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1 May 1994 Overlapped-image display method: a technique for comparing medical images on a workstation
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A very common task for a radiologist is to compare a previous examination with a current one. With film, the typical method varies somewhat, but usually involves putting up comparable views on two adjacent lightboxes. The reader then looks back and forth between the two films to assess changes. For images that can be placed on adjacent lightboxes, this method works reasonably well, but if images are placed several lightboxes apart, the task becomes difficult. A method that may help improve the comparison operation is possible with a workstation, but difficult (at best) with film. That is, to present the images to be compared as if they were on top of each other. The reader then uses a cursor to move a reveal bar or region of interest that shows the images `underneath.' This application has some potential for simplifying the comparison task for the radiologist. It avoids the extremes of head movement, and may keep the area of interest nearly coincident.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Steven C. Horii M.D., Sheel Kishore, John Fred Stevens, Sridhar B. Seshadri, Eric R. Feingold, Julie Barudin, and Harold L. Kundel "Overlapped-image display method: a technique for comparing medical images on a workstation", Proc. SPIE 2164, Medical Imaging 1994: Image Capture, Formatting, and Display, (1 May 1994);

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