ABI与彩超频谱、TBI在糖尿病下肢动脉疾病中相关性研究

Correlation of ABI. color doppler ultrasound spectrum and TBI of lower extremity artery in diabetic patients

目的探讨糖尿病下肢动脉病变踝肱指数（ABI）与超声彩色多普勒频谱、趾肱指数（TBI）相关性分析。方法采用多功能外周血管检查仪及超声彩色多普勒检查仪对55位糖尿病患者行109例下肢动脉检查，测定ABI、TBI及彩色多普勒血流频谱。结果A1组（0．9〈ABI≤1．3）与A2组（ABI≤0．9）ABI和彩色多普勒血流频谱改变有统计学意义；TBI与ABI在A1组及A2组具有相关性；B1组（TBI≥0．7）与B2组（TBI〈0．7）TBI和光电容积描记（PPG）波形改变差异有统计学意义P〈0．05。结论ABI测压检查与超声彩色多普勒相结合，避免了单纯使用多普勒测定血流波形的不足和动脉中层钙化对ABI结果的影响。ABI、TBI、PPG波形与彩色多普勒血流频谱等多项检测相结合能早期确定病变。

Objective To investigate the correlation ofankle-brachial index（ABI）, color doppler ultrasound spectrum and toe-brachial index （TBI） of lower extremity artery in diabetic patients. Methods ABI, TBI and color doppler ultrasound spectrum measurement were carried out on 109 lower extremity artery of 55 diabetic patients. Groups were assigned according to ABI and TBI values and the correlation of ABI and color doppler ultrasound spectrum as well as ABI and TBI. Results The changes of ABI and of color doppler ultrasound spectrum in Group A1 （0.9〈ABI≤ 1.3） and Group A2 （ABI ≤ 0.9） were statistically significant. There was correlation between ABI and TBI in Group A1 and A2. The changes of TBI in group B1 （TBI≥ 0.7 ） and B2 （TBI〈0.7） and the change of photoplethysmographg（PPG） waveform were statistically significant. Conclusion The limitation of measuring the waveform with dopplor as well as the influence of calcification of artery can be avoided by combining ABI and color doppler ultrasound spectrum measurement. Early diagnosis of pathological changes of diabetic patients can be realized exactly by combing ABI,TBI and color doppler ultrasound spectrum.