Volume 53, Issue 3 pp. 730-734
Note

Time-resolved undersampled projection reconstruction magnetic resonance imaging of the peripheral vessels using multi-echo acquisition

Jiang Du

Corresponding Author

Jiang Du

Department of Medical Physics, University of Wisconsin, Madison, Wisconsin

University of Wisconsin–Madison, Department of Radiology, E3/311 Clinical Science Center, 600 Highland Avenue, Madison, WI 53792-3252===Search for more papers by this author
Aiming Lu

Aiming Lu

Department of Biomedical Engineering, University of Wisconsin, Madison, Wisconsin

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Walter F. Block

Walter F. Block

Department of Medical Physics, University of Wisconsin, Madison, Wisconsin

Department of Biomedical Engineering, University of Wisconsin, Madison, Wisconsin

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Francis J. Thornton

Francis J. Thornton

Department of Radiology, University of Wisconsin, Madison, Wisconsin

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Thomas M. Grist

Thomas M. Grist

Department of Medical Physics, University of Wisconsin, Madison, Wisconsin

Department of Radiology, University of Wisconsin, Madison, Wisconsin

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Charles A. Mistretta

Charles A. Mistretta

Department of Medical Physics, University of Wisconsin, Madison, Wisconsin

Department of Radiology, University of Wisconsin, Madison, Wisconsin

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First published: 18 February 2005
Citations: 5

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.

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