Zero echo time MR imaging with water-fat separation
US11360172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2019 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | May 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of magnetic resonance (MR) imaging to enable ‘silent’ zero echo time (ZTE) imaging in combination with water/fat separation. The method includes subjecting the object to a first self-refocusing zero echo time imaging sequence, wherein a first sequence of gradient echo signals is acquired as a first number N1 of radial k-space spokes at a first repetition time TR1; subjecting the object to a second self-refocusing zero echo time imaging sequence, wherein a second sequence of gradient echo signals is acquired as a second number N2 of radial k-space spokes at a second repetition time TR2, wherein N2≠N1 and/or TR2≠TR1; and reconstructing a MR image from the acquired gradient echo signals. Signal contributions of chemical species (e.g., water and fat) may be separated exploiting the different echo times attributed to the gradient echo signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.