Conversion of teaching file cases from film to digital format: a comparison between use of a diagnostic-quality digitizer and use of a flatbed scanner with transparency adapter

Academic Radiology
Matthew J BassignaniJoan McIlhenny

Abstract

The authors' institution had decided to convert its radiology teaching files from film to digital media. This study was performed to determine the simplest method for converting the analog film images to digital images without a subsequent loss in diagnostic accuracy. Twenty chest radiographs that demonstrated interstitial lung disease were randomly selected from the departmental teaching files and matched with 20 control radiographs from healthy adults. Analog film images were converted with both a diagnostic-quality film image digitizer (digitized) and a flatbed scanner equipped with a transparency adapter (scanned). Three radiology faculty members reviewed a mixed set of corresponding analog film, digitized, and scanned images. Reviewers judged whether each image depicted interstitial lung disease, indicated their level of confidence in the diagnosis, and rated each image for quality. Image quality was assessed by each reviewer subjectively at the time of viewing the individual image, without regard to other images. A one-way analysis of variance was performed to determine whether there was a statistically significant difference in diagnostic accuracy between the three image formats. Agreement in diagnosis between correspond...Continue Reading

Citations

Jun 27, 2006·Dento Maxillo Facial Radiology·S PrapayasatokS Pramojanee
Oct 28, 2005·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Laura J ArmbrustJaesung Choi
Nov 21, 2008·AJR. American Journal of Roentgenology·Oscar Jim Michael CoppesAaron McCaslin
Sep 24, 2020·Pediatric Radiology·Richard I MarkowitzJonathan Lilley
Sep 5, 2006·American Journal of Veterinary Research·Stephanie Essman, Ashley Sherman
Nov 9, 2011·Journal of Korean Medical Science·Won-Jeong LeeKurt Georg Hering

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