Taylor-Phillips, Sian, Wallis, Matthew G., Duncan, Alison and Gale, Alastair G. (2009) The effect of digitising film prior mammograms on radiologists' performance in breast screening : a JAFROC study. In: Medical Imaging 2009: Image Perception, Observer Performance, and Technology Assessment, Lake Buena Vista, FL, USA, 11 Feb 2009. Published in: Proceedings Of The Society Of Photo-Optical Instrumentation Engineers, Vol.7263 p. 726311.

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Abstract

After the introduction of digital mammography the film mammograms from the previous screening round (the prior mammograms) can be displayed in a variety of ways. This paper investigates the performance of radiologists reading digital screening mammograms with the prior mammograms displayed either as film or in digitised format. A set of 162 cases was assembled, each with two view digital mammograms and two view film prior mammograms. Of these cases 66 were malignant as proven by biopsy, and the others were normal or benign. The film prior mammograms were digitised at 75μm. Eight participants, with four to seventeen years experience of reading screening mammograms, each read the mammograms twice; once with the digitised prior mammograms displayed on the digital workstation, and once with the film prior mammograms displayed on an adjacent multi-viewer. The two viewings were at least one month apart. Participants marked the location of abnormalities on a paper copy of the mammograms and rated the probability of malignancy of each abnormality. Participants were video-taped whilst reading the cases to enable analysis of gross eye movements for information regarding the level of use of the prior mammograms. JAFROC analysis showed no difference in performance between the conditions.

Item Type:	Conference Item (Paper)
Subjects:	R Medicine > R Medicine (General) R Medicine > RG Gynecology and obstetrics T Technology > T Technology (General)
Divisions:	Faculty of Medicine > Warwick Medical School > Health Sciences Faculty of Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH):	Radiologists -- Evaluation, Breast -- Radiography -- Technological innovation, Breast -- Radiography -- Quality control, Microcomputer workstations, Radiography, Medical -- Digital techniques
Journal or Publication Title:	Proceedings Of The Society Of Photo-Optical Instrumentation Engineers
Publisher:	S P I E - International Society for Optical Engineering
ISSN:	0277-786X
Date:	2009
Volume:	Vol.7263
Page Range:	p. 726311
Identification Number:	10.1117/12.810902
Status:	Peer Reviewed
Publication Status:	Published
Conference Paper Type:	Paper
Title of Event:	Medical Imaging 2009: Image Perception, Observer Performance, and Technology Assessment
Type of Event:	Conference
Location of Event:	Lake Buena Vista, FL, USA
Date(s) of Event:	11 Feb 2009
URI:	http://wrap.warwick.ac.uk/id/eprint/37426

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