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Published online before print September 27, 2006, 10.1148/radiol.2412051898
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(Radiology 2006;241:528-537.)
© RSNA, 2006

Technical Developments

MR Imaging with Remote Control: Feasibility Study in Cardiovascular Disease1

J. Paul Finn, MD, Roya Saleh, MD, Stefan Thesen, PhD, Stefan G. Ruehm, MD, Margaret H. Lee, MD, John Grinstead, PhD, John S. Child, MD and Gerhard Laub, PhD

1 From the Departments of Radiological Sciences (J.P.F., R.S., S.G.R., M.H.L.) and Medicine (J.P.F., J.S.C.), David Geffen School of Medicine, University of California at Los Angeles, Peter V. Ueberroth Bldg, Suite 3371, 10945 Le Conte Ave, Los Angeles, CA 90095-7206; Siemens Medical Solutions, Erlangen, Germany (S.T.); and Siemens Medical Solutions, Los Angeles, Calif (J.G., G.L.). Received November 23, 2005; revision requested January 3, 2006; revision received January 21; accepted February 8; final version accepted April 3. Address correspondence to J.P.F. (e-mail: pfinn{at}mednet.ucla.edu).

The institutional review board approved this HIPAA-compliant study and waived informed consent. The purpose was to retrospectively evaluate remote control magnetic resonance (MR) imaging in complex cardiovascular procedures, whereby operational expertise was made available locally from a remote location. Thirty patients underwent cardiac (12 patients) and/or vascular (30 patients) 1.5-T MR imaging with a remote operator by using a personal computer. All patient studies were compared with 30 control studies obtained with conventional local imaging. Cardiac cine, myocardial delayed enhancement, and MR angiograms were assessed for overall image quality and motion artifact. MR angiograms were evaluated for vascular definition. Image quality was excellent in 90% (38 of 42) of remote images versus 60% (25 of 42) of control group images (P < .01). Scores for motion artifact were not significantly different (P = .11). Interactive MR imaging was successfully implemented with remote control in complex cardiovascular cases; diagnostic quality of images was superior to that of images obtained locally.

© RSNA, 2006






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