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  • Title: Hepatic arterial-phase dynamic gadolinium-enhanced MR imaging: optimization with a test examination and a power injector.
    Author: Earls JP, Rofsky NM, DeCorato DR, Krinsky GA, Weinreb JC.
    Journal: Radiology; 1997 Jan; 202(1):268-73. PubMed ID: 8988222.
    Abstract:
    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.
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