Noninvasive Free Flap Monitoring Using Eulerian Video Magnification | Zendy

Yuan Fang Liu | Zendy; Christopher Vuong | Zendy; Paul C. Walker | Zendy; Nathaniel R. Peterson | Zendy; Jared C. Inman | Zendy; Pedro Alcantara Andrade Filho | Zendy; Steve Choon-Sung Lee | Zendy

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Noninvasive Free Flap Monitoring Using Eulerian Video Magnification

Author(s) -

Yuan Fang Liu,

Christopher Vuong,

Paul C. Walker,

Nathaniel R. Peterson,

Jared C. Inman,

Pedro Alcantara Andrade Filho,

Steve Choon-Sung Lee

Publication year - 2016

Publication title -

case reports in otolaryngology

Language(s) - English

Resource type - Journals

eISSN - 2090-6765

pISSN - 2090-6773

DOI - 10.1155/2016/9471696

Subject(s) - free flap , magnification , medicine , eulerian path , free flap reconstruction , computer science , hands free , surgery , computer vision , human–computer interaction , physics , lagrangian , mathematical physics

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.

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