High temporal and spatial resolution 3D time-resolved contrast-enhanced magnetic resonance angiography of the hands and feet

Clifton R Haider, Stephen J Riederer, Eric A. Borisch, James Glockner, Roger C. Grimm, Thomas C. Hulshizer, Thanila A. MacEdo, Petrice M. Mostardi, Phillip J. Rossman, Terri J Vrtiska, Phillip M. Young

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19 Scopus citations

Abstract

Methods are described for generating 3D time-resolved contrast-enhanced magnetic resonance (MR) angiograms of the hands and feet. Given targeted spatial resolution and frame times, it is shown that acceleration of about one order of magnitude or more is necessary. This is obtained by a combination of 2D sensitivity encoding (SENSE) and homodyne (HD) acceleration methods. Image update times from 3.4-6.8 seconds are provided in conjunction with view sharing. Modular receiver coil arrays are described which can be designed to the targeted vascular region. Images representative of the technique are generated in the vasculature of the hands and feet in volunteers and in patient studies.

Original languageEnglish (US)
Pages (from-to)2-12
Number of pages11
JournalJournal of Magnetic Resonance Imaging
Volume34
Issue number1
DOIs
StatePublished - Jul 2011

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Keywords

  • contrast-enhanced MRA
  • parallel acquisition
  • time-resolved MRI

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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