Evaluation of the diagnostic value of a computed radiography system by comparison of digital hard copy images with screen-film mammography: results of a prospective clinical trial

European Radiology
C Van OngevalG Marchal

Abstract

The purpose of the study was to determine prospectively the diagnostic value of a computed radiography (CR) system by comparing mammographic hard copy images with screen-film mammography (SFM). A series of 100 patients, who came for diagnostic investigation, underwent two-view SFM (Lorad M-IV Platinum) and digital mammography with a CR system (AGFA CR system). The images were obtained by double exposure, i.e. same view without removing compression of the corresponding breast. The CR images were processed with dedicated processing for mammography. Six radiologists read sets of SFM and CR images. The primary efficacy parameter was the overall diagnostic value. The secondary efficacy parameters were lesion conspicuity and lesion details (for masses and micro-calcifications), tissue visibility at chest wall and at skin line, axillary details, overall density and sharpness impression and the overall noise impression. These parameters were scored by a 7-point scoring system. "CR non-inferior to SFM" was concluded if the lower confidence interval bound exceeded 80%. The confidence interval for the overall diagnostic value was between 96.4% and 100%. Pooled analysis of the ten features for image quality comparison demonstrated for all ...Continue Reading

References

Sep 19, 2000·Radiographics : a Review Publication of the Radiological Society of North America, Inc·E D PisanoS M Pizer
Dec 31, 2003·Clinical Radiology·J J James
Oct 14, 2004·European Radiology·A Noel, F Thibault
Sep 20, 2005·The New England Journal of Medicine·Etta D PisanoUNKNOWN Digital Mammographic Imaging Screening Trial (DMIST) Investigators Group

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Citations

Mar 30, 2010·Breast Cancer Research and Treatment·Joohon SungSung-Soo Kim
Mar 29, 2011·Breast Cancer Research and Treatment·Joohon SungDonghun Lee
Jun 2, 2009·European Journal of Radiology·Yanpeng LiMary Rickard
Dec 22, 2012·Physics in Medicine and Biology·M FiglJ Hummel
Dec 30, 2010·Journal of Periodontology·Peter F KadorRichard A Reinhardt
May 27, 2010·Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology·Joohon SungSun-Young Kim

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