Data acquisition acceleration in magnetic resonance angiography applications using magnetization-prepared simultaneous multi-slice acquisition
US10517490B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/4835
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for producing an image representative of the vasculature of a subject using a MRI system includes the acquisition of a signal indicative of a subject' cardiac phase. During each heartbeat of the subject, image slices of a volume covering a region of interest (ROI) within the subject are acquired by applying a volume-selective venous suppression pulse to suppress (a) venous signal for an upper slice in the ROI; (b) venous signal for slices that are upstream for venous flow in the ROI; and (c) background signal from the upstream slices. Next, a slice-selective background suppression pulse is applied to suppress background signal of the upper slice. Following a quiescent time interval, a spectrally selective fat suppression pulse is applied to the entire volume to attenuate signal from background fat signal. Then, a simultaneous multi-slice acquisition of the upper slice and the upstream slices is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.