Dynamic contrast-enhanced three-dimensional MR imaging of liver parenchyma: Source images and angiographic reconstructions to define hepatic arterial anatomy

M. T. Lavelle, V. S. Lee, N. M. Rofsky, G. A. Krinsky, J. C. Weinreb

Research output: Contribution to journalArticle

50 Scopus citations

Abstract

PURPOSE: To assess the accuracy of an interpolated breath-hold T1-weighted three-dimensional (3D) gradient-echo (GRE) magnetic resonance (MR) imaging sequence with near-isotropic pixel size (≤2.3 mm) for evaluation of hepatic arterial anatomy variants during dynamic liver parenchymal imaging and to report patterns of hepatic arterial anatomy. MATERIALS AND METHODS: Liver MR imaging, including an interpolated breath-hold 3D GRE sequence with fat suppression (4.2/1.8 [repetition time msec/echo time msec], 12° flip angle), was performed in 207 consecutive patients before and after gadopentetate dimeglumine administration. Of the 207 patients, 202 (98%) had technically satisfactory studies clearly defining the hepatic arterial system. The first contrast material-enhanced GRE acquisition was timed for optimal arterial enhancement with a timing examination. In a retrospective review, hepatic arteries were evaluated on the basis of arterial phase images interpreted by two independent readers using transverse source images complemented by multiplanar reconstructions. Twenty-three patients also underwent digital subtraction angiography, which was a reference standard for comparison. RESULTS: Conventional hepatic arterial anatomy was demonstrated in 135 (67%) of 202 patients. In the 23 patients with angiographic correlation, no discrepancy was noted between MR imaging and digital subtraction angiographic findings. CONCLUSION: Hepatic arterial anatomy can be reliably demonstrated during liver parenchymal imaging with an optimally timed contrast-enhanced isotropic 3D GRE sequence.

Original languageEnglish (US)
Pages (from-to)389-394
Number of pages6
JournalRadiology
Volume218
Issue number2
DOIs
StatePublished - Jan 1 2001

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Keywords

  • Arteries, MR
  • Hepatic arteries
  • Liver, MR
  • Liver, anatomy
  • Liver, angiography
  • Liver, blood supply
  • Magnetic resonance (MR), three-dimensional

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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