedical
Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
Yoshiharu Okamoto Department of Veterinary Clinical Medicine, School of Veterinary
Medicine, Tottori University, Tottori, Japan
Kenji Okita Department of Surgical Oncology and Science, Sapporo Medical University,
Sapporo, Hokkaido, Japan
KoichiOkuya Department of Surgical Oncology and Science, Sapporo Medical University,
Sapporo, Hokkaido, Japan
SojiOzawa Department of Gastroenterological Surgery, Tokai University School of Medicine,
Isehara, Kanagawa, Japan
KensukeSakai Department of Obstetrics & Gynecology, Keio University School of Medicine,
Shinjuku-ku, Tokyo, Japan
YasuoSekine Department of General Thoracic Surgery, Tokyo Women’s Medical University
Yachiyo Medical Center, Chiba, Japan
SatoruSeo Department of Surgery, Kochi Medical School, Nankoku, Kochi, Japan
YoshiakiShinden Department of Digestive Surgery, Breast and Thyroid Surgery, Kagoshima
University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
Akiko Suganami Department of Bioinformatics, Graduate School of Medicine, Chiba
University, Chiba, Japan

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Tomoharu Sugie Department of Breast Surgery, Kansai Medical University Hospital,
Hirakata, Osaka, Japan
NobuyukiSusumu Department of Obstetrics and Gynecology, International University of
Health and Welfare, Narita, Chiba, Japan
Yutaka Suzuki Department of Gastroenterological Surgery, International University of
Health and Welfare Hospital, Nasushiobara-Shi, Tochigi-Ken, Japan
ManamiTada Department of Breast Surgery, Kansai Medical University Hospital, Hirakata,
Osaka, Japan
TsuyoshiTakahashi Medical Education Center, Osaka University School of Medicine, Suita,
Osaka, Japan
Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine,
Suita, Osaka, Japan
IchiroTakemasa Department of Surgical Oncology and Science, Sapporo Medical University,
Sapporo, Hokkaido, Japan
Editors and Contributors
NobuyukiTakemura
Hepato-Biliary Pancreatic Surgery Division, Department of Surgery,
National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan
Manabu Tamura Faculty of Advanced Techno Surgery (FATS), Institute of Advanced
Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo, Japan
Yutaka Tamura Department of Bioinformatics, Graduate School of Medicine, Chiba
University, Chiba, Japan
MinoruTanabe Department of Surgery, Kochi Medical School, Nankoku, Kochi, Japan
Center for Photodynamic Medicine, Kochi Medical School, Nankoku, Kochi, Japan
MasakazuToi Professor, Breast Surgery, Graduate School of Medicine, Kyoto University,
Sakyo-ku, Kyoto, Japan
Japanese Society for Fluorescence Guided Surgery (JSFGS), Tokyo, Japan
YuichiroTsukada Department of Colorectal Surgery, National Cancer Center Hospital East,
Kashiwa, Chiba, Japan
ShunsukeTsuzuki Department of Neurosurgery, Tokyo Women’s Medical University, Tokyo,
Japan
Faculty of Advanced Techno Surgery (FATS), Institute of Advanced Biomedical Engineering
and Science, Tokyo Women's Medical University, Tokyo, Japan
SunaoUemura Department of Surgery, Kochi Medical School, Kochi University, Nankoku,
Kochi, Japan
Yasuteru Urano Graduate School of Pharmaceutical Sciences, Faculty of Pharmaceutical
Sciences, The University of Tokyo, Tokyo, Japan
ShuichiWatanabe Department of Hepatobiliary and Pancreatic Surgery, Tokyo Medical and
Dental University, Bunkyo-ku, Tokyo, Japan
Wataru Yamagami Department of Obstetrics & Gynecology, Keio University School of
Medicine, Shinjuku-ku, Tokyo, Japan
Miho Yamamoto Department of Gastroenterological Surgery, Tokai University School of
Medicine, Isehara, Kanagawa, Japan
ShinkuroYamamoto Department of Urology, Kochi Medical School, Nankoku-shi, Kochi,
Japan

