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Magn Reson Med. 2005 Feb;53(2):418-24.

Reduction of blurring in view angle tilting MRI.

Author information

1
Department of Radiology, Stanford University, Stanford, California, USA. kimbutts@stanford.edu

Abstract

Magnetic resonance imaging (MRI) in the presence of metallic objects suffers from slice-selection errors and in-plane distortions. View angle tilting (VAT) corrects for in-plane distortions by adding a gradient on the slice-select axis during readout, but can suffer from image blurring. This work demonstrates that the major source of blurring is a slice profile modulation of the data, and proposes several solutions to prevent such blurring. Multiple high-bandwidth readouts are demonstrated to reduce the blurring while improving the signal-to-noise ratio (SNR) over a single high-bandwidth readout.

PMID:
15678535
DOI:
10.1002/mrm.20375
[Indexed for MEDLINE]
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