Is Fluorescent Indocyanine Green for Imaging of common Bile Ducts During Laparoscopic?”
Diagnosis Uses ICG is an eye test that is used to detect blood vessel problems in the choroid. This test is important because some blood vessel conditions can lead to vision loss if not diagnosed and treated early. The procedure uses an injected harmless green dye called indocyanine green. The dye reflects infrared light that is picked up by a special camera. An ICG is different than a fluorescein angiography, a similar imaging test and is often used in conjunction with a fluorescein angiogram to define a particular problem in the macula. ICG produces detailed pictures that can show leaking blood vessels, blocked blood vessels, or vascular abnormalities. The test is also used to determine if laser surgery is possible and to plan laser surgery. ICG can pinpoint a blood vessel leak and determine the exact location to be lasered. ICG is used for many conditions, including age-related macular degeneration, choroid tumors, retinal detachment, retinal hemorrhage, and choroidal neovasculariza
In the April issue of Archives, Ishizawa et al1 reported on the clinical use of indocyanine green (ICG) fluorescent cholangiography in a case of laparoscopic cholecystectomy (LC). A 2.5-mg intravenous dose of ICG given 2 hours before surgery defined the biliary anatomy by fluorescent imaging. The laparoscopic fluorescent intraoperative ICG cholangiography proved safe and efficient in identifying the cystic and common hepatic ducts within the hepatoduodenal ligament. Although the experience is limited to a single case, Ishizawa et al are justified in emphasizing the merits of uninterrupted cholangiographic imaging, avoidance of ionizing radiation, and potential bile duct injury (BDI) during transcystic insertion of the cholangio catheter. We described our experimental and clinical experience with color cholangiography using a 1.0-mg/kg intravenous injection of ICG 20 to 30 minutes before cholecystectomy.2 Our investigation was approved by our institutional review board and the Food and
