正常成人乳腺超声背向散射积分的测定

Measurement of breast ultrasonic integral backscatter in healthy adults

目的测定正常成人乳腺超声背向散射积分(IBS),为进一步研究乳腺不同病变的IBS变化提供正常参考值。方法对105例正常成人分为2组:绝经前组(<50岁)79例,绝经后组(>50岁)26例,选取19例乳腺腺瘤患者为对照。检测受检者乳腺的IBS:峰谷值、平均强度和离散度,以其所在深度时间增益补偿均值对实测IBS值进行标化。结果正常成人绝经前后乳腺的标化IBS无统计学差异(P>0.05);正常乳腺平均强度大于乳腺腺瘤(P<0.05),而峰谷值、离散度值无统计学差异(P>0.05)。结论正常成人乳腺的标化IBS值稳定,可重复性好,IBS为无创性判定乳腺组织的疾病提供了新方法。

Objective To measure the breast ultrasonic integrated backscatter（IBS） in healthy adults, and to provide normal reference value of IBS changes in study of different breast diseases. Methods One hundred and five normal adults were divided into two groups, normal group （79 cases, age 〈 50 ）, menopause group （26 cases, age 〉 50）, then 19 patients with mastadenoma were enrolled as control group. Their IBS（ peak value, average intensity and straggling value） was measured , and the value of IBS was standardized by average deep time gain compensation. Results There was no significant difference of IBS between normal group and menopause group （ P 〉 0.05 ）. The average intensity in normal group was more than that in control group （ P 〈 0.05）, while there was no significant difference between peak value and straggling value （ P 〉 0.05）. Conclusion Breast IBS in normal adults is steady, and has good repeatability, it provides a new method in assessment of breast diseases non - invasively.