Department of Aesthetic and Plastic Breast Surgery, Plastic Surgery Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, No. 33, Badachu Road, Shijingshan District, Beijing, 100144, China.
Aesthetic Plast Surg. 2014 Feb;38(1):115-119. doi: 10.1007/s00266-013-0247-5. Epub 2013 Dec 13.
Measurement of volumetric change after aesthetic and reconstructive breast surgery is of great significance to plastic surgeons. This study aimed to investigate the influence of respiration on measurement of breast volumetric change via a three-dimensional (3D) scanning technique.
In this study, ten augmentation mammaplasty patients received preoperative 3D scanning in different respiration states at three time points: the end of normal exhalation (ENE1), the end of normal inhalation (ENI), and the end of normal exhalation again (ENE2). Using Geomagic Studio 12 software, breast volumetric change error (BVCE) was measured between the ENE1 scan and the ENI scan (R1) and between the ENE1 scan and ENE2 scan (R2). Three-dimensional deviation, defined as the shortest distance from one scan to any point on the other scan, was measured in R1 and R2. A paired-sample t test was used to compare the means of BVCE and the 3D deviation between R1 and R2. Pearson's correlation coefficient was calculated between 3D deviation and BVCE. For the analysis, SPSS program version 16 was used. Differences were considered statistically significant at P values lower than 0.05.
The mean breast volume was 352.3 ± 52.7 ml, and BVCE was significantly lower in R1 than in R2 (9.7 vs. 21.3 ml; P = 0.000). The 3D deviation was significantly higher in R2 than in R1 (1.600 vs. 0.887; P = 0.000). In the analysis, BVCE was not correlated significantly with 3D deviation in R1 (P = 0.157) but was significantly correlated with 3D deviation in R2 (correlation coefficient = 0.766; P = 0.000).
Keeping patients in the same respiration state is crucial for accurate measurement of breast volumetric change via the 3D scanning technique.
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测量美容和重建乳房手术后的体积变化对整形外科医生具有重要意义。本研究旨在通过三维（3D）扫描技术研究呼吸对乳房体积变化测量的影响。
在这项研究中，十名隆胸患者在三个时间点分别接受了不同呼吸状态下的术前 3D 扫描：正常呼气末（ENE1）、正常吸气末（ENI）和再次正常呼气末（ENE2）。使用 Geomagic Studio 12 软件，测量了 ENE1 扫描与 ENI 扫描之间（R1）和 ENE1 扫描与 ENE2 扫描之间（R2）的乳房体积变化误差（BVCE）。在 R1 和 R2 中测量了三维偏差，定义为从一次扫描到另一次扫描上任意一点的最短距离。采用配对样本 t 检验比较 R1 和 R2 之间的 BVCE 和 3D 偏差的平均值。计算了 3D 偏差与 BVCE 之间的 Pearson 相关系数。使用 SPSS 程序版本 16 进行分析。P 值小于 0.05 被认为具有统计学意义。
乳房平均体积为 352.3±52.7ml，R1 中的 BVCE 明显低于 R2（9.7 比 21.3ml；P=0.000）。R2 中的 3D 偏差明显高于 R1（1.600 比 0.887；P=0.000）。在分析中，R1 中的 BVCE 与 3D 偏差无显著相关性（P=0.157），但 R2 中的 BVCE 与 3D 偏差显著相关（相关系数=0.766；P=0.000）。
保持患者在相同的呼吸状态对于通过 3D 扫描技术准确测量乳房体积变化至关重要。
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