Hepatic arterial-phase dynamic gadolinium-enhanced MR imaging: Optimization with a test examination and a power injector

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

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To optimize findings at dynamic gadolinium-enhanced hepatic magnetic resonance imaging in the hepatic arterial phase, a timing examination was performed after injection of a 0.5-mL timing bolus of gadopentetate dimeglumine. In the experimental group (n = 28), power injection was used and the imaging delay was determined in each patient on the basis of the results of the timing examination. In the control group (n = 28), hand injection and a fixed 20-second imaging delay were used. Arterial-phase examinations (defined as relative liver enhancement of not more than 30% of peak parenchymal enhancement) were successful in 26 (93%) experimental group patients and in 17 (61%) control group patients.

Original languageEnglish (US)
Pages (from-to)268-273
Number of pages6
Issue number1
Publication statusPublished - Jan 1997



  • Angioma, gastrointestinal tract
  • Gadolinium
  • Liver neoplasms, diagnosis
  • Magnetic resonance (MR), contrast enhancement
  • Magnetic resonance (MR), technology

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

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