Bilateral ce-MR angiography of the hands at 3.0 T and 1.5 T: Intraindividual comparison of quantitative and qualitative image parameters in healthy volunteers

Jan Thorsten Winterer*, Olaf Moske-Eick, Michael Markl, Alexander Frydrychowicz, Thorsten Alexander Bley, Mathias Langer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The purpose of this study was to determine the benefit of bilateral contrast-enhanced MR angiography (ce-MRA) of the hands at 3.0 Tesla (T) compared with an established 1.5-T technique in healthy volunteers. Intraindividual bilateral ce-MRA of the hands was performed at 1.5 T and 3.0 T in 14 healthy volunteers using a timed ultra-fast GRE sequence featuring parallel acquisition. The evaluation comprised measurement of the vessel signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR), rating of the image quality and the assessment of artefacts and venous contamination. At 3.0 T, SNR improved up to 95% and CNR up to 129%. The image quality of the larger inflow arteries, the palm arches and common digital arteries was good or sufficient at either magnetic field strengths. However, 3.0-T MRA was clearly superior in the depiction of the digital arteries. Ce-MRA of the hand clearly profits from the use of 3.0 T. Compared with 1.5 T, a substantial increase of CNR is found resulting in a significantly better delineation of the small digital arteries. Saturation affects more the SNR of the perivascular tissue than the contrast-enhanced blood, and thus leads to a marked increase of CNR at 3.0.

Original languageEnglish (US)
Pages (from-to)658-664
Number of pages7
JournalEuropean Radiology
Volume18
Issue number4
DOIs
StatePublished - Apr 1 2008

Keywords

  • 3.0 Tesla
  • Hand artery diagnostics
  • Intraindividual study
  • MR angiography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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