Abstract
Contrast-enhanced MR angiography (CE-MRA) using steady-state free precession (SSFP) pulse sequences is described. Using SSFP, vascular structures can be visualized with high signal-to-noise ratio (SNR) at a substantial (delay) time after the initial arterial pass of contrast media. The peak blood SSFP signal was diminished by <20% 30 min after the initial administration of 0.2 mmol/kg of Gd-chelate. The proposed method allows a second opportunity to study arterial or venous structures with high image SNR and high spatial resolution. A mask subtraction scheme using spin echo SSFP-S(-) acquisition is also described to reduce stationary background signal from the delayed SSFP angiography images.
| Original language | English |
|---|---|
| Pages (from-to) | 699-706 |
| Number of pages | 8 |
| Journal | Magnetic Resonance in Medicine |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Oct 2002 |
| Externally published | Yes |
Keywords
- Contrast MRA
- FIESTA
- Peripheral angiography
- Pulse sequences
- Steady-state free precession
- Techniques
- TrueFISP
- Vascular imaging