Repeatability and Reproducibility of Macular Hole Size Measurements Using Optical Coherence Tomography



Baumann, Carmen ORCID: 0000-0001-8662-0582, Almarzooqi, Ahmed, Blobner, Katharina, Zapp, Daniel, Kirchmair, Katharina, Schwer, Lydia S, Lohmann, Chris P and Kaye, Stephen B ORCID: 0000-0003-0390-0592
(2021) Repeatability and Reproducibility of Macular Hole Size Measurements Using Optical Coherence Tomography. Journal of Clinical Medicine, 10 (13). 2899 - 2899.

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Abstract

<jats:p>The purpose of this study was to assess the repeatability and reproducibility of measuring the minimum linear diameter (MLD) of macular holes (MHs) using horizontal linear and radial scan modes in optical coherence tomography (OCT). Patients with concurrent sets of radial and horizontal linear OCT volume scans were included. The MLD was measured twice in both scan modes by six raters of three different experience levels (groups). Outcome measures were the reliability and repeatability of MLD measurements. Fifty patients were included. Mean MLD was 317.21(±170.63) µm in horizontal linear and 364.52 (±161.71) µm in radial mode, a difference of 47.31 (±26.48) µm (p &lt; 0.001). In the radial scan mode, MLD was identified within 15° of the horizontal meridian in 27% and within 15° of the vertical meridian in 26.7%, with the remainder (46.3%) in oblique meridians. The intra-group coefficients of repeatability (CR) for horizontal linear mode were 23 µm, 33 µm and 45 µm, and for radial mode 25 µm, 44 µm and 57 µm for groups 1, 2 and 3, respectively. The inter-group CR, taking group 1 as reference standard for groups 2 and 3, were 74 µm and 71 µm for the linear mode, and 62 µm and 78 µm for radial mode. The radial mode provides good repeatability and reliability for measurement of MLD. In a majority of cases the MLD does not lie in the horizontal meridian and would be underestimated using a horizontal OCT mode.</jats:p>

Item Type: Article
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences
Depositing User: Symplectic Admin
Date Deposited: 01 Jul 2021 15:18
Last Modified: 29 Sep 2021 20:10
DOI: 10.3390/jcm10132899
Open Access URL: https://www.mdpi.com/2077-0383/10/13/2899
URI: https://livrepository.liverpool.ac.uk/id/eprint/3128453