Measurement of breast volume in females: description of a reliable method.

Breast volume measurements were made on 47 adult subjects using a casting method. After drying, fast-setting plaster casts were filled with sand of known density to a level approximating the curvature of the chest wall. The reliability of both sand filling and casting proved to be high, r = 0.97, and r = 0.99, respectively. The total variable error was 10.2%. The effects of position (standing versus lying) was investigated in a separate sample of 15 subjects. No significant difference (P less than 0.05) was found between methods. The relationship between breast volume, girths, skinfolds, and body density was reported to be low.