Accuracy and reliability of store-and-forward teledermatology: preliminary results from the St George Teledermatology Project

The Australasian Journal of Dermatology
A C LimS P Shumack

Abstract

Teledermatology is the practice of dermatology across distances (and time) and involves the transfer of electronic information. To be effective and safe, the teledermatology process needs to demonstrate an acceptable level of accuracy and reliability. Accuracy is reflected by the degree of concordance (agreement) between the teledermatology and face-to-face diagnoses. Reliability is dependent on how consistently a set of results can be reproduced across different operators. Mean concordance (primary diagnoses) achieved by four dermatologists studying 53 store-and-forward diagnostic cases, originating from 49 referred patients, was 79% (range 73-85%). When the differential diagnoses were taken into account, the variation across individual dermatologists narrowed further, with a mean of 86% (range 83-89%). In contrast, the mean general practitioner (GP; n=11) concordance (GP face-to-face vs reference dermatologist store-and-forward diagnoses) was 49%. An interim review of all 49 teledermatology patients showed no adverse outcome at the end of 3 months. The ability to request face-to-face visits by dermatologists, combined with GPs maintaining primary care of the referred patient, serve as additional safeguards for patients using ...Continue Reading

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