METHOD FOR THE PROCESSING OF RADIOGRAPHY CARDIAC IMAGES WITH A VIEW TO OBTAINING A SUBTRACTED AND REGISTERED IMAGE
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Abstract
In a method for processing radiography cardiac images in order to obtain a subtracted and registered fusion image, at the start of a medical intervention, a radiology image of the heart is obtained by injection of a contrast product into one of the anatomical structures of the heart. Radioscopy images are acquired and are viewed in real time. A subtraction algorithm is implemented. This subtraction algorithm uses the radiology images to make the anatomical structures of the heart visible in the radioscopy images. A registration algorithm is implemented. This algorithm is capable of registering these two images by means of a catheter placed in the coronary sinus. This registration makes it possible to obtain perfect concordance between the two subtracted images.
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Citations
23 Claims
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1-12. -12. (canceled)
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13. A method for processing cardiac images in which
at the start of a medical intervention, a contrast medium is injected into an anatomical structure of a patient'"'"'s heart, the patient'"'"'s heart is exposed to radiation produced by a radiography imaging apparatus, through a detector, a radiology image with a contrast medium representing an internal structure of the heart is obtained, during the medical intervention, the patient'"'"'s heart is exposed to radiation produced by the radiography imaging apparatus, through the detector, a succession of radioscopy images representing an internal structure of the heart is obtained, the method comprising: -
subtracting images between the radiology image with the contrast medium and the radioscopy images; performing a registration between the radiology image with the contrast medium and the radioscopy images to obtain a fusion image; synchronizing the fusion image with an electrocardiogram signal; and displaying the synchronized fusion image on a display screen. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification