Systems and methods for correcting mismatch induced by respiratory motion in positron emission tomography image reconstruction
US10504250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2018 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | May 31, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to PET imaging systems and methods. The systems may execute the methods to obtain an anatomical image and PET data of a subject, and gate the PET data into a plurality of bins. The systems may execute the methods to reconstruct a plurality of gated PET images based on the gated PET data. The systems may execute the methods to determine a motion vector field corresponding to a target respiratory phase with respect to a reference respiratory phase relating to the anatomical image. The systems may execute the methods to obtain a respiratory phase-matched anatomical image for the target respiratory phase by transforming a VOI in the anatomical image based on the motion vector field corresponding to the target respiratory phase with respect to the reference respiratory phase, and reconstructing an attenuation corrected PET image corresponding to the target respiratory phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.