高频超声对高血压前期人群颈动脉内-中膜厚度及斑块形成的检测

目的 应用高频超声检测高血压前期人群双侧颈动脉内-中膜厚度（IMT）及斑块形成情况,探讨其颈动脉粥样硬化程度.方法 对590名高血压前期人群进行颈部血管超声检查,测算内-中膜厚度及斑块积分,并与1162名正常对照人群进行对比分析.结果 高血压前期人群颈动脉粥样硬化发生率增高,颈动脉内-中膜厚度（IMT）及斑块积分增加,与正常对照人群比较差异均具有统计学意义.高血压前期人群颈动脉粥样硬化斑块的检出率为45.3％,其中软斑占68.9％,混合斑占24.6％,硬斑占6.5％.结论 高频超声能准确检测高血压前期人群颈动脉IMT厚度及斑块形成情况,有利于早期辨别高血压前期高危人群.

Assessment of carotid intima-media thickness and arterioles atherosclerosis in patients with prehypertension by using high-frequency ultrasound

Objective To investigate carotid intima-media thickness and arterioles atherosclerosis in patients with prehypertension by using high-frequency ultrasound. Methods A total of 1162 healthy controls and 590 prehypertensive patients were enrolled in this investigation. High-frequency ultrasound was used to measure intima-media thickness and evaluate plaque score of the carotid artery. Results In comparison with the healthy controls, the incidence of carotid atherosclerotic plaque and the intima-media thickness of the prehypertensive patients were significantly increased. The detection rate of carotid atherosclerotic plaque was 45.3% in prehypertensive subjects. In addition, mild, moderate or calcified plaque was found in 68.9%, 24.6% and 6.5% patients, respectively. Conclusion High frequency ultrasound could accurately evaluate intima-media thickness and atherosclerotic plaque of the carotid artery, which may be conductive to identify high-risk prehypertensive populations.