A study on the various diameters of the heart and frontal cardiac area

Kim, B S; Choo, D W

Abstract

Cardiac measurement by radiographic by radiographic method is the most acurate procedure by which physicianscan obtaine data regarding cardiac size in life. In order to determine the standard values among Koreans, cardiacmensuration by the radiographic frontal cardiac area method was carried out on 225 healthy Korean infants, 111 of whom were males and 114 were females. The results were as follows; 1. Transverse diameter at one month of age is 4.56±0.12 cm in male and 5.00±0.19 cm in female and at eleven months of age 7.35±0.12 cm in male, 7.42±0.09 cm in female. 2. Broad diameter at one month of age is 3.94±0.15 cm in male and 4.53±0.19 cm in female and at eleven months of age 5.82±0.14 cm in male, 5.94±0.14 cm in female. 3. Long diameter at one month of age is 3.94±0.15 cm in male and 5.30±0.23 cm in female and at eleven months of age 7.67±0.15 cm in male, 7.55±0.11 cm in female. 4. The obliquity of the cardiac axis shows no significant difference in age and sex. The range of the measurementsare between 31degrees and 37degrees. 5. Frontal cardiac area at one month of age is 14.36±1.11 cm2 in male and 18.97±0.14 cm2 in female and at eleven months of age 35.27±1.21 cm2 in male, 35.43±0.45 cm2 in female. 6. In every diameter and frontal cardiac area, except the obliquity of the cardiac axis, show greater value in female at the age of 1 month, but show almost same value in male as in female at the age of 11 months.