Retrospective ordering of segmented MRI cardiac data using cardiac phase
US5997883A · kind A · utility
57Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Jul 1, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jul 1, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7289
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method is disclosed to reconstruct multiphase MR images that accurately depict the entire cardiac cycle. A segmented, gradient-recalled-echo sequence is modified to acquire data continuously. Images are retrospectively reconstructed by selecting views from each heartbeat based on cardiac phase rather than the time elapsed from the QRS complex. Cardiac phase is calculated using a model that compensates for beat-to-beat heart rate changes.
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