2型糖尿病并发下肢血管病变的热像图观察

Thermography in Arterial Lesions of Lower Limbs after Type 2 Diabetes Mellitus

目的了解2型糖尿病并发下肢血管病变的热像图表现特点。方法用红外热像仪对19例2型糖尿病并发下肢血管病变患者和20例正常人进行扫描,患者同时行双下肢血管多普勒超声检查。结果患者双小腿热像图呈现异常冷区,或两侧热像图明显不对称,或皮肤区域性温差显著大于正常对照组。与多普勒超声检查结果比较:患者热像图异常率100%,温差异常率84%;多普勒超声结果阳性率89%。结论热像图检查可作为糖尿病患者是否并发下肢血管病变的筛查方法,比多普勒超声检查更敏感。

Objective To investigate the thermography characteristics in arterial lesions of lower limbs after type 2 diabetes mellitus. Methods 19 patients with arterial lesions of lower limbs after type 2 diabetes mellitus and 20 matched healthy controls were screened with digital thermography. The arteries of lower limbs of the patients were examined with the Doppler ultrasound. Results The patients＇ thermography showed abnormal cool regions or significant asymmetry between bilateral lower limbs or significant difference in temperature of bilateral lower limbs compared to the controls. The abnormal finding of thermography could be found in 100 % patients, the difference of temperature between bilateral lower limbs could be found in 84% patients, while the abnormal finding of Doppler ultrasound in 89 % patients. Conclusion Thermography can be used to screen the arterial lesions of lower limbs after type 2 diabetes mellitus, which is more sensitive than Doppler ultrasound.