Methodology for the objective and scientific evaluation of diagnostic systems has been greatly improved over the last 15 years. Many of the investigations that are now carried out on these systems include interpretation (reading) studies of normal and abnormal cases that are evaluated by receiver operating characteristics (ROC) analysis. In recent years, Picture Archiving and Communication Systems (PACS) for diagnostic radiology have begun to be developed by a number of companies which hold the belief that in the near future much more of radiology's traditional work will be done electronically. Unfortunately, many of the basic questions about the clinical relevance of these undertakings have not been addressed in adequate detail. The application of ROC analysis to the problems involved in the development and operation of the PACS systems clearly would help answer a number of these questions. It is the purpose of this program projects to address some of these important issues through a series of multiple observer studies in which we will evaluate the requirements of diagnostic systems as related to picture archiving and communications. We expect these investigations to yield specific recommendations for display requirements of PACS in the radiology environment.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Program Projects (P01)
Project #
1P01CA043684-01A1
Application #
3094047
Study Section
Clinical Cancer Program Project Review Committee (CCP)
Project Start
1987-08-01
Project End
1991-05-31
Budget Start
1987-08-01
Budget End
1988-05-31
Support Year
1
Fiscal Year
1987
Total Cost
Indirect Cost
Name
University of Pittsburgh
Department
Type
Schools of Medicine
DUNS #
053785812
City
Pittsburgh
State
PA
Country
United States
Zip Code
15213
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Gur, D; Good, W F; Oliver, J H et al. (1994) Sequential viewing of abdominal CT images at varying rates. Radiology 191:119-22
Rockette, H E; Gur, D; Campbell, W L et al. (1994) Use of meta-analysis in the evaluation of imaging systems. Acad Radiol 1:63-9
Gur, D; Straub, W H; Lieberman, R H et al. (1992) Clinicians' access to diagnostic imaging information at an academic center: perceived impact on patient management. AJR Am J Roentgenol 158:893-6
Rockette, H E; Gur, D; Metz, C E (1992) The use of continuous and discrete confidence judgments in receiver operating characteristic studies of diagnostic imaging techniques. Invest Radiol 27:169-72
Straub, W H; Gur, D; Good, W F et al. (1991) Primary CT diagnosis of abdominal masses in a PACS environment. Radiology 178:739-43
Rockette, H E; Gur, D; Cooperstein, L A et al. (1990) Effect of two rating formats in multi-disease ROC study of chest images. Invest Radiol 25:225-9
Cooperstein, L A; Good, B C; Eelkema, E A et al. (1990) The effect of clinical history on chest radiograph interpretations in a PACS environment. Invest Radiol 25:670-4
Rockette, H E; Obuchowski, N A; Gur, D (1990) Nonparametric estimation of degenerate ROC data sets used for comparison of imaging systems. Invest Radiol 25:835-7
Slasky, B S; Gur, D; Good, W F et al. (1990) Receiver operating characteristic analysis of chest image interpretation with conventional, laser-printed, and high-resolution workstation images. Radiology 174:775-80

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