fig3
![Dynamic infrared thermography and smartphone thermal imaging as an adjunct for preoperative, intraoperative, and postoperative perforator free flap monitoring](https://image.oaes.cc/8454390c-8e1c-4337-9c94-1cdef03f5164/3291.fig.3.jpg)
Figure 3. Preoperative: with rewarming, the brightest anterolateral thigh region “hot spot” denoted by marking pin held by assistant is observed proximal to a circle faintly seen drawn about midpoint of line (endpoints marked by yellow arrows) from anterosuperior iliac spine to superior lateral border of patella (left); and second “hot spot” in similar fashion seen more distal at center of that circle (right)