ArticleOphthalmology and therapy2026
Volumes of Choroidal Nevi on Widefield Optical Coherence Tomography Compared to Calculations Based on Ultrasound Measurements.
Article in Ophthalmology and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionThis study aimed to evaluate choroidal nevi (CN) volume as assessed by widefield optical coherence tomography (WF-OCT) and by ultrasound (US)-based mathematical approximations.
methodsIn a prospective, exploratory study, CN of consecutive patients were imaged with WF-OCT (VG 200D, Intalight Inc., San Jose, California, USA) and US (Quantel Absolu, Cournon, D'Auvergne Cedex, France). Volume was assessed by CN annotation on 64 B-scans on WF-OCT and two approximations based on US measurements (thickness, largest and perpendicular basal diameter (LBD; PBD)): (a) π/6 × thickness × LBD × PBD and (b) 2π/3 × [(LBD + PBD)/4]
resultsEighteen nevi of 18 patients were included in the study. Mean volume evaluated on WF-OCT was 15.1 ± 24.1 mm
conclusionWF-OCT and US-based approximations show good interdevice reliability for CN volume in this exploratory study. Thickness and LBD have significant impact on discrepancy of volume measurements with a tendency that small CN are underestimated and large CN are overestimated with US. This potentially limits interchangeable use of US and WF-OCT.
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