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A multipurpose phantom for quality assurance of contrast-enhanced MR imaging of the breast
Authors:U. Fischer  W. Döler  S. Luftner-Nagel  E. Grabbe
Affiliation:Department of Radiology, Georg-August-Universit?t G?ttingen, Robert-Koch Strasse 40, D-37075 G?ttingen, Germany, DE
Department of Medical Physics, Georg-August-Universit?t G?ttingen, Robert-Koch Strasse 40, D-37075 G?ttingen, Germany, DE
Abstract:A phantom consisting of four components was developed to simulate contrast-enhanced MR imaging of the breast. These components included the correlation between the signal intensity and the contrast medium concentration, the uniformity of signals within surface coils, artefacts due to opposed-phase imaging effects, spatial resolution and the acquisition of relevant signal-to-time curves. Repetitive measurements demonstrated an excellent reproduction of phantom imaging with a deviation in signal intensity of approximately 5 %. The presented phantom allows the optimization of examination protocols as well as the comparison of different examination techniques. Furthermore, it enables the routine quality monitoring of contrast-enhanced MR imaging of the breast. Received: 28 May 1998; Revised: 3 September 1998; Accepted: 14 October 1998
Keywords:: Contrast-enhanced MR imaging –   Breast –   Quality assurance –   Phantom
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