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目的: 应用彩色室壁运动技术(CK) 定量评价存在收缩功能异常的陈旧心肌梗塞患者的左室局部和整体舒张功能。方法: 19 例心肌梗塞患者 (左室射血分数: 34.9±5.89% ) 和21 例正常人进行了CK 检测, 同时记录二尖瓣血流频谱。CK 测量参数: 左室壁各节段全舒张期及前1/3 舒张期心内膜位移(DEM, 1/3DEM), 前1/3 舒张期心内膜位移分数 (1/3DEMF); 全舒张期、前1/3 及后2/3 舒张期心内膜位移平均速度 (VDEM, 1/3 VDEM , 2/3VDEM)。二尖瓣血流频谱主要记录1/3 充盈分数 (1/3FF)。根据二维定性方法对运动正常、运动减弱和运动消失三种室壁运动状态CK 测量。结果: 运动正常节段: DEM8.89±1.21m m , VDEM2.30±0.76cm /s; 运动减弱节段: DEM4.56±0.53m m , VDEM1.89±0.35cm /s; 运动消失节段: DEM2.13±0.45m m , VDEM0.95±0.07cm /s; 三种不同室壁运动状态间的DEM、VDEM均存在显著性差异 (P< 0.0001)。运动正常节段的1/3VDEM 显著快于2/3VDEM (4.56±1.18cm /s vs 1.26±0.34cm /s, P< 0.0001); 运动减弱节段的1/3 VDEM 略快于2/3VDEM (2.14±0.66cm /s vs 1.76±0.47cm /s, P< 0.05); 而运动消失节段的1/3 VDEM显著低于2/3 VDEM (1.23±0.52cm /s vs 1.37±0.30cm /s, P<0.0001)。正常组的1/3FF和1/3DEMF (r=
Objective: To quantitatively evaluate left ventricular regional and global left ventricular diastolic function in patients with old myocardial infarction with abnormal systolic function by color wall motion technique (CK). Methods: CK was detected in 19 patients with myocardial infarction (left ventricular ejection fraction: 34.9 ± 5.89%) and 21 normal subjects. The mitral flow was recorded at the same time. CK measurement parameters: left ventricular wall segments of all diastolic and the former 1/3 diastolic endocardial displacement (DEM, 1 / 3DEM), the former 1/3 diastolic endocardial displacement (1 / 3DEMF); Diastolic, anterior 1/3 and posterior 2/3 diastolic endocardial displacement average velocity (VDEM, 1/3 VDEM, 2 / 3VDEM). Mitral flow spectrum mainly records 1/3 filling fraction (1 / 3FF). According to two-dimensional qualitative method, normal exercise, reduced exercise and loss of motion of three kinds of wall motion state CK measurements. Results: The normal segments of exercise: DEM8.89 ± 1.21mm, VDEM2.30 ± 0.76cm / s; weakened motion segments: DEM4.56 ± 0.53mm, VDEM1.89 ± 0.35cm / s; motion loss segments: DEM2 .13 ± 0.45mm and VDEM0.95 ± 0.07cm / s respectively. There were significant differences in DEM and VDEM between the three different wall motion states (P <0.0001). The 1 / 3VDEM of the normal segment of motion was significantly faster than 2 / 3VDEM (4.56 ± 1.18cm / s vs. 1.26 ± 0.34cm / s, P <0.0001); the 1/3 VDEM of the motion-attenuating segment was slightly faster than 2 / 3VDEM 2.14 ± 0.66cm / s vs 1.76 ± 0.47cm / s, P <0.05), while the 1/3 VDEM in the disappearing segments was significantly lower than 2/3 VDEM (1.23 ± 0.52cm / s vs 1.37 ± 0.30cm / s , P <0.0001). The normal group of 1 / 3FF and 1 / 3DEMF (r =