title: Ultrasonographic measurement of uveal melanoma thickness: interobserver variability.
abstract: We retrospectively reviewed ultrasonographic data on 32 uveal melanomas that had been studied both at a referral institution and at our centre within a six-week period. Generally there were good correlations between ultrasonographic measurements of tumour thickness. The mean absolute difference in ultrasound measurements of tumour thickness was 0.64 mm (range 0-2.2 mm); the mean tumour thickness was 5.2 mm (range 3.5-10.2 mm). Tumour diameter, location, the relative ultrasonographic experience with uveal melanoma, type of equipment, and tumour thickness all affected the interobserver variation of measurement.
authors.affiliation: University of California, San Francisco Ocular Oncology Unit.
authors.forename: D H
authors.initials: DH
authors.lastname: Char
authors.forename: S
authors.initials: S
authors.lastname: Kroll
authors.forename: R D
authors.initials: RD
authors.lastname: Stone
authors.forename: R
authors.initials: R
authors.lastname: Harrie
authors.forename: B
authors.initials: B
authors.lastname: Kerman
mesh_terms: D006801:Humans; D008545:Melanoma / Q000473:pathology*; D015588:Observer Variation; D012189:Retrospective Studies; D014463:Ultrasonography; D014604:Uveal Neoplasms / Q000473:pathology*