应用三维扫描技术测量分析假体隆乳术后乳房形态变化的研究

Measurements and analysis of breast morphology changes after breast augmentation by 3D scanning

目的 应用三维扫描技术准确客观地测量并分析隆乳术后乳房三维形态的变化。方法 双侧隆乳者18例（36只乳房），均为圆形硅凝胶假体，采用胸肌下平面置入。假体体积平均为232．2ml，高度平均为3．46cm，其中低突型12只（h〈3．0cm），中突型16只（3．0≤h＜4．0cm），高突型8只（h≥4．0cm）。应用三维扫描仪采集术前及手术后1个月后的乳房三维图像，并用Geomagicl0．0软件测量乳房体积、突度、对称性等参数。结果 获得隆乳前后36只乳房的体积、突度等参数。术后乳房增加的体积与假体体积基本相当（P〉0．05），乳房突度的增加值小于假体高度，术后乳房突度比预期突度（术前突度＋假体高度）减少12．9％，其中低型、中突型、高突型分别为5．2％、15．1％、20．2％。结论 三维扫描技术能在临床上简便、快捷、准确、非接触性地测量乳房的三维形态，为术前设计及术后评估提供科学性的指导，是理想的乳房形态测量工具。

Objective To evaluate the application of three-dimensional （3D） scanning in the measure- ments and analyses of breast morphology changes that occur after breast augmentation. Methods Pre-and post-operative breast 3 D images were obtained in 18 patients （36 breasts） undergoing augmentation mammaplasty by 3D scanning. All implants were round sillieone and planted under pectoral muscle. Average implant volume was 232.2 mL, and average projection was 3.46 cm. The number of implants in low profile implant group was 12 （h 〈 3.0 cm）, and 16 in moderate group （3.0 ≤ h 〈 4.0 cm）, 8 in high group （h ≥4.0 em）. The following parameters were measured by Geomagic 10.0 ： volume, projection, angle and distance of key landmarks, and symmetry degree. Results The increased volume of breast was corresponding with the implant volume （P 〉0.05）. Postoperative breast projection was 12.9 %, less than expected projection （preoperative ＋ implant projection）. The values in low, moderate, and high profile group were 5.2 % , 15.1% , and 20.2 % , respectively. Conclusion 3D scanning is a quick, convenient, accurate and non-contact method for measurement of breast morphology, and it is promising in breast plastic surgery in the future.