血管回声跟踪技术对高血压患者颈动脉弹性功能的检测

Quantitative Evaluation of Carotid Elasticity in Hypertensive Patients by E-Tracking Technique

目的:探讨血管回声跟踪技术(echotracking,ET)检测高血压患者颈动脉弹性功能指标β、Ep、AC、AI、PWVβ的改变及其意义。资料及方法:应用ET检测高血压患者共58例(平均年龄62.5岁)的颈动脉的弹性指标,包括僵硬度参数β、压力应变弹性系数Ep、动脉顺应性AC、脉搏波放大指数AI及脉搏波传递速度PWVβ。58例次中,有17例为高血压控制者,41例为高血压未控制者;58例中有33例为高血压不合并其他疾病,25例为高血压合并其他疾病。比较高血压组合并及不合并其他疾病组与147例正常人颈动脉弹性有无差异;高血压控制组与未控制组颈动脉弹性有无差异。并用SAS6.12做统计分析。结果:高血压患者无论是否合并其他疾病其颈动脉的β、Eρ、AC及PWVβ与正常人均有差异,AI无差异;高血压控制组与未控制组颈动脉的AI及PWVβ有差异,β、Eρ及AC无差异。结论:ET技术能够较敏感的检测高血压的颈动脉弹性功能;高血压患者无论是否合并其他疾病其颈动脉弹性功能都减低,血压比其他疾病对弹性影响更加明显;控制血压可部分改善颈动脉弹性功能指标。

Objective： To detect the carotid elasticity quantitatively in hypertensive patients by E - Tracking technique. Methods： With ET technique, the stiffness parameter （β）, pressure- strain elasticity modulus （Ep）, arterial compliance （AC）, argumentation index （AI） and one- point pulse wave velocity （PWVβ） of carotid in 58 cases hypertensive patients and 147 cases normal adults were calculated automatically. Within the 58 patients 17 cases＇ s blood pressure were controlled and 41 cases＇ s were not controlled. Among these 58 patients 33 cases and 25 cases were hypertension with and without other disease. The parameters of hypertensive patients with and without other disease were compared with normal adults respectively. And the elasticity of hypertensive patients with and without controlled blood pressure were compared. The statistic software SAS6.12 was used. Results： The carotidβ, Eo, AC and PWVβ of hypertensive patients were different compared with normal adults no matter the patient with or without some other disease. The AI and PWVβin the BP controlled group were different compared with those not controlled group. Conclusions： The carotid elasticity of hypertensive patients were decreased no matter the patient with or without some other disease. The carotid elasticity of those BP controlled patients were improved partly compared with those BP not controlled patients. These changes can be detected by E- Tracking technique.