Evaluation of regional differences in right ventricular systolic function by acoustic quantification echocardiography and cine magnetic resonance imaging
Evaluation of regional differences in right ventricular systolic function by acoustic quantification echocardiography and cine magnetic resonance imaging
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DOI：
10.1161/01.cir.98.4.339
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发表时间：
1998-07-28
期刊：
影响因子：
37.8
通讯作者：
Colan, SD
中科院分区：
文献类型：
--
作者：
Geva, T;Powell, AJ;Colan, SD
背景--右心室复杂的几何结构限制了右心室功能的准确定量评价.尽管胚胎学和解剖学观察表明右心室由两个不同的组成部分组成，即右心室窦和漏斗，但大多数关于右心室尺寸和功能的研究将其视为单腔。本研究的目的是确定TH卷，相对贡献的全球收缩功能，和时间过程中的收缩和舒张的RV窦和infundibulum.Methods和Results-Thirty-one个人没有心脏病（年龄1个月至17岁，16名男孩和15名女孩）参加了这项研究。用声学定量超声心动图和心音描记法研究了20名受试者的瞬时面积随时间的变化、ICS导数以及收缩和舒张的时间过程。在11个个体中，通过电影MRI确定了全球和区域RV体积和射血分数。KV窦占合并RV舒张末期容积的81+/-6%和87+/-4%。漏斗部分别占19+/-6%和13+/-4%（P
Background--Accurate quantitative evaluation of right ventricular (RV) function has been limited by its complex structural geometry. Although embryological and anatomic observations suggest that the RV is composed of 2 distinct components, the RV sinus and infundibulum, most studies on RV dimensions and function viewed it as a single chamber. This study was designed to determine th volumes, relative contribution to global systolic function, and temporal course of contraction and relaxation of the RV sinus and infundibulum.Methods and Results-Thirty-one individuals without heart disease (aged 1 month to 17 years, 16 boys and 15 girls) participated in this study. Instantaneous area over time, ics derivatives, and the temporal course of contraction and relaxation were studied by acoustic quantification echocardiography and phonocardiography in 20 individuals. Global and regional RV volumes and ejection fraction were determined by cine MRI in 11 individuals. The KV sinus made up 81+/-6% of the combined RV end-diastolic volume and 87+/-4% of the combined stroke volume. The infundibulum accounted for the remaining 19+/-6% and 13+/-4% respectively (P