Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, ON, N6A 4V2, Canada.
School of Biomedical Engineering, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada.
Sci Rep. 2020 Aug 24;10(1):14087. doi: 10.1038/s41598-020-70476-2.
Breast shapes are affected by gravitational loads and deformities. Measurements obtained in the standing position may not correlate well with measurements in the supine position, which is more representative of patient position during breast surgery. A dual color 3D surface imaging system capable of scanning patients in both supine and standing positions was developed to evaluate the effect of changes in body posture on breast morphology. The system was evaluated with breast phantoms to assess accuracy, then tested on ten subjects in three body postures to assess its effectiveness as a clinical tool. The accuracy of the system was within 0.4 mm on average across the model. For the human study, there was no effect of body posture on breast volumes (p value > 0.05), but we observed an effect of completeness of breast scans on body posture (p value < 0.05). Post-hoc tests showed that the supine position and the standing position with hands at the waist differed significantly (p value < 0.05). This study shows that the system can quantitatively evaluate the effect of subject postures, and thereby has the potential to be used to investigate peri-operative changes in breast morphology.
乳房形状受到重力负荷和畸形的影响。站立位获得的测量值可能与仰卧位的测量值相关性较差，而仰卧位更能代表乳房手术期间患者的体位。为了评估体位变化对乳房形态的影响，开发了一种能够在仰卧位和站立位扫描患者的双色 3D 表面成像系统。该系统使用乳房模型进行了评估，以评估其准确性，然后在三种体位下对十名受试者进行了测试，以评估其作为临床工具的有效性。系统在模型上的平均精度在 0.4mm 以内。对于人体研究，体位对乳房体积没有影响（p 值>0.05），但我们观察到乳房扫描的完整性对体位有影响（p 值<0.05）。事后检验显示，仰卧位和双手放在腰部的站立位差异显著（p 值<0.05）。本研究表明，该系统可以定量评估受试者体位的影响，因此有可能用于研究乳房形态的围手术期变化。
