Noninvasive Free Flap Monitoring Using Eulerian Video Magnification

Yuan Fang Liu; Christopher Vuong; Paul Charles Walker; Nathaniel Ray Peterson; Jared Christian Inman; Pedro Alcantara Andrade Filho; Steve Choon-Sung Lee

doi:10.1155/2016/9471696

Case Reports in Otolaryngology (Jan 2016)

Noninvasive Free Flap Monitoring Using Eulerian Video Magnification

Yuan Fang Liu,
Christopher Vuong,
Paul Charles Walker,
Nathaniel Ray Peterson,
Jared Christian Inman,
Pedro Alcantara Andrade Filho,
Steve Choon-Sung Lee

Affiliations

Yuan Fang Liu: Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, CA, USA
Christopher Vuong: Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, CA, USA
Paul Charles Walker: Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, CA, USA
Nathaniel Ray Peterson: Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, CA, USA
Jared Christian Inman: Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, CA, USA
Pedro Alcantara Andrade Filho: Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, CA, USA
Steve Choon-Sung Lee: Department of Otolaryngology-Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, CA, USA

DOI: https://doi.org/10.1155/2016/9471696
Journal volume & issue: Vol. 2016

Abstract

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Eulerian Video Magnification (EVM) can enhance subtle changes in videos to reveal what was once invisible to the naked eye. In this proof of concept study, we investigated using EVM as a novel form of free flap monitoring. Free flaps with skin paddles were filmed in the operating room with manipulation of their pedicles. In a representative 77-year-old female who received a latissimus dorsi-serratus-rib composite free flap, EVM was able to detect blockage of arterial or venous supply instantaneously, providing a visible representation through degree of color change in videos. EVM has the potential to serve as a powerful free flap monitoring tool with the benefit of being noninvasive, sensitive, easy-to-use, and nearly cost-free.

Published in Case Reports in Otolaryngology

ISSN: 2090-6765 (Print); 2090-6773 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Medicine: Otorhinolaryngology
Website: https://onlinelibrary.wiley.com/journal/2807

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