Editors and Contributors
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xix
TakumiYamamoto Department of Plastic and Reconstructive Surgery, National Center for
Global Health and Medicine, Shinjuku, Tokyo, Japan
MakotoYamasaki Department of Gastroenterological Surgery, Osaka University Graduate
School of Medicine, Suita, Osaka, Japan
Kentaro Yatabe Department of Gastroenterological Surgery, Tokai University School of
Medicine, Isehara, Kanagawa, Japan
Masashi Yoshida Department of Surgery, International University of Health and Welfare
Hospital, Nasushiobara, Tochigi, Japan

Part I
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Basics of Intraoperative Fluorescence Imaging
[Introduction]
Takeak iIshizawa
Intraoperative uorescence imaging requires a “uorescent reagent” and an “imaging device
(light source and camera)” that matches the wavelength of the reagent. In the current clinical
settings, indocyanine green (ICG) and 5-aminolevulinic acid (5-ALA) are mainly used as the
uorescent reagents for various applications of intraoperative uorescence imaging. Imaging
devices are broadly classied into those for open surgery, those for endoscopic surgery (laparoscopy and thoracoscopy), and those for microscopic surgery, and the method of displaying
uorescent images and image resolution differ depending on the product. In order to utilize
uorescence imaging in the operating room, it is necessary to fully understand the features of
uorescent reagents and imaging devices. In addition, it will be increasingly important to create appropriate operative records and to store them with the videos in order to evaluate and
report the efcacy of uorescence imaging after surgery.

Clinically Available Fluorescent
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Reagents
KosukeMatsui andMasakiKaibori
1
Summary
1 Introduction
• Indocyanine green (ICG) and 5-aminolevulinic acid
(5-ALA) are typical uorescent reagents approved by the
pharmaceutical affairs bodies in Japan.
• Fluorescence imaging can be used for (1) angiography
and evaluation of blood ow, (2) lymph node mapping
and lymphography, (3) visualization of anatomical struc-
tures, and (4) cancer localization.
In recent years, intraoperative uorescence imaging has been
clinically applied to identify the extent of cancer spread and
anatomical structures in real time using uorescent probes.
In Japan, indocyanine green (ICG), 5-aminolevulinic acid
(5-ALA, a precursor of porphyrin), and uorescein have
been approved by the pharmaceutical affairs bodies for clinical use, although their indications are still limited (Table1.1).
In this chapter, we will focus on the characteristics of ICG
and 5-ALA for practical use in clinical situations.
Table 1.1
Product Indocyanine green(ICG)
Dosage form Lyophilized products Lyophilized products or granule Aqueous injection
Maximum (maximal)
Absorption wavelength,
excitation wavelength
Maximum (maximal)
wavelength of uorescence
Characteristics of uorescent Excited by infrared light
Characteristics of uorescent agents approved in Japan
805nm 375~445nm
835nm
(near-infrared uorescence)
(maximum absorption
wavelength is around 805nm)
and emits uorescence
(maximum uorescence
wavelength is around 835nm)
5-aminolevulinic acid
(5-ALA) Fluorescein
(blue light)
600~740nm
(red uorescence)
Exogenously administered 5-ALA is
synthesized from glycine and succinyl CoA
invivo, metabolized to protoporphyrin IX
(PP IX) in the process of biosynthesis from
5-ALA to heme, and selectively
accumulated in tumor cells. PP IX is a
photosensitizer and emits red uorescence
when excited by blue light (400–410nm).
494nm
521nm
(visible light region: Green)
Represents strong green
uorescence under alkaline
conditions
K. Matsui (*) · M. Kaibori
Department of Surgery, Kansai Medical University,
Hirakata, Osaka, Japan
e-mail: matsuik@hirakata.kmu.ac.jp
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023
T. Ishizawa (ed.), Fluorescence-Guided Surgery, https://doi.org/10.1007/978-981-19-7372-7_1
3

