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三尖瓣环平面多普勒组织成像对高血压病患者右室早期舒张功能检测的临床意义 被引量:1

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摘要 目的:探讨诊断原发性高血压病患者右室早期舒张功能异常的方法,为临床早期诊断和治疗提供可靠的依据。方法:采用多普勒组织成像技术(DTI)对50例原发性高血压病患者三尖瓣环平面不同位点进行检测,记录右室局部心肌的运动情况并与脉冲多普勒测三尖瓣血流的方法进行比较。结果:高血压病患者右室舒张早期最大运动速度(Em)降低,而舒张晚期最大运动速度(Am)升高,Em/Am比值下降,与对照组比较差异有显著性(P<0.01);高血压组间Em值呈递减趋势,而Am值呈递增趋势,且高血压Ⅱ组(心肌肥厚组)Em/Am<1的位点数明显大于高血压Ⅰ组(心肌正常组)(P<0.01);DTI检测Em/Am<1的检出率明显高于脉冲多普勒峰值流速比值(E/A)<1的检出率。结论:DTI技术能更早、更敏感、更准确地检测出右室舒张功能受损程度,且无创、简便,可作为临床评价高血压病患者右室局部早期舒张功能的可靠方法。
出处 《实用医学杂志》 CAS 2008年第13期2273-2275,共3页 The Journal of Practical Medicine
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