Patent ID: 11883222
Assignee: ANDROMEDA MEDICAL IMAGING INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 9:
10. A method for providing at least one Computed Tomography Angiography (CTA) perfusion functional map, wherein the method is performed by at one processor and the method comprises:
obtaining Time Resolved Helical CTA (TRH-CTA) image data;
preprocessing the TRH-CTA helical image data to generate preprocessed TRH-CTA helical image data;
generating time density curve data for a plurality of voxels for an axial imaging slice from the preprocessed TRH-CTA helical image data, where the time density curve data comprise intensity values for different phases of the preprocessed TRH-CTA helical image data arranged sequentially in time;
generating the at least one perfusion functional map for the axial imaging slice by at least one of: (1) applying at least one mapping function to different phases of the time density curve data corresponding to the axial imaging slice; (2) applying a deconvolution method to the time density curve data; and (3) applying a non-deconvolution method to the time density curve data;
perform filtering in the spatial domain or the frequency domain on the at least one perfusion functional map; and
outputting, via a display, the at least one filtered perfusion functional map.