Hiroto Nishino1,2,3, Hannah M Hollandsworth1,4, Yoshihiko Tashiro1,2, Jun Yamamoto1,2, Siamak Amirfakhri1,4, Filemoni Filemoni1,4, Norihiko Sugisawa1,2, Robert M Hoffman1,2,4, Michael Bouvet5,4. 1. Department of Surgery, University of California San Diego, San Diego, CA, U.S.A. 2. AntiCancer, Inc., San Diego, CA, U.S.A. 3. Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan. 4. Department of Surgery, VA San Diego Healthcare System, San Diego, CA, U.S.A. 5. Department of Surgery, University of California San Diego, San Diego, CA, U.S.A. mbouvet@ucsd.edu.
Abstract
BACKGROUND/AIM: The visualization of hepatic segments with indocyanine green (ICG) fluorescence can aid in anatomic liver resection. The present study aimed to develop a method to specifically label an hepatic segment in a nude mouse model with liver metastasis. MATERIALS AND METHODS: An orthotopic mouse model was established by surgical orthotopic implantation (SOI) of a patient-derived colon-cancer liver metastasis in the left lobe of the liver. Three weeks after SOI, the left Glissonean pedicle was ligated and 10 μg ICG was administrated intravenously. Images were obtained with the Pearl Trilogy Imaging System. RESULTS: All mice expressed an 800 nm signal from ICG on the right lobe of the liver. The left lobe of the liver, in which the tumor was located, showed no fluorescence and had ischemia due to successful ligation of the Glissonean pedicle. CONCLUSION: The ligation of the Glissonean pedicle enables specific liver-segment labeling with ICG, which has potential clinical application for liver metastasectomy. Copyright
BACKGROUND/AIM: The visualization of hepatic segments with indocyanine green (ICG) fluorescence can aid in anatomic liver resection. The present study aimed to develop a method to specifically label an hepatic segment in a nude mouse model with liver metastasis. MATERIALS AND METHODS: An orthotopic mouse model was established by surgical orthotopic implantation (SOI) of a patient-derived colon-cancer liver metastasis in the left lobe of the liver. Three weeks after SOI, the left Glissonean pedicle was ligated and 10 μg ICG was administrated intravenously. Images were obtained with the Pearl Trilogy Imaging System. RESULTS: All mice expressed an 800 nm signal from ICG on the right lobe of the liver. The left lobe of the liver, in which the tumor was located, showed no fluorescence and had ischemia due to successful ligation of the Glissonean pedicle. CONCLUSION: The ligation of the Glissonean pedicle enables specific liver-segment labeling with ICG, which has potential clinical application for liver metastasectomy. Copyright
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