BACKGROUND: Although laparoscopic hepatectomy has increasingly been used to treat cancers in the liver, the accuracy of intraoperative diagnosis may be inferior to that of open surgery because the ability to visualize and palpate the liver surface during laparoscopy is relatively limited. Fluorescence imaging has the potential to provide a simple compensatory diagnostic tool for identification of cancers in the liver during laparoscopic hepatectomy. METHODS: In 17 patients who were to undergo laparoscopic hepatectomy, 0.5 mg/kg body weight of indocyanine green (ICG) was administered intravenously within the 2 weeks prior to surgery. Intraoperatively, a laparoscopic fluorescence imaging system obtained fluorescence images of its surfaces during mobilization of the liver. RESULTS: In all, 16 hepatocellular carcinomas (HCCs) and 16 liver metastases (LMs) were resected. Of these, laparoscopic ICG fluorescence imaging identified 12 HCCs (75%) and 11 LMs (69%) on the liver surfaces distributed over Couinaud's segments 1-8, including the 17 tumors that had not been identified by visual inspections of normal color images. The 23 tumors that were identified by fluorescence imaging were located closer to the liver surfaces than another nine tumors that were not identified by fluorescence imaging (median [range] depth 1 [0-5] vs. 11 [8-30] mm; p < 0.001). CONCLUSIONS: Like palpation during open hepatectomy, laparoscopic ICG fluorescence imaging enables real-time identification of subcapsular liver cancers, thus facilitating estimation of the required extent of hepatic mobilization and determination of the location of an appropriate hepatic transection line.
BACKGROUND: Although laparoscopic hepatectomy has increasingly been used to treat cancers in the liver, the accuracy of intraoperative diagnosis may be inferior to that of open surgery because the ability to visualize and palpate the liver surface during laparoscopy is relatively limited. Fluorescence imaging has the potential to provide a simple compensatory diagnostic tool for identification of cancers in the liver during laparoscopic hepatectomy. METHODS: In 17 patients who were to undergo laparoscopic hepatectomy, 0.5 mg/kg body weight of indocyanine green (ICG) was administered intravenously within the 2 weeks prior to surgery. Intraoperatively, a laparoscopic fluorescence imaging system obtained fluorescence images of its surfaces during mobilization of the liver. RESULTS: In all, 16 hepatocellular carcinomas (HCCs) and 16 liver metastases (LMs) were resected. Of these, laparoscopic ICG fluorescence imaging identified 12 HCCs (75%) and 11 LMs (69%) on the liver surfaces distributed over Couinaud's segments 1-8, including the 17 tumors that had not been identified by visual inspections of normal color images. The 23 tumors that were identified by fluorescence imaging were located closer to the liver surfaces than another nine tumors that were not identified by fluorescence imaging (median [range] depth 1 [0-5] vs. 11 [8-30] mm; p < 0.001). CONCLUSIONS: Like palpation during open hepatectomy, laparoscopic ICG fluorescence imaging enables real-time identification of subcapsular liver cancers, thus facilitating estimation of the required extent of hepatic mobilization and determination of the location of an appropriate hepatic transection line.
Authors: Joost R van der Vorst; Boudewijn E Schaafsma; Merlijn Hutteman; Floris P R Verbeek; Gerrit-Jan Liefers; Henk H Hartgrink; Vincent T H B M Smit; Clemens W G M Löwik; Cornelis J H van de Velde; John V Frangioni; Alexander L Vahrmeijer Journal: Cancer Date: 2013-06-21 Impact factor: 6.860
Authors: Joseph F Buell; Daniel Cherqui; David A Geller; Nicholas O'Rourke; David Iannitti; Ibrahim Dagher; Alan J Koffron; Mark Thomas; Brice Gayet; Ho Seong Han; Go Wakabayashi; Giulio Belli; Hironori Kaneko; Chen-Guo Ker; Olivier Scatton; Alexis Laurent; Eddie K Abdalla; Prosanto Chaudhury; Erik Dutson; Clark Gamblin; Michael D'Angelica; David Nagorney; Giuliano Testa; Daniel Labow; Derrik Manas; Ronnie T Poon; Heidi Nelson; Robert Martin; Bryan Clary; Wright C Pinson; John Martinie; Jean-Nicolas Vauthey; Robert Goldstein; Sasan Roayaie; David Barlet; Joseph Espat; Michael Abecassis; Myrddin Rees; Yuman Fong; Kelly M McMasters; Christoph Broelsch; Ron Busuttil; Jacques Belghiti; Steven Strasberg; Ravi S Chari Journal: Ann Surg Date: 2009-11 Impact factor: 12.969
Authors: Yukihiko Hiroshima; Thinzar M Lwin; Takashi Murakami; Ali A Mawy; Tanaka Kuniya; Takashi Chishima; Itaru Endo; Bryan M Clary; Robert M Hoffman; Michael Bouvet Journal: J Surg Oncol Date: 2016-10-03 Impact factor: 3.454