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Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology

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Published on: October 20, 2010

Intraoperative fluorescence image-guided pulmonary segmentectomy.

Yujin Oh¹, Yu Hua Quan², Minji Kim³

¹Department of Bio-Convergence Engineering, Korea University, Seoul, Korea; Future IT R&D Lab., LG Electronics, Seoul, Korea.

The Journal of Surgical Research

|June 28, 2015

Summary

This summary is machine-generated.

This study validates image-guided pulmonary segmentectomy using intraoperative color and fluorescence-merged imaging system (ICFIS). The optimal indocyanine green (ICG) dosage ensures sustained visualization of intersegmental planes for safer surgery.

Keywords:

Fluorescence Image-guided surgery Indocyanine green Intraoperative Pulmonary segmentectomy

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Area of Science:

Surgical Innovation
Medical Imaging
Thoracic Surgery

Background:

Intraoperative color and fluorescence-merged imaging system (ICFIS) is a novel technology for pulmonary segmentectomy.
Accurate demarcation of intersegmental borders is crucial for this procedure.

Purpose of the Study:

To validate ICFIS for image-guided segmentectomy.
To determine the optimal indocyanine green (ICG) dosage for sustained intraoperative imaging.

Main Methods:

Pulmonary segmentectomy was performed on rabbits with varying ICG doses (0.3, 0.6, 3.0 mg/kg).
The optimal ICG dose was then used to guide ICFIS in pigs undergoing segmentectomy.

Main Results:

ICG concentrations of 0.3, 0.6, and 3.0 mg/kg showed contrast ratios of 1.9, 2.0, and 2.1, respectively.
A 0.6 mg/kg ICG dose resulted in a 15-minute washout time in pigs, enabling successful ICFIS-guided segmentectomy without additional demarcation procedures.

Conclusions:

ICF IS with ICG allows immediate visualization of intersegmental planes during pulmonary segmentectomy.
The determined ICG dosage provides sustained visualization throughout the surgical procedure.