PMID- 20574022 OWN - NLM STAT- MEDLINE DCOM- 20110113 LR - 20220311 IS - 1552-5783 (Electronic) IS - 0146-0404 (Print) IS - 0146-0404 (Linking) VI - 51 IP - 12 DP - 2010 Dec TI - Reproducibility of spectral-domain optical coherence tomography total retinal thickness measurements in mice. PG - 6519-23 LID - 10.1167/iovs.10-5662 [doi] AB - PURPOSE: To test the reproducibility of spectral-domain optical coherence tomography (SD-OCT) total retinal thickness (TRT) measurements in mice. METHODS: C57Bl/6 mice were anesthetized, and three repeated volumetric images were acquired in both eyes with SD-OCT (250 A-scans x 250 frames x 1024 samplings), centered on the optic nerve head (ONH). The mice were repositioned between scans. TRT was automatically measured within a sampling band of retinal thickness with radii of 55 to 70 pixels, centered on the ONH by using custom segmentation software. The first volumetric image acquired in a given eye was used to register the remaining two SD-OCT images by manually aligning the en face images with respect to rotation and linear translation. Linear mixed-effects models were fitted to global and quadrant thicknesses, taking into account the clustering between eyes, to assess imprecision (measurement reproducibility). RESULTS: Twenty-six eyes of 13 adult mice (age 13 weeks) were imaged. The mean global TRT across all eyes was 298.21 mum, with a mouse heterogeneity standard deviation (SD) of 4.88 mum (coefficient of variation [CV] = 0.016), an eye SD of 3.32 mum (CV = 0.011), and a device-related imprecision SD of 2.33 mum (CV = 0.008). The superior quadrant had the thickest mean TRT measurement (310.38 mum) and the highest (worst) imprecision SD (3.13 mum; CV = 0.010), and the inferior quadrant had the thinnest mean TRT (291.55 mum). The quadrant with the lowest (best) imprecision SD was in the nasal one (2.06 mum; CV = 0.007). CONCLUSIONS: Good reproducibility was observed for SD-OCT retinal thickness measurements in mice. SD-OCT may be useful for in vivo longitudinal studies in mice. FAU - Gabriele, Michelle L AU - Gabriele ML AD - UPMC Eye Center, Eye and Ear Institute, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA. FAU - Ishikawa, Hiroshi AU - Ishikawa H FAU - Schuman, Joel S AU - Schuman JS FAU - Bilonick, Richard A AU - Bilonick RA FAU - Kim, Jongsick AU - Kim J FAU - Kagemann, Larry AU - Kagemann L FAU - Wollstein, Gadi AU - Wollstein G LA - eng GR - R21 EY019092/EY/NEI NIH HHS/United States GR - R21 EY019092-01A2/EY/NEI NIH HHS/United States GR - R01-EY013178/EY/NEI NIH HHS/United States GR - T32 EY017271-02/EY/NEI NIH HHS/United States GR - P30-EY008098/EY/NEI NIH HHS/United States GR - T32-EY017271/EY/NEI NIH HHS/United States GR - R21-EY019092/EY/NEI NIH HHS/United States GR - T32 EY017271/EY/NEI NIH HHS/United States GR - P30 EY008098/EY/NEI NIH HHS/United States GR - P30 EY008098-20/EY/NEI NIH HHS/United States GR - R01 EY013178/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20100623 PL - United States TA - Invest Ophthalmol Vis Sci JT - Investigative ophthalmology & visual science JID - 7703701 SB - IM MH - Animals MH - Anthropometry MH - Biometry MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Reproducibility of Results MH - Retina/*anatomy & histology MH - Tomography, Optical Coherence/*instrumentation MH - Tumor Protein, Translationally-Controlled 1 PMC - PMC3055768 EDAT- 2010/06/25 06:00 MHDA- 2011/01/14 06:00 PMCR- 2011/06/01 CRDT- 2010/06/25 06:00 PHST- 2010/06/25 06:00 [entrez] PHST- 2010/06/25 06:00 [pubmed] PHST- 2011/01/14 06:00 [medline] PHST- 2011/06/01 00:00 [pmc-release] AID - iovs.10-5662 [pii] AID - 10-5662 [pii] AID - 10.1167/iovs.10-5662 [doi] PST - ppublish SO - Invest Ophthalmol Vis Sci. 2010 Dec;51(12):6519-23. doi: 10.1167/iovs.10-5662. Epub 2010 Jun 23.