Roostaeian Jason, Adams William P
Dr Roostaeian is an assistant clinical instructor in the Division of Plastic Surgery at the University of California-Los Angeles.
Dr Adams is an Associate Clinical Professor of Plastic Surgery at the University of Texas Southwestern Medical School, Dallas
Aesthet Surg J. 2014 Aug;34(6):857-75. doi: 10.1177/1090820X14538805. Epub 2014 Aug 1.
For patients considering breast augmentation, 3-dimensional (3D) imaging provides a preoperative simulation of the postoperative result. However, the clinical accuracy of these simulations has not been assessed.
The authors compared preoperative simulations with postoperative results of breast augmentation to permit more informed decisions about breast augmentation.
To determine differences between simulations and actual results, volumetric and contour analyses were performed for patients who underwent 3D imaging both preoperatively and 3 months after breast augmentation. All patients received round smooth silicone implants or anatomically shaped cohesive silicone gel implants; the mean volume was 295 cc.
Twenty patients (40 breasts) underwent 3D imaging both pre- and postoperatively. There were no procedural complications or revisions. The mean difference between preoperative simulation and postoperative breast volume was 27.2 cc (range, 1.4-99.5 cc), representing a 9.2% mean difference in volume and an accuracy of 90.8%. The mean absolute difference (root mean square) of all surface points along the breast in aggregate was 4.0 mm (range, 1.8-8.3 mm). No specific location along the surface contour of the breast could be identified as having the greatest differences.
The preoperative simulation provided by 3D imaging is >90% accurate in predicting postoperative breast volume. The mean absolute differential for surface contour in this study was 4 mm, representing 98.4% accuracy based on average surface area.
对于考虑隆胸的患者，三维（3D）成像可提供术后结果的术前模拟。然而，这些模拟的临床准确性尚未得到评估。
作者比较了隆胸术前模拟与术后结果，以便对隆胸做出更明智的决策。
为了确定模拟结果与实际结果之间的差异，对术前及隆胸术后3个月均接受3D成像的患者进行了容积和轮廓分析。所有患者均接受圆形光滑硅胶植入物或解剖形状的粘性硅胶凝胶植入物；平均体积为295立方厘米。
20例患者（40个乳房）术前后均接受了3D成像。未出现手术并发症或修复情况。术前模拟与术后乳房体积的平均差异为27.2立方厘米（范围为1.4 - 99.5立方厘米），体积平均差异为9.2%，准确率为90.8%。乳房整体所有表面点的平均绝对差异（均方根）为4.0毫米（范围为1.8 - 8.3毫米）。乳房表面轮廓上没有特定位置被确定为差异最大的部位。
3D成像提供的术前模拟在预测术后乳房体积方面准确率>90%。本研究中表面轮廓的平均绝对差异为4毫米，基于平均表面积计算准确率为98.4%。
3级
