Tenorio Xavier, Mahajan Ajay L, Elias Badwi, van Riempst Julie Schaepkens, Wettstein Reto, Harder Yves, Pittet Brigitte
Department of Plastic and Reconstructive Surgery, University Hospitals of Geneva, Geneva, Switzerland.
Ann Plast Surg. 2011 Aug;67(2):143-6. doi: 10.1097/SAP.0b013e3181ef6da3.
Dynamic Infrared Imaging (DIRI) is a noninvasive technique that precisely analyzes the infrared radiation of any object. We used this technique to locate the dominant perforator vessels in flap surgery in conjunction with conventional Doppler.
Ten patients scheduled for deep inferior epigastric artery perforator flap and 6 for free-fibular flaps were selected. Perforator vessels were localized in the donor area, using Doppler and DIRI. The ability to locate the dominant perforators was compared between both techniques.
DIRI produced a precise map showing the location of the perforators and their area of perfusion at the skin level. Their dominance can be determined by their size. Flow Doppler located the perforators at the aponeurotic level without size and perfusion information.
DIRI produces a skin thermographic map of perforator vessels and their perfusion area. Handheld Doppler locates perforators at the aponeurotic level. Their combination increases safety in the planning of perforator flap surgery.
动态红外成像（DIRI）是一种能精确分析任何物体红外辐射的非侵入性技术。我们结合传统多普勒技术，运用该技术在皮瓣手术中定位主要穿支血管。
选取10例行腹壁下动脉穿支皮瓣手术的患者和6例行游离腓骨皮瓣手术的患者。在供区使用多普勒和DIRI定位穿支血管。比较两种技术定位主要穿支血管的能力。
DIRI生成了一张精确的图谱，显示了穿支血管在皮肤层面的位置及其灌注区域。可根据其大小确定其优势。血流多普勒在腱膜层面定位穿支血管，但无大小和灌注信息。
DIRI生成穿支血管及其灌注区域的皮肤热成像图。手持式多普勒在腱膜层面定位穿支血管。两者结合可提高穿支皮瓣手术规划的安全性。
