Hamamatsu PDE

ICG Fluorescence and the Prediction of Flap Necrosis

Eric Sturgis Anastomosis, Free Flap Perfusion, Free Flaps, General and Transplant Surgery, Hamamatsu PDE, ICG Fluorescence, ICG Perfusion, Microsurgery, Microvascular, Plastic Surgery, Reconstructive Surgery

Prediction of flap necrosis with laser induced indocyanine green fluorescence in a rat model.
In this study, German researchers from Rechts der Isar Hospital in Munich used a rat model and ICG fluorescence to determine what level of perfusion gave good indication of future flap necrosis. In areas that would become necrotic they found that the perfusion rate was less than 25% than that of the surrounding area.

Bibliographic information:

Giunta, R. E., Holzbach, T., Taskov, C., Holm, P. S., Brill, T., Busch, R., Gansbacher, B., & Biemer, E. (2005). Prediction of flap necrosis with laser induced indocyanine green fluorescence in a rat model. Department of Plastic and Reconstructive Surgery, Munchen, Germany.

Download Article


PDE in the Plastic and Reconstructive Journal

Sara Sturgis Anastomosis, Free Flap Perfusion, Free Flaps, General and Transplant Surgery, Hamamatsu PDE, ICG Fluorescence, ICG Perfusion, Microsurgery, Plastic Surgery, Reconstructive Surgery

Detection of Skin Perforators by Indocyanin Green Fluorescence Nearly Infrared Angiography
This article studies the effectiveness of Green Fluorescence near-infrared angiography in identifying perforator vessels for use in island flap procedures. The Hamamatsu PDE camera was used for the angiographies. The authors found that the PDE was effective in helping to identify perforator vessels up to a depth of 2 cm below skin surface. Vessels were identified prior to raising the flaps. Compared with the Conventional angiography, magnetic resonance angiography,computed tomographic angiography, ultrasonic Doppler flowmetry, laser Doppler imaging, and recovery-enhanced thermography, the PDE was found to identify perforators more precisely and at a higher resolution with less background noise.

Bibliographic information:
Azuma, Ryuichi; Morimoto, Yuji; Masumoto, Kazuma; Nambu, Masaki; Takikawa, Megumi; Yanagibayashi, Satoshi; Yamamoto, Naoto; Kikuchi, Makoto; and Kiyosawa, Tomoharu. “Detection of Skin Perforators by Indocyanin Green Fluorescence Nearly Infrared Angiography” Plastic and Reconstructive Journal. Volume 122, Number 4. October 2008. Pages 1062-1067.

Download Article