Automated quantification of posterior vitreous inflammation: optical coherence tomography scan number requirements.
Terheyden, Jan Henrik Ometto, Giovanni Montesano, Giovanni Wintergerst, Maximilian W M Langner, Magdalena Liu, Xiaoxuan Keane, Pearse A Crabb, David P Denniston, Alastair K Finger, Robert P
Terheyden, Jan Henrik
Ometto, Giovanni
Montesano, Giovanni
Wintergerst, Maximilian W M
Langner, Magdalena
Liu, Xiaoxuan
Keane, Pearse A
Crabb, David P
Denniston, Alastair K
Finger, Robert P
Abstract
Quantifying intraocular inflammation is crucial in managing uveitis patients. We assessed the minimum B-scan density for reliable automated vitreous intensity (VI) assessment, using a novel approach based on optical coherence tomography (OCT). OCT volume scans centered on the macula were retrospectively collected in patients with uveitis. Nine B-scans per volume scan at fixed locations were automatically analyzed. The following B-scan selections were compared against the average score of 9 B-scans per volume scan as a reference standard: 1/3/5/7 central scans (1c/3c/5c/7c), 3 widely distributed scans (3w). Image data of 49 patients (31 females) were included. The median VI was 0.029 (IQR: 0.032). The intra-class-correlation coefficient of the VI across the 9 B-scans was 0.923. The median difference from the reference standard ranged between 0.001 (7c) and 0.006 (1c). It was significantly lower for scan selection 3w than 5c, p(adjusted) = 0.022, and lower for selection 7c than 3w, p(adjusted) = 0.003. The scan selections 7c and 3w showed the two highest areas under the receiver operating curve (0.985 and 0.965, respectively). Three widely distributed B-scans are sufficient to quantify VI reliably. Highest reliability was achieved using 7 central B-scans. Automated quantification of VI in uveitis is reliable and requires only few OCT B-scans.
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Date
2021-02-08
Type
Article
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Citation
Terheyden JH, Ometto G, Montesano G, Wintergerst MWM, Langner M, Liu X, Keane PA, Crabb DP, Denniston AK, Finger RP. Automated quantification of posterior vitreous inflammation: optical coherence tomography scan number requirements. Sci Rep. 2021 Feb 8;11(1):3271. doi: 10.1038/s41598-021-82786-0
Journal / Source Title
Scientific Reports
DOI
10.1038/s41598-021-82786-0
PMID
33558619
Publisher
Nature Publishing Group
Publisher’s URL
http://www.nature.com/srep/index.html