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Updated: May 16, 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
Introduction to suspension levels: nuclear medicine
Stelios Christofides1, Lesley Malone, Soren Mattson
1Department of Medical Physics, Nicosia General Hospital, 219 Old Nicosia Limassol Road, 2029 Strovolos, Nicosia, Cyprus. cstelios@cytanet.com.cy
This study revises criteria for acceptable nuclear medicine equipment, updating 1997 guidelines. It presents a new methodology for establishing acceptability and suspension levels for radiation protection.
Area of Science:
- Medical Physics
- Radiation Protection
- Nuclear Medicine
Background:
- The European Commission (EC) initiated a revision of the 1997 Radiation Protection (RP) 91 report concerning criteria for radiological and nuclear medicine installations.
- A draft report was submitted to the EC, followed by a public consultation phase to gather feedback.
Purpose of the Study:
- To introduce the project aimed at revising the criteria for the acceptability of nuclear medicine equipment.
- To present the methodology developed for establishing acceptability and suspension levels for nuclear medicine equipment.
Main Methods:
- A group of experts was commissioned by the EC to revise the existing report.
- Public consultation feedback was considered to further improve the revised report.
- Methodology for devising acceptability/suspension levels for nuclear medicine equipment was developed.
Main Results:
- The revised report, intended for publication as RP 162, incorporates public consultation feedback.
- A novel methodology for setting acceptability and suspension levels for nuclear medicine equipment has been devised.
Conclusions:
- The project successfully revised the criteria for the acceptability of nuclear medicine installations.
- The developed methodology provides a framework for ensuring radiation protection standards in nuclear medicine.
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