Flow-independent magnetic resonance projection angiography
US5070876A · kind A · utility
18Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1989 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Aug 7, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56509
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The performance of current, flow-based sequences for imaging vasculature using MR is severely restricted in regions with inherently slow flow. We address this problem with a flow-independent imaging method. Specifically, we generate projection images of blood in the limbs while suppressing signals from all other tissues (primarily skeletal muscle, bone marrow, and subcutaneous fat) using a flow-compensated, water-selective, short TI inversion recovery sequence with a long echo time. We experimentally evaluate the effectiveness of this sequence and present in vivo results clearly demonstrating the method's potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.