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Proceedings Paper

Toward the objective evaluation of diagnostic workstations
Author(s): Amita Sapra; Daniel J. Valentino; Suzie El-Saden; Gary R. Duckwiler M.D.; Jonathan G. Goldin; James W. Sayre
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Paper Abstract

The purpose of this research was to develop an objective methodology for evaluating the clinical utility of imaging workstation functions. To test this methodology, we compared a general purpose workstation features against a task-based workstation features. Prior to conducting the study, radiologists input was used to develop these workstation features in order to answer a formulated research question. Next, a comprehensive list of features was compiled for each workstation. From this list, qualitative predictions were made as to which workstation would produce greater clinical utility. The four parameters used to measure clinical utility included: efficiency (time based measures), user satisfaction, confidence in diagnosis and accuracy in diagnosis. Radiologists read a total of two hundred cases on both workstations and these cases where categorized by complexity. Analysis found that the task-based workstation has greater clinical utility overall. The task-based workstation was found to be significantly more efficient, brought greater confidence in diagnosis, and was found to be more satisfying to use overall. There was no significant difference in accuracy of diagnosis between workstations. It was found that our quantitative results matched with the qualitative prediction made about clinically utility prior to the onset of the study; therefore, validating the methodology.

Paper Details

Date Published: 13 July 1998
PDF: 11 pages
Proc. SPIE 3339, Medical Imaging 1998: PACS Design and Evaluation: Engineering and Clinical Issues, (13 July 1998); doi: 10.1117/12.319787
Show Author Affiliations
Amita Sapra, UCLA School of Medicine (United States)
Daniel J. Valentino, UCLA School of Medicine (United States)
Suzie El-Saden, UCLA School of Medicine (United States)
Gary R. Duckwiler M.D., UCLA School of Medicine (United States)
Jonathan G. Goldin, UCLA School of Medicine (United States)
James W. Sayre, UCLA School of Medicine (United States)

Published in SPIE Proceedings Vol. 3339:
Medical Imaging 1998: PACS Design and Evaluation: Engineering and Clinical Issues
Steven C. Horii M.D.; G. James Blaine, Editor(s)

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