Basic Study for Computer Analysis of the Pediatric Electrocardiogram: Relation of the Distance-Corrected Precordial Electrocardiographic Voltage with the Echocardiographically Determined Left Ventricular Muscle Volume : Proceedings of the IV Conference on

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The left ventricular muscle volume (LVMV) and the distance from the anterior chest wall to the middle of the left ventricle (D) were determined echocardiographically in 476 children as a part of the Shimane Heart Study. Correlation of the summed precordial voltage (SV_1 + RV_5) with LVMV was not good (r = 0.377 in males and -0.095 in females). The precordial voltage (SV_1 + RV_5 ), therefore, was corrected by the square of D to compensate the diminution of electrical potential by distance. Correlation between D^2 (SV_1 + RV_5 ) and LVMV was good in males (r = 0.712) and relatively good in females (r = 0.469). Moreover, the values of D^2 (SV_1 + RV_5) were different between both sexes at the age of 12-16 years. The thickness of subcutaneous fat may be one of the most important factors for these differences in D^2 (SV_1 + RV_5 ) and correlation coefficient.
社団法人日本循環器学会の論文
1980-11-20