Alam M, Höglund C, Thorstrand C
Cardiology Department, Karolinska Institute, South Hospital, Södersjukhuset, Stockholm, Sweden.
Clin Physiol. 1992 Jul;12(4):443-52. doi: 10.1111/j.1475-097x.1992.tb00348.x.
The atrioventricular (AV) plane displacement was studied by echocardiography in 79 subjects (45 healthy subjects and 34 patients with acute myocardial infarction or chronic congestive heart failure). From apical 4- and 2-chamber views the displacement of the AV plane towards the apex in systole was recorded at 4 sites in the left ventricle (LV) corresponding to the septal, anterior, lateral, and posterior walls and the mean value from the above 4 sites (AV-mean) was calculated. In addition, in healthy subjects, the AV plane displacement at right ventricular free wall was also recorded. The AV-mean correlated well with the echocardiographic ejection fraction determined by biplane area-length method (r = 0.96, P less than 0.001). The correlation was also high when the percentage of the left ventricular shortening along the long axis was used (r = 0.97, P less than 0.001). The correlation between ejection fraction and AV-mean was also good when separate analysis was made for the subjects with preserved ejection fraction (r = 0.86, P less than 0.001) and decreased ejection fraction (r = 0.82, P less than 0.001). The right ventricle had a significantly higher AV plane displacement (P less than 0.001) than the LV. The study also includes determination of the muscular excursions of the septal and posterior walls along the short axis of the left ventricle from the parasternal long axis view. The AV plane displacement of the respective walls was relatively greater (P less than 0.001) compared to concentric contractions. The septal and posterior wall excursions along the short axis correlated poorly with the AV plane displacement of the respective walls (r = 0.55, P less than 0.01 and r = 42, P less than 0.05).
通过超声心动图对79名受试者（45名健康受试者以及34名急性心肌梗死或慢性充血性心力衰竭患者）的房室（AV）平面位移进行了研究。从心尖四腔心和两腔心切面记录左心室（LV）中对应于室间隔、前壁、侧壁和后壁的4个部位在收缩期房室平面朝向心尖的位移，并计算上述4个部位的平均值（AV均值）。此外，在健康受试者中，还记录了右心室游离壁的房室平面位移。AV均值与采用双平面面积-长度法测定的超声心动图射血分数相关性良好（r = 0.96，P < 0.001）。当使用左心室沿长轴缩短百分比时，相关性也很高（r = 0.97，P < 0.001）。对射血分数保留的受试者（r = 0.86，P < 0.001）和射血分数降低的受试者（r = 0.82，P < 0.001）进行单独分析时，射血分数与AV均值之间的相关性也很好。右心室的房室平面位移显著高于左心室（P < 0.001）。该研究还包括从胸骨旁长轴切面测定室间隔和后壁沿左心室短轴的肌肉运动。与同心收缩相比，各壁的房室平面位移相对较大（P < 0.001）。室间隔和后壁沿短轴的运动与各壁的房室平面位移相关性较差（r = 0.55，P < 0.01和r = 42，P < 0.05）。
