H - Electricity – 05 – G
Patent
H - Electricity
05
G
358/11
H05G 1/64 (2006.01) A61B 6/00 (2006.01) H04N 5/32 (2006.01)
Patent
CA 1193761
ABSTRACT OF THE DISCLOSURE A digital fluorographic method and system calls for digitizing and storing first and second x-ray picture information derived prior to and after, respectively, injection of a contrast medium into the subject. The first and second x-ray picture information are digitized, stored and processed to develop first and second processed picture data, respec- tively, and the first and second processed picture data are subtractively combined to produce picture data corresponding to a pictorial representation of differences between the x-ray picture information prior to and after, respectively, the injection of the contrast medium. The method and system call for various combinations of the following operations: averaging one or both of the x-ray picture data; convolution of the picture data derived prior to the injection of the contrast medium; pre-enhancement of one or both of the x-ray picture data; and post-enhancement of the picture data corresponding to the pictorial representation of the differences between the x-ray pictures prior to and after, respectively, the injection of the contrast medium. The inventive system includes a plurality of storage units and display units, in conjunction with an image processor, for rapidly operating on (whole-picture processing) the various x-ray picture data provided to the system.
410771
Georgetown University
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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