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Reliability of Stereophotogrammetry for Area Measurement in the Periocular Region.

Abstract：

:Three-dimensional (3D) stereophotography area measurements are essential for describing morphology in the periocular region. However, its reliability has not yet been sufficiently validated. The objective of this study was to evaluate the reliability of 3D stereophotogrammetric area measurements in the periocular region. Forty healthy volunteers had five flat paper objects placed at each of the seven periocular positions including the endocanthion and the upper medial, upper middle, upper lateral, lower medial, lower middle, and the lower lateral eyelid. Two series of photographic images were captured twice by the same investigator. Each image of the first series was measured twice by the same rater, while images of both series were measured once by a second rater. Differences between these measurements were calculated, and the intrarater, interrater, and intramethod reliability was evaluated for intraclass correlation coefficients (ICCs), mean absolute differences (MADs), technical errors of measurements (TEMs), relative errors of measurements (REMs), and relative TEM (rTEM). Our results showed that 21.2% of all ICCs were considered as excellent, 45.5% were good, 27.3% were moderate, and 6.1% were poor. The interrater ICC for the endocanthion location was 0.4% on a low level. MAD values for all objects were less than 0.3 mm2, all TEM were less than 1 mm2, the REM and rTEM were less than 2% for all objects, showing high reliability. 3D stereophotogrammetry is a highly reliable system for periocular area measurements and may be used in the clinical routine for planning oculoplastic surgeries and for evaluating changes in periocular morphology.Level of Evidence IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

journal_name

Aesthetic Plast Surg

journal_title

Aesthetic plastic surgery

authors

Liu J,Rokohl AC,Guo Y,Li S,Hou X,Fan W,Formuzal M,Lin M,Heindl LM

doi

10.1007/s00266-020-02091-5

subject

Has Abstract

pub_date

2021-01-15 00:00:00

eissn

0364-216X

issn

1432-5241

pii

10.1007/s00266-020-02091-5

pub_type

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Reliability of Stereophotogrammetry for Area Measurement in the Periocular Region.