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Abstract #1365

68Ga-PSMA dose reduction for imaging the pelvic region with simultaneous PET/MR

Edwin E.G.W. ter Voert1,2, Hannes W. Nagel1, Gaspar Delso3, and Irene A. Burger1

1Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland, 2University of Zurich, Zurich, Switzerland, 3GE Healthcare, Waukesha, WI, United States

When performing simultaneous single station PET and MR scans in the pelvic region, the PET acquisition time could be increased to match the usually more extensive MR protocol acquisition time. The gain in detected coincidences could be applied to decrease the PET tracer dose and thus the patient’s radiation burden, while maintaining the same image quality. In this study we investigate the minimal 68Ga-PSMA dose for a 15-minute single station PET(/MR) scan to match image quality of the standard 2 minutes scan at full dose.

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