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Do fasting or high caloric drinks affect the physiological uptake of fluorine-18 prostate-specific membrane antigen-1007 in liver and bowel?

1 Department of Nuclear Medicine, University Hospital Münster, Münster, Germany
2 Department of Nuclear Medicine, Inselspital, University Hospital of Bern, Bern, Switzerland; Department of Nuclear Medicine, University Hospital of Heidelberg, Germany
3 Department of Urology, University Hospital Münster, Münster, Germany

Correspondence Address:
Kambiz Rahbar,
Department of Nuclear Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, 48149 Munster
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/wjnm.WJNM_6_19

Recently introduced fluorine-18 prostate-specific membrane antigen-1007 (18F-PSMA-1007) for imaging prostate cancer has an intense physiologic liver uptake and biliary excretion. The aim of the present study was to evaluate the effect of different dietary conditions on this physiological uptake. Forty consecutive prostate cancer patients were scanned with 18F-PSMA-1007 positron emission tomography/computed tomography at different dietary conditions. In addition to a blinded read scoring, tracer uptake intensities (standardized uptake values [SUVs]) were measured in the liver and small bowel. There was no significant difference in liver and small-bowel uptake between different patient groups. Wilcoxon signed-rank tests revealed no significant difference of the median mean SUV of the liver or maximum SUV of the horizontal part of the duodenum between different dietary conditions groups. A dietary preparation of patients by fasting or the attempt to clear liver activity by high caloric drinks does not have a significant effect on tracer uptake in the liver or in the small bowel.

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