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High-resolution multistation peripheral MR angiography using undersampled projection reconstruction imaging

✍ Scribed by J. Du; F.R. Korosec; F.J. Thornton; T.M. Grist; C.A. Mistretta

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
582 KB
Volume
52
Category
Article
ISSN
0740-3194

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✦ Synopsis

A novel protocol for three-station MR angiography (MRA) of the lower extremities is described. A time-resolved undersampled projection reconstruction (PR) acquisition was used to image the calf station during a first injection, and non-time-resolved PR acquisitions were used with the bolus-chase technique to image the abdomen and thigh stations during a second injection. The streak artifacts resulting from undersampling the PR data were reduced with the use of a spatial Fermi filter based on the sensitivity of each coil element in a peripheral vascular phased-array coil. This novel technique provided high spatial resolution and a broad range of coverage, and depicted the contrast dynamics in the most distal station of the lower extremities.

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