Toward the objective evaluation of diagnostic workstations

Amita Sapra; Daniel J. Valentino; Suzie El-Saden; Gary R. Duckwiler M.D.; Jonathan G. Goldin; James W. Sayre

doi:10.1117/12.319787

13 July 1998 Toward the objective evaluation of diagnostic workstations

Amita Sapra, Daniel J. Valentino, Suzie El-Saden, Gary R. Duckwiler M.D., Jonathan G. Goldin, James W. Sayre

Proceedings Volume 3339, Medical Imaging 1998: PACS Design and Evaluation: Engineering and Clinical Issues; (1998) https://doi.org/10.1117/12.319787
Event: Medical Imaging '98, 1998, San Diego, CA, United States

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.

Citation Download Citation

Amita Sapra, Daniel J. Valentino, Suzie El-Saden, Gary R. Duckwiler M.D., Jonathan G. Goldin, and James W. Sayre "Toward the objective evaluation of diagnostic workstations", Proc. SPIE 3339, Medical Imaging 1998: PACS Design and Evaluation: Engineering and Clinical Issues, (13 July 1998); https://doi.org/10.1117/12.319787

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KEYWORDS

Diagnostics

Process modeling

Picture Archiving and Communication System

Magnetic resonance imaging

Time metrology

Analytical research

Feature extraction

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