Abstract
[Background and Objective] In the case of treatment that refractory ulcer induced peripheral arterial disease, it is very important that the 2D tissue circulation area screening before debridement but there is no well-established and easy evaluation method. [Method] Firstly the lower leg of test subjects was fixed and inflated for temporal avascularization. After the inflating were released and color change of skin surface were measured with HD movie camera. All frames of the movie data were split to snap images then the red image were extracted from RGB alpha channel. The little changes of red color parameter were emphasized and noise were reduced and compressed by mathematical formula which we have developed for this image processing in off-line PC after captured movie data. For validation check of our method, we made comparison between existing TcPO2 measurement system generally used before debridement surgery. [Results] Using this system, 2D hemodynamics of lower leg was visualized easily and noninvasively.
