Time-resolved undersampled projection reconstruction magnetic resonance imaging of the peripheral vessels using multi-echo acquisition
✍ Scribed by Jiang Du; Aiming Lu; Walter F. Block; Francis J. Thornton; Thomas M. Grist; Charles A. Mistretta
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 428 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
Abstract
The hybrid projection reconstruction (PR) imaging provides high temporal resolution through an undersampled PR acquisition for the in‐plane dimensions and Cartesian slice encoding for the through‐plane dimension. The undersampling of projection data introduces streak artifact, which may severely compromise image quality. This study reports on a combination of multi‐echo acquisition with time‐resolved undersampled PR imaging and its application to peripheral magnetic resonance angiography. Multi‐echo acquisition improved imaging speed effectively, thereby reducing the undersampling streak artifact and improving the temporal resolution. The gradient distortion was reduced through gradient calibration and accurate k‐space trajectory measurement. Magn Reson Med 53:730–734, 2005. © 2005 Wiley‐Liss, Inc.