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K. Matsui and M. Kaibori
2 Indocyanine Green
2.1 Indications (Insurance Coverage)
The insurance coverage of ICG in Japan has been limited to
(1) liver function tests (plasma loss rate, blood stagnation
rate, and hepatic blood ow measurement); (2) circulatory
function tests (cardiac output, mean circulatory time, or
abnormal blood ow measurement); (3) cerebral angiography during neurosurgery (by uorescence measurement during infrared irradiation); and (4) identication of sentinel
lymph nodes in breast cancer and malignant melanoma. In
the 2018 revision of the medical fee system, intraoperative
monitoring of blood ow (by measuring uorescence during
infrared irradiation) was approved. In the revision of medical
fees in 2020, an additional fee can be calculated when intraoperative uorescence imaging is used for the identication
of tumors, blood vessels, and gastrointestinal perfusion with
ICG or aminolevulinic acid hydrochloride.
2.2 Dosage andAdministration
2.2.1 Liver Function Test
• For plasma disappearance rate measurement and blood
stagnation rate measurement
In the case of cerebral angiography during neurosurgery,
25mg of ICG is dissolved in 5mL of water for injection, and
the usual dose is 0.1–0.3mg/kg administered intravenously.
2.2.4 Identication ofSentinel Lymph Node
In the identication of sentinel lymph nodes in breast cancer,
25mg of ICG is dissolved in 5mL of water for injection, and
5 mL or less is usually administered in the vicinity of the
malignant tumor or subcutaneously in the nipple area in
divided doses as appropriate. In the identication of sentinel
lymph nodes in malignant melanoma, 25mg of ICG is dissolved in 5mL of water for injection, and 1mL is usually
administered in several intradermal locations near the malignant tumor in divided doses as appropriate.
Point
• Fluorescence imaging using indocyanine green for identication of liver cancer
In our center, the ICG retention rate at 15minutes (ICG
R15) is routinely measured by injecting ICG at a dose of
0.5 mg/kg for the estimation of liver function [1, 2]. For
intraoperative identication of liver cancer, the ICG that was
administered for measurement of ICGR15 can also be used
as a uorescent source, if patients underwent the liver function test within 14days before surgery.
A dose equivalent to 0.5mg of ICG per kilogram of body
weight is diluted to about 5mg/mL with water for injection
and gradually administered intravenously through the elbow
vein within 30seconds while paying attention to symptoms.
• For hepatic blood ow measurement
Dissolve 25mg of ICG in as little water as possible for
injection, dilute to a concentration of 2.5–5 mg/mL with
saline solution, and administer the above solution equivalent
to 3mg of ICG intravenously. Thereafter, the drug is administered intravenously at a constant rate of 0.27–0.49mg/min
for about 50minutes until blood sampling is completed.
2.2.2 Circulatory Function Test
Depending on the purpose, ICG is injected into various vascular sites from the intracardiac cavity to the peripheral
veins, usually through the forearm vein. The dose per adult is
5–10mg of ICG, or about 1–2mL, and the dose for children
is reduced according to their body weight.
2.2.3 Evaluation ofBlood Flow inBlood Vessels
andTissues
Indocyanine green is dissolved in 5–10 mL of water for
injection at a dose of 25mg and administered intravenously
at a dose of 0.04–0.3mg/kg, depending on the intended use.
3 5-Aminolevulinic Acid
3.1 Indications (Insurance Coverage)
5-aminolevulinic acid, a precursor of porphyrin, is a naturally occurring amino acid in the body and a precursor of
heme. In cancer cells, an increase in porphobilinogen deaminase activity and a decrease in ferrochelatase activity cause
intracellular accumulation of protoporphyrin IX (PpIX),
which emits red uorescence with a peak at 635nm upon
excitation with 405nm blue-violet light (Table1.1). 5-ALA
has been clinically applied as a photosensitizer in photodynamic diagnosis using this mechanism, and is covered by
insurance in Japan for “visualization of tumor tissue during
tumor resection of malignant glioma” in neurosurgery and
“visualization of non-muscle layer invasive bladder cancer
during transurethral resection of bladder tumor” in urological surgery.
3.2 Dosage andAdministration
The usual adult dose of 20 mg/kg of aminolevulinic acid
hydrochloride dissolved in water is orally administered
3 hours (range: 2–4hours) before induction of anesthesia
during surgery.
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