Mammary gland radius measurement and its application in female adults / 中华内分泌外科杂志

ABSTRACT

Objective We invented mammary lump skin-positioning membrane (named scare membrane) to facilitate localization of mammary lump during ultrasound scan.This study is to measure the radius of mammary of Chinese adult women for designing different types of skin-positioning membrane.MethodsThe radius of mammary glands in 236 cases of adult females was detected with color Doppler ultrasound at 5 different clock positions1200,300,600,900 and 1030 or 130.SPSS 16.0 statistical software was used to analyze the data.The cut-off values of mammary glands radius at 99％,95％,75％ and 50％ were calculated.Paired t tests or nonparametric tests (relative sample rank sum tests) were used to verify the consistency of mammary gland radius between left and right sides.ResultsThe cut-off value of 95％ mammary gland radius was7.700cm at 1200,7.810 cm at 1300,8.100 cm at 300,5.330 cm at 600 and 6.300 cm at 900 for left mammary gland ; 7.500 cm at 1200,6.015 cm at 300,5.500 cm at 600,8.510 cm at 900 and 7.930 cm at 1030 for right mammary gland.In comparison of left and right mammary gland radius,the difference had statistical significance between the group of left side at 130 and right side at 1030,the group of left side at 300 and right side at 900(P ＜0.05).The right mamma was relatively larger.The cut-off values of the right mamma at the above two clock points were taken as radius of scale membranes while the average of percentage cut-off values at 1200,300 of both mammas,left side at 900 and right side at 300 are taken as radius of scale membranes.ConclusionsAccording to the cut-off values of 99％,95％,75％ and 50％ radius of adult female mammary glands,mammary lump skin-positioning membrane radius can be classified into 4 size-typesextra large,large,medium and small.The precise classification of radius of mammary scale membranes according to mammary glands of adult females provides convenience for production,manufacture and clinical application of mammary lump skin-positioning membrane.