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Proceedings Paper

Computer-assisted transrectal ultrasound exams
Author(s): Brian L. Craine M.D.; Gregory Oldani; John R. Engel; Ronald Whitney; David Wright; Eric R. Craine
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Paper Abstract

We have developed a microcomputer based system with an application specific software package which permits the direct digitization and analysis of transrectal ultrasound (TRUS) images. The system is highly flexible and enables access to a wide range of image analysis tools through relatively simple software modifications which cannot. be implemented using a standard ultrasound instrument. We have demonstrated the capability of the system by an analysis of a number of morphometric parameters and by a correlation of these measurements with the presence of prostatic cancer. We found that the measurement of the ratio of the anterior-posterior axis to transverse axis (ATR) and the presumed circular area ratio (PCAR) were significant predictors of prostatic cancer. The sensitivity of the PCAR measurement was 93 the specificity was 50 the positive predictive value was 57 and the negative predictive value was 91. This system provides researchers with an efficient economical and flexible method to aid in the analysis of ThUS images in a quantitative manner. 1.

Paper Details

Date Published: 1 July 1990
PDF: 10 pages
Proc. SPIE 1233, Medical Imaging IV: Image Processing, (1 July 1990); doi: 10.1117/12.18930
Show Author Affiliations
Brian L. Craine M.D., Highland General Hospital (United States)
Western Research Co., Inc. (United States)
Gregory Oldani, Prescott Urology, Ltd. (United States)
John R. Engel, Western Research Co., Inc. (United States)
Ronald Whitney, Prescott Urology, Ltd. (United States)
David Wright, Western Research Co., Inc. (United States)
Eric R. Craine, Western Research Co., Inc. (United States)

Published in SPIE Proceedings Vol. 1233:
Medical Imaging IV: Image Processing
Murray H. Loew, Editor(s)

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