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Updated: Jun 6, 2026

A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy (PRRT): 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods
Published on: April 24, 2020
A high-sensitivity multidetector whole-body counter
J A Kalef-Ezra1, S T Valakis, T Soupsanas
1Medical Physics Laboratory, Medical School, University of Ioannina, Ioannina 45110, Greece. jkalef@cc.uoi.gr
Abstract:
A prototype multidetector shadow-shield whole-body counter is presented to be used as a monitor of internal contamination and as a tool in clinical research. The counter is equipped with 16 NaI(Tl) detectors located in the central region of a shielded tunnel surrounding the subject to be measured. The accuracy of the counting efficacy predictions was tested in a group of adults with various body shapes and sizes using X-ray absorptiometry. The precision of the total body potassium measurements allows the use of the counter in clinical follow-up studies.
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