三维扫描技术检测呼吸状态对乳房整形术后体积变化的影响

目的：通过三维扫描技术，检测呼吸状态对乳房整形术后体积变化的影响。方法自2010年1月至2010年12月，随机选取20例假体隆乳术后患者作为研究对象，在不同呼吸状态下接受3次乳房三维扫描：自然呼气末（Scan 1）、自然吸气末（Scan 2）和自然呼气末（Scan 3）。使用计算机软件测量Scan 1和Scan 3之间（R1）、Scan 1和Scan 2之间（R2）的乳房体积变化和三维偏差，并检测乳房体积变化与三维偏差的相关系数。结果本组术后乳房平均体积为（354.1±53.9） mL；R1的乳房体积变化和三维偏差均明显小于R2（9.9 mL VS 22.7 mL，P〈0.05；0.9 mm VS 1.7 mm，P〈0.05）；R1的乳房体积变化与三维偏差无明显相关（P〉0.05），但是R2的乳房体积变化与三维偏差明显正相关，相关系数为0.766（P〈0.05）。结论保持乳房三维扫描时呼吸状态的一致性，对于准确测量乳房体积变化具有重要意义。

The Influence of Respiration on Breast Volume after Augmentation Mammaplasty by Three-dimensional Scanning

Objective To investigate the influence of respiration on breast volume after augmentation mammaplasty by 3D scanning. Methods From January 2010 to December 2010, twenty patients after augmentation mammaplasty were received pre-operative 3D scanning in different respiration states respectively： in the end of normal exhalation （Scan 1）, in the end of normal inhalation （Scan 2） and in the end of normal exhalation again （Scan 3）. By using Geomagic Studio 12 software, breast volumetric change and 3D deviation were measured between Scan1 and Scan 3 （R1）, also between Scan 1 and Scan 2 （R2）. Pearson＇s correlation coefficient was calculated between 3D deviation and breast volumetric change. Results The mean breast volume of all the patients was （354.1±3.9） ml. Breast volumetric change and 3D deviation in R1 were both significantly lower than in R2 （9.9 ml VS 22.7 ml, P〈0.05; 0.9 ml VS 1.7ml, P〈0.05）. Breast volumetric change was not correlated with 3D deviation in R1 （P〉0.05） while it was correlated with 3D deviation in R2 significantly with the correlation coefficient as 0.766 （P〈0.05）. Conclusion Keeping patients in the same respiration state is crucial to accurate measurement of breast volume by 3D scanning.