Abstract
This work describes a technique that combines multishot echo-planar imaging (EPI) with steady-state free precession (SSFP, also known as TrueFISP, FIESTA, and balanced FFE) for multislice, cine MR imaging of the heart. Unlike recently reported methods, the technique presented here (FIESTA-ET) is high-resolution and does not require offline reconstruction or post-processing. It is therefore suitable for use on standard clinical scanners. FIESTA-ET was compared with conventional FIESTA imaging in 10 volunteers and quantitative analyses of myocardial signal-to-noise ratios (SNR) and ventricular volumes were performed. While providing comparable image quality, FIESTA-ET required half the acquisition time per slice of conventional FIESTA. Because multiple slices could be imaged in a single breathhold, the entire heart could be scanned in less than 2 min. Although the FIESTA-ET images exhibited an unexpected increase (P < 0.0005) in myocardial SNR of 16% over FIESTA, the volumetric measurements showed excellent correlation.
Original language | English (US) |
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Pages (from-to) | 934-941 |
Number of pages | 8 |
Journal | Magnetic Resonance in Medicine |
Volume | 48 |
Issue number | 6 |
DOIs | |
State | Published - Dec 1 2002 |
Externally published | Yes |
Keywords
- Cine study
- Echo-planar
- Heart
- MR
- Magnetic resonance
- Rapid imaging
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging