Echo-train STIR MRI of the liver: Comparison of breath-hold and non- breath-hold imaging strategies

James P. Earls, Neil M. Rofsky, Douglas R. DeCorato, Glenn A. Krinsky, Jeffrey C. Weinreb

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The purpose of this study was to evaluate echo-train short inversion- time inversion recovery (STIR) sequences and compare the results obtained with breath-hold and nonbreath-hold imaging strategies. Forty-one patients referred for hepatic magnetic resonance were imaged with both a breath-hold STIR (BH-STIR; acquisition time [TA] 16-20 seconds x 2) and a non-breath- hold STIR (NBH-STIR; TA 210-256 seconds). Quantitative analysis of the liver, spleen, and up to five hepatic lesions per patient was performed. Three blinded readers recorded the number of focal lesions depicted by each study and qualitatively evaluated overall image quality, lesion conspicuity, and image artifacts. The BH-STIR had greater sensitivity (98.8% vs. 91.6%) for detection of hepatic lesions than the NBH-STIR. The BH-STIR was statistically superior in four measures of image quality and had fewer image artifacts. The NBH-STIR images had statistically higher signal-to-noise (S/N, P < 0.001) and liver-lesion contrast-to-noise (C/N, P = 0.005) ratios. For the evaluation of focal hepatic lesions, a breath-hold echo-train STIR sequence provided superior overall image quality and allowed for detection of more lesions in a shorter amount of time than a non-breath-hold echo-train STIR sequence.

Original languageEnglish (US)
Pages (from-to)87-92
Number of pages6
JournalJournal of Magnetic Resonance Imaging
Volume9
Issue number1
DOIs
StatePublished - Jan 1 1999

Keywords

  • Inversion recovery
  • Liver MRI
  • Liver neoplasms

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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