METHOD FOR FORMING COMPOSITE PARAMETER IMAGE FROM SERIES OF ANGIOGRAPHIC DIGITAL SUBTRACTION FRAMES Russian patent published in 2017 - IPC G06T5/50 A61B5/00 

FIELD: medicine.

SUBSTANCE: in a series of angiographic digital subtraction frames, sets of diagnostic significant subtraction frames are isolated. For each set of diagnostically significant subtraction frames, a parametric image is formed taking into account a colour or halftone scale synchronized with reference time points selected in accordance with the phases of the physiological cycles in the patient's body. A composite image for a series of angiographic digital subtraction frames is formed by combining the values of elements located at coincident positions in parametric images.

EFFECT: method allows to improve the visualization quality of the patient's vascular system by preserving the repeatability of the result of encoding the parametric image, eliminating the loss of information about the vessels in the places where their projections are placed, and increasing the contrast of images of the arteries and veins in the composite parametric image.

5 cl, 6 dwg