Department of Ophthalmology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Eye Center, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
Department of Ophthalmology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
J Plast Reconstr Aesthet Surg. 2021 Aug;74(8):1888-1899. doi: 10.1016/j.bjps.2020.12.003. Epub 2020 Dec 9.
The measurement of anatomical structures is critical in plastic and reconstructive surgery. However, few detailed and standardized measurements have been widely used in the periorbital region. This study aimed to evaluate the feasibility of a novel detailed and standardized protocol with 2D and 3D technologies, and explore the relationship between them and direct measurements.
Fifty healthy Caucasians (100 eyes) between 20 and 68 years old were recruited and captured for 3D photographs by VECTRA M3 3D Imaging System. Subsequently, 24 landmarks were located on each 3D photographs following a standardized protocol, and then 19 linear and 3 angular periorbital variables were measured. Furthermore, two-dimensional (2D) and direct measurements were conducted on each subject and compared with 3D measurements and one another.
The grand r means across all measurements were 0.77, 0.78, and 0.88 for direct vs. 2D values, direct vs. 3D values, and 3D vs. 2D values, respectively. The mean absolute differences were 1 mm (ranging from 0.2 mm to 3.7 mm) between direct and 3D measurements, 1 mm (ranging from 0.04 mm to 2.4 mm) between direct and 2D measurements, and 1 mm and 6.6° (ranging from 0.04 mm or 0.5° to 3 mm or 12.8°) between 2D and 3D measurements.
This study verified the feasibility of this detailed and standardized landmark localization protocol for assessing the periorbital morphology with 2D and 3D technologies. This protocol may work as a bridge communicating with all studies involving any of the three technologies in the future.
解剖结构的测量在整形和重建外科中至关重要。然而，在眼眶区域，很少有详细和标准化的测量方法得到广泛应用。本研究旨在评估一种新的详细和标准化方案的可行性，该方案结合了 2D 和 3D 技术，并探讨它们与直接测量之间的关系。
招募了 50 名 20 至 68 岁的健康白种人（100 只眼），并使用 VECTRA M3 3D 成像系统对其进行 3D 摄影。随后，根据标准化方案在每幅 3D 照片上定位 24 个标志点，并测量 19 个线性和 3 个角度的眶周变量。此外，对每个受试者进行二维（2D）和直接测量，并与 3D 测量值进行比较。
所有测量值的总体 grand r 值分别为直接测量值与 2D 值、直接测量值与 3D 值以及 3D 值与 2D 值的 0.77、0.78 和 0.88。直接测量值与 3D 值之间的平均绝对差值为 1mm（范围为 0.2mm 至 3.7mm），直接测量值与 2D 值之间的平均绝对差值为 1mm（范围为 0.04mm 至 2.4mm），2D 值与 3D 值之间的平均绝对差值为 1mm 和 6.6°（范围为 0.04mm 或 0.5°至 3mm 或 12.8°）。
本研究验证了使用 2D 和 3D 技术评估眶周形态的详细和标准化标志点定位方案的可行性。该方案可作为未来涉及这三种技术中任何一种技术的所有研究之间的桥梁。
