Thermal representations of underlying perforator vessels on the surface of a human forearm have previously been mapped via recovery-enhanced infrared imaging, which is performed as skin blood flow recovers to baseline levels following cooling of the forearm. We noted that the same vessels could also be observed during reactive hyperaemia tests after the complete 5-min occlusion of the forearm by an inflatable cuff. However, not all the subjects showed vessels with acceptable contrast. Therefore, we applied a thermographic signal reconstruction algorithm to reactive hyperaemia testing, which substantially enhanced signal-to-noise ratios between perforator vessels and their surroundings, thereby enabling their mapping with higher accuracy and a shorter occlusion period.

人类前臂表面下方穿支血管的热表示先前已通过恢复增强红外成像绘制，这是在前臂冷却后皮肤血流恢复到基线水平时执行的。我们注意到，在用充气袖带完全闭塞前臂 5 分钟后，在反应性充血测试中也可以观察到相同的血管。然而，并非所有受试者都显示出具有可接受对比度的血管。因此，我们将热成像信号重建算法应用于反应性充血测试，大大提高了穿支血管与其周围环境之间的信噪比，从而使它们的映射具有更高的准确性和更短的闭塞期。