Methods, systems, and computer readable media for processing digital subtraction angiography (DSA) and computed tomography (CT) images for reducing radiation exposure in DSA and CT subjects
US11640682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Apr 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/404
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for processing digital subtraction angiography (DSA) or computed tomography (CT) images for reduced radiation exposure to a DSA or CT subject includes receiving, as input, a plurality of captured DSA or CT image frames of a contrast agent flowing through a volume of interest in a subject. The method further includes fitting a mathematical model to measured contrast agent density of individual voxels of the captured DSA or CT image frames to produce a mathematical model of contrast agent flow across the captured DSA or CT image frames. The method further includes sampling the mathematical model of contrast agent flow for the individual voxels to produce reconstructed DSA or CT image frames. The method further includes outputting at least one of the reconstructed CT or DSA image frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.