1 July 1990 Whole-leg display techniques for digital peripheral angiography studies
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Abstract
Two methods of image display are developed in which the best 5-7 images of the peripheral arteries are joined together to form a single, continuous image of the legs. First, a complete image of both legs, called WHOLE LEG, is reduced so that it fits on a single monitor or hardcopy image. Second, a full resolution image, called SCROLL, is assembled that can be scrolled on a video monitor. From the geometrical parameters of the acquisition (source-to_detector distance, table height, etc.), the portions of each image to remove beforejoining the remaining portions together are estimated. This estimate is refined using an automatic search for the best match. To correct for body taper, images are intensity equalized. Using a reconstruction method that assumes a planar geometry results in a volume that is displayed in neighboring image frames and a volume that is never displayed. Nevertheless, WHOLE-LEG is aesthetically pleasing. In the case of SCROLL, images are displayed such that every part of each input image is displayed at one time or another. A video tape of SCROLL shows how this works.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David L. Wilson, Wolfgang P. Koenig, John L. Lundberg, "Whole-leg display techniques for digital peripheral angiography studies", Proc. SPIE 1232, Medical Imaging IV: Image Capture and Display, (1 July 1990); doi: 10.1117/12.18848; https://doi.org/10.1117/12.18848
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