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DOI: 10.1148/radiol.2262011593
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(Radiology 2003;226:558-566.)
© RSNA, 2003

Technical Developments

Hepatic Arterial Phase MR Imaging with Automated Bolus-Detection Three-dimensional Fast Gradient-Recalled-Echo Sequence: Comparison with Test-Bolus Method1

Hero K. Hussain, MD, Frank J. Londy, RT, Isaac R. Francis, MD, Hanh V. Nghiem, MD, William J. Weadock, MD, Achamyeleh Gebremariam, MSc and Thomas L. Chenevert, PhD

1 From the Department of Radiology, University of Michigan Health System, 1500 E Medical Center Dr, UH B2B311-MRI, Ann Arbor, MI 48109-0030. Received September 27, 2001; revision requested December 10; final revision received May 8, 2002; accepted May 15. Address correspondence to H.K.H. (e-mail: hhussain@umich.edu).

Sixty-two patients underwent magnetic resonance (MR) imaging of the liver with the automated contrast material bolus–detection technique. Arterial phase MR images were assessed quantitatively and qualitatively. In 23 patients, a test bolus of contrast material was injected intravenously before dynamic MR imaging. There was good correlation and agreement between delay times estimated with both timing methods. Eighty-three percent of arterial phase images obtained with automated contrast material bolus detection were optimal. There was good correlation and agreement between delay times estimated with both timing methods. Optimal hepatic arterial phase MR images can be obtained routinely with automated detection of a contrast material bolus.

© RSNA, 2003

Index terms: Liver, cirrhosis, 761.794 • Liver, MR, 761.121411, 761.121412 • Liver neoplasms, MR, 761.121411, 761.121412 • Magnetic resonance (MR), contrast enhancement, 761.121411, 761.121412 • Magnetic resonance (MR), vascular studies




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