超声评价老年高血压病左室收缩及舒张功能参数的研究  

Evaluation of the Ultrasonic Parameters Commonly Used for the Assessment of Left Ventricular Systolic and Diastolic Functions in Elderly Patients with Hypertension

作　　者：王纯杰[1] 高锐[1] 潘翠珍[2] 

机构地区：[1]上海市普陀区人民医院超声科,200060 [2]复旦大学附属中山医院上海市心血管病研究所,上海200032

出　　处：《中国医学影像学杂志》2008年第4期266-269,共4页Chinese Journal of Medical Imaging

摘　　要：目的:应用定量组织速度成像技术(QTVI)评价老年高血压病患者的左室收缩及舒张功能。材料和方法:应用定量组织速度成像技术测定20例健康老年人及50例老年高血压患者左室各节段收缩期峰值速度(Vs)、达峰时间(Ts)、快速充盈期、心房收缩期的心肌运动速度Ve、Va和Ve/Va比值。比较两组间的差异并进行显著性检验。结果:高血压组基底段前间隔、前壁及中间段左室前壁、后壁的心肌收缩期峰值速度较正常组低(P<0.05),高血压组基底段后间隔、侧壁、后壁的心肌达峰时间较正常组慢(P<0.05)。高血压组其底段左室前壁、后壁及下壁Ve低于正常组(P<0.01,P<0.05),基底段后间隔、后壁及下壁Va低于正常组(P<0.05),中间段后间隔、后壁Ve及Va均低于正常组(P<0.05),Ve/Va比值与正常组比较,差异无显著性意义(P>0.05)。结论:QTVI可于同一时相对不同的节段心肌进行多点取样,获得局域性心肌运动速度曲线,为评价左室整体和局域性收缩及舒张功能提供了新手段,但对于老年高血压患者根据Ve/Va比值无法评判局域性舒张功能。Purpose： Quantitative tissue Doppler imaging （QTVI）for left ventricviar（LV） systolic and diastolic function evaluation in old patients with hypertention was studied. Materials and Methods： In 50 old patients with myocardium hypertrophy and in 20 old healthy people with similar age and heart rate, peak systolic velocity（ Vs）, peak systolic time （Ts） , and the peak velocity of LV regional myocardium during early diastole （Ve） and atrial contraction （Va）, Ve/Va ratio were assessed and compared by quantitative tissue Doppler imaging. Results： Compared with the healthy people, the patients with hypertension showed lower Ve at anterior, post and inferior walls （P 〈 0.01, P 〈 0.05） and Va（ late diastolic） at post interventricular septum, posterior and inferior walls （ P 〈 0.05 ） in mitral valve level, and lower Ve and Va at post interventricualr septum and posterior wall in papillary muscle level （ P 〈 0.05 ）. The Ve/Va ratio was not significantly different between the two groups （P 〉 0.05）. Conclusion： QTVI was a rapid, comprehensive, and valuable method to quantitatively assess LV regional diastolic function, but the Ve/Va ratio was of limited value.

关 键 词：定量组织速度成像 高血压病 左心室收缩及舒张功能 

分 类 号：R540.45[医药卫生—心血管疾病]