面部三维表面成像的精确性：在尸体模型中进行的手持式扫描仪比较。

Precision in 3-Dimensional Surface Imaging of the Face: A Handheld Scanner Comparison Performed in a Cadaveric Model.

机构信息

Department for Hand, Plastic and Aesthetic Surgery, Ludwig - Maximilian University, Munich, Germany.

Department of Medical Education, Albany Medical College, Albany, NY.

出版信息

Aesthet Surg J. 2019 Mar 14;39(4):NP36-NP44. doi: 10.1093/asj/sjy242.

DOI:10.1093/asj/sjy242

PMID:30239592

Abstract

BACKGROUND

Handheld 3-dimensional surface imaging (3DSI) devices of various precision are becoming more versatile in their applications and more widely accepted by clinicians for documentation.

OBJECTIVES

The authors sought to compare the precision of facial volumetric change measurements of 3 3DSI devices in the cadaveric model: Eva (Artec 3D Inc., Luxembourg), Sense (3D Systems, Rock Hill, SC), and iSense (3D Systems, Rock Hill, SC).

METHODS

A total of 336 scanning and analysis procedures were carried out in 4 cephalic specimens (mean age, 77.25 ± 24.3 years; mean BMI, 21.76 ± 6.6 kg/m2). Two superficial and 2 supraperiosteal regions of interest were injected with 0.5-cc aliquots and subsequently scanned using the 3 different scanners. Correlation coefficients between the injected and measured volume were computed.

RESULTS

The correlation coefficient for the Eva scanner was for subcutaneous regions of interest rp = 0.935 and for the supraperiosteal regions of interest rp = 0.966, compared with rp = 0.760 and rp = 0.364 (superficial vs supraperiosteal) for the Sense and rp = 0.694 and rp = 0.382 (superficial vs supraperiosteal) for the iSense scanner.

CONCLUSIONS

3DSI devices are capable of measuring surface volume changes of the face at a level of 0.5-cc surface volume change and can thus be regarded as useful tools in the preinterventional, intrainterventional, and postinterventional phases of a treatment. One of the 3 evaluated scanners provided very high correlation coefficients between the injected and the measured volume (Eva), whereas the other evaluated 3DSI devices provided moderate (Sense) and low (iSense) coefficients.

摘要

背景

各种精度的手持式三维表面成像（3DSI）设备在其应用中变得更加通用，并且越来越被临床医生所接受。

目的

作者旨在比较三种 3DSI 设备（Eva（Artec 3D Inc.，卢森堡）、Sense（3D Systems，Rock Hill，SC）和 iSense（3D Systems，Rock Hill，SC））在尸体模型中测量面部容积变化的精度。

方法

对 4 个头骨标本（平均年龄为 77.25 ± 24.3 岁，平均 BMI 为 21.76 ± 6.6 kg/m2）进行了 336 次扫描和分析。将 2 个表面和 2 个骨膜下感兴趣区域注射 0.5 cc 的等分试样，然后使用三种不同的扫描仪进行扫描。计算注射体积与测量体积之间的相关系数。

结果

Eva 扫描仪的相关系数对于皮下感兴趣区域为 rp = 0.935，对于骨膜下感兴趣区域为 rp = 0.966，而 Sense 和 iSense 扫描仪的相关系数分别为 rp = 0.760 和 rp = 0.364（对于表面与骨膜下）以及 rp = 0.694 和 rp = 0.382（对于表面与骨膜下）。

结论

3DSI 设备能够测量面部表面容积变化，在 0.5 cc 表面容积变化的水平上具有较高的精度，因此可以作为治疗的术前、术中和术后的有用工具。在评估的三种扫描仪中，有一个（Eva）提供了非常高的注射体积与测量体积之间的相关系数，而其他两种评估的 3DSI 设备提供了中等（Sense）和低（iSense）的相关系数。