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Intraoperative exploration of biliary anatomy using fluorescence imaging of indocyanine green in experimental and clinical cholecystectomies

  • Topics
  • Recent advances in visualization and imaging in HBP sciences
  • Published:
Journal of Hepato-Biliary-Pancreatic Sciences

Abstract

Background/purpose

We evaluated the usefulness of intraoperative exploration of the biliary anatomy using fluorescence imaging with indocyanine green (ICG) in experimental and clinical cholecystectomies.

Methods

The experimental study was done using two 40-kg pigs and the clinical study was done in 12 patients for whom cholecystectomy was planned from January 2009 to June 2009. Initially we used a laparoscopic approach for the evaluation of fluorescence imaging of the biliary system in the two pigs. Then the clinical study was started on the basis of these experimental results. ICG (1.0 ml/body of 2.5 mg/ml ICG) was infused 1–2 h before surgery. With the subjects under general anesthesia we observed in real time the condition of the biliary tract under the guidance of fluorescence imaging employing an infrared camera or a prototype laparoscope. ICG was added intravenously to observe the location or flow condition of the cystic artery.

Results

We obtained a clear view of the biliary tract and the location of the cystic duct in the two pigs. Local compression with a transparent hemispherical plastic device was effective for offering a clearer view. The biliary tract, except for the gallbladder, was clearly recognized in all clinical subjects. Local compression with a transparent hemispherical plastic device for open cholecystectomy and a flat plastic device for laparoscopy provided clearer visualization of the confluence between the cystic duct and common bile duct or common hepatic duct. The location of the cystic artery was revealed after division of the connective tissues, and the flow condition of the cystic artery was confirmed 7–10 s after intravenous re-infusion of ICG. There were no adverse events related to the intraoperative procedure or the ICG itself.

Conclusions

This method is safe and easy for the identification of the biliary anatomy, without requiring cannulation into the cystic duct, X-ray equipment, or the use of radioactive materials. Although fluorescence imaging is still at an early stage of application in comparison with ordinary intraoperative cholangiography, we expect that this method will become routine, offering a lower degree of invasiveness that will help avoid bile duct injury.

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Authors and Affiliations

  1. Second Department of Surgery, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Tochigi, 321-0293, Japan

    Nobumi Tagaya, Mitsugi Shimoda, Masato Kato, Aya Nakagawa, Akihito Abe, Yoshimi Iwasaki & Keiichi Kubota

  2. Department of Surgery, Yachiyo Medical Center, Tokyo Women’s Medical University, 477-96 Shinden, Ohwada, Yachiyo, Chiba, 276-0046, Japan

    Hideto Oishi & Noriyasu Shirotani

Authors
  1. Nobumi Tagaya
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  2. Mitsugi Shimoda
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  3. Masato Kato
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  4. Aya Nakagawa
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  5. Akihito Abe
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  6. Yoshimi Iwasaki
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  7. Hideto Oishi
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  8. Noriyasu Shirotani
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  9. Keiichi Kubota
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Corresponding author

Correspondence to Nobumi Tagaya.

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Tagaya, N., Shimoda, M., Kato, M. et al. Intraoperative exploration of biliary anatomy using fluorescence imaging of indocyanine green in experimental and clinical cholecystectomies. J Hepatobiliary Pancreat Sci 17, 595–600 (2010). https://doi.org/10.1007/s00534-009-0195-2

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  • DOI: https://doi.org/10.1007/s00534-009-0195-2

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