Producing a phase contrast MR image from a partial Fourier data acquisition
US6393313B1 · kind B1 · utility
25Cited by
9References
18Claims
0Family size
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Key dates
| Filing date | Aug 23, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Aug 23, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0263
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac triggered, fast gradient-recalled echo pulse sequence is used to acquire a partial Fourier image data set during a single breath-hold. The image data is velocity encoded and a velocity image is produced by zero-filling and Fourier transforming the zero-filled data set. A separate magnitude image is produced by performing a homodyne reconstruction on the partial Fourier image data set. Anatomic information, such as artery size, is obtained from the magnitude image and combined with velocity information from the velocity image to measure blood flowing through an artery.
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