Spence V A, Walker W F
J Surg Res. 1984 Mar;36(3):278-81. doi: 10.1016/0022-4804(84)90099-4.
This study was conducted in order to establish a relationship between thermographically defined levels of viability in the ischemic limb and a measurement of skin blood flow. Color thermograms (10 colors, 0.6 degree C apart) defined the temperature gradient and skin blood flow was measured, using the radioactive clearance method in three discrete isotherms set 1.8 degrees C apart. The differences in skin blood flow measured in the three separate isotherms were significant (P less than 0.001). The results of this study support previously unqualified assertions that thermographic temperature gradients along an ischemic limb are indicative of local microcirculatory status. The potential of the thermographic method for demarcating viable and nonviable skin flaps at the chosen site of amputation is confirmed.
进行本研究是为了确定缺血肢体热成像定义的存活水平与皮肤血流测量之间的关系。彩色热像图（10种颜色，间隔0.6摄氏度）确定了温度梯度，并采用放射性清除法在间隔1.8摄氏度设置的三个离散等温线中测量皮肤血流。在三个单独的等温线中测量的皮肤血流差异具有统计学意义（P<0.001）。本研究结果支持了之前未经证实的论断，即沿缺血肢体的热成像温度梯度可指示局部微循环状态。热成像方法在选定截肢部位区分存活和非存活皮瓣的潜力得到了证实。
