Details

Autor(en) / Beteiligte

• Guo, Yongwei
• Hou, Xiaoyi
• Rokohl, Alexander C
• Jia, Renbing
• Heindl, Ludwig M

Titel

Reliability of Periocular Anthropometry: A Comparison of Direct, 2-Dimensional, and 3-Dimensional Techniques

Ist Teil von

• Dermatologic surgery, 2020-09, Vol.46 (9), p.e23-e31

Ort / Verlag

United States: by the American Society for Dermatologic Surgery, Inc. Published by Wolters Kluwer Health, Inc. All rights reserved

Erscheinungsjahr

2020

Quelle

MEDLINE

Beschreibungen/Notizen

• BACKGROUNDThree-dimensional (3D) imaging has become increasingly popular in aesthetic surgery. However, few studies have emphasized its application in the periocular region. OBJECTIVETo provide evidence supporting the reliability of generalizing periocular measurements obtained using caliper-derived direct anthropometry and 2-dimensional (2D) photogrammetry to 3D stereophotogrammetry. MATERIALS AND METHODSPeriocular surfaces were captured using a stereophotogrammetry system for 46 normal Caucasian individuals. Twenty-two periocular variables were directly, 2-dimensionally, and 3-dimensionally measured. Reliability of these measurements was evaluated and compared with each other. RESULTSThe results revealed that, for direct (intra-rater reliability only), 2D, and 3D anthropometry, overall intra-rater and inter-rater intraclass correlation coefficient estimates were 0.88, 0.99 and 0.97, and 0.98 and 0.92, respectively; mean absolute differences were 0.84 mm, 0.26 and 0.36 units, and 0.35 and 0.67 units, respectively; technical error of measurement (TEM) estimates were 0.85 mm, 0.25 and 0.36 units, and 0.32 and 0.65 units, respectively; relative error measurement estimates were 6.46%, 1.69% and 2.74%, and 1.67% and 5.11%, respectively; and relative TEM estimates were 6.25%, 1.62% and 2.78%, and 2.12% and 5.12%, respectively. CONCLUSIONStereophotogrammetry and the authorsʼ landmark location protocol yield very good reliability for a series of 2D and 3D measurements.