| Autor: |
Vassilenko, Valentina, Poplavska, Anna, Casal, Diogo, Junior, Edivaldo |
| Předmět: |
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| Zdroj: |
Artery Research; 2023 Supplement, Vol. 29 Issue 1, pS15-S16, 2p |
| Abstrakt: |
Recently an extensive clinical experience in flap surgery has confirmed that its success depends on the correct identification of vital perforator vessels [1]. Unfortunately, the perforator vessels frequently have a variable location. So, the knowledge about perforator anatomy during preoperative planning is one of the most critical factors. In this work, we present the method and experimental results for noncontact and fast localization of the cutaneous perforators using Infrared Thermography (IRT). This imaging technique can provide real-time information on skin perfusion by measuring body surface temperature. Validation of the method was performed against the ultrasound technology realized in the hand-held Doppler flowmeter, which is widely used in most hospitals and is an essential tool where a rapid analysis of the vascular status of a patient is routine. Both technics were applied in this work for the identification of forearm cutaneous perforator vessels. The reflection of sound waves, predominantly from intravascular blood flow of the forearm, was registered by a hand-held BT-200 V ® Vascular Doppler pan. The infrared images were obtained by two cameras: FLIR ® E6 with temperature sensitivity < 0.06 °C and (320 × 240)-pixel display resolution, and Thermal Expert with sensitivity < 0.05 °C and array format 640 × 480. Perforator mapping of the forearm area ware compared for accuracy, timing, and the operator's skills. Obtained results show that IRT images provide valuable real-time information on the hemodynamic quality of perforators and their accurate location. Its potential to reveal underlying perforator vessels may also be used for postoperative monitoring of flap perfusion. [ABSTRACT FROM AUTHOR] |
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