Wyatt H L, Heng M K, Meerbaum S, Gueret P, Hestenes J, Dula E, Corday E
Circulation. 1980 Jun;61(6):1119-25. doi: 10.1161/01.cir.61.6.1119.
Cross-sectional echocardiography was used to quantify volume in 21 canine left ventricles that were fixed in formalin and immersed in mineral oil. Area, length and diameter measurements were obtained from short- and long-axis cross-sectional images of the left ventricle and volume was calculated by seven mathematic models. Calculated volume was then compared, by linear regression and percent error analyses, with fluid volume of the left ventricle, obtained by filling the chamber with a known amount of fluid. Volumes ranged from 13-146 ml. Mathematic models using short-axis area and long-axis length gave higher correlation coefficients (r = 0.982 and r = 0.969) and lower mean errors (10-20%) than standard formulas previously used for M-mode echo and angiography. Thus, short-axis area analysis with cross-sectional echocardiography is well-suited for quantifying left ventricular volumes in dogs.
采用横断面超声心动图对21个固定于福尔马林并浸于矿物油中的犬左心室进行容积定量。从左心室的短轴和长轴横断面图像获取面积、长度和直径测量值，并通过7种数学模型计算容积。然后，通过线性回归和百分比误差分析，将计算得到的容积与通过向心腔内注入已知量液体获得的左心室液体容积进行比较。容积范围为13 - 146毫升。与先前用于M型超声心动图和血管造影的标准公式相比，使用短轴面积和长轴长度的数学模型具有更高的相关系数（r = 0.982和r = 0.969）和更低的平均误差（10 - 20%）。因此，横断面超声心动图的短轴面积分析非常适合于定量犬的左心室容积。
