研究目的：

1、利用3D体表成像技术精确测量大腿体积、周长相关参数。

2、验证3D体表成像技术用于量化大腿吸脂疗效的可行性。

3、基于大腿周长、体积参数进行左右腿对称性评价。

4、利用3D体表成像技术证实吸脂手术对于腿部塑形的确切疗效。

方法:

回顾性纳入19例接受双侧大腿脂肪抽吸术的患者，采集患者术前术后的 3D 成像数据，对术前术后的体积、体积变化率及上、中、下三个平面的周长、周长变化率等数据做统计学分析，对左右腿之间的相关参数进行一致性检验，分别对BMI同大腿体积变化率、BMI同各平面周长变化率进行回归分析。

结果：

手术显著性方面，与术前相比，19例患者（38条大腿）的术后体积及三个平面周长均发生显著变化，总体积变化率达到了16.90% ± 5.55%，各平面总周长变化率分别为10.32 ± 4.14%、 9.40 ± 2.90%、 6.16 ± 2.59%, 且大腿体积变化率同上段周长变化率存在相关性；术后外观方面，数据支持术后左右腿之间具有对称性。

结论：

使用3D体表成像技术测量大腿体积及周长，首次将该技术用于量化大腿脂肪抽吸术的临床疗效，并利用体积及周长参数验证了左右腿之间的对称性，利用该技术证实吸脂手术对于腿部塑形的确切疗效。

Research Purpose :

Accurately measure thigh volume and circumference with the help of 3D surface imaging technology.

To verify the feasibility of 3D surface imaging technology for quantifying the efficacy of thigh liposuction.

3. The symmetry of left and right thighs was evaluated based on the parameters of thigh circumference and volume.

Confirm the exact effort of liposuction on thigh shaping using 3D surface imaging technology.

Methods: 

This retrospective study involved the three-dimensional images of 19 patients who underwent bilateral thigh liposuction. Data such as volume change and volume change rate before and after surgery, circumference change, and circumference change rate of three planes (upper, middle, and lower) were analyzed. The correlation between BMI and volume change rate  were determined.

Results: 

There were significant differences between the preoperative and postoperative volume and circumference of three planes of 19 patients (38 thighs). The rate of change in total volume (16.90 ± 5.55%) correlated with the circumference change rate at the top of the thigh. There was also a linear relationship between BMI and volume change rate, but not between pre-operative circumference and circumference change rate.

Conclusion: 

The 3D body surface imaging technology was used to measure the thigh volume and circumference. This technology was used for the first time to quantify the clinical effect of thigh liposuction. The symmetry between the left and right thighs was verified by the volume and circumference parameters.