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Updated: Jan 5, 2026

An Automated Microscopic Scoring Method for the γ-H2AX Foci Assay in Human Peripheral Blood Lymphocytes
Published on: December 25, 2021
Dose to Medical Personnel
M A Misdaq1, H Harrass1, H Saikouk2
1Nuclear Physics and Techniques Laboratory, Faculty of Sciences, Semlalia, University of Cadi Ayyad, Marrakech, Morocco.
Abstract:
Radioiodine I is successfully used in nuclear medicine for the treatment of hyperthyroidism and thyroid cancer. This radionuclide emits β particles used for the treatment and gamma photons used for diagnosis. The aim of this study is to determine gamma radiation doses received by medical personnel situated at a distance of 1 m from patients having ingested I for the treatment of hyperthyroidism diseases. Indeed, gamma doses were calculated using a Monte Carlo code based on simulating the interaction processes of gamma photons emitted by I in the thyroid gland, air, and an ambient flow meter placed at a distance of 1 m from the thyroid gland to measure the administered I activity. The thyroid volume of patients was measured by means of a gamma camera. Gamma dose equivalent rates were measured by means of an ambient flow meter situated at a distance of 1 m from the thyroid of the treated patients. Data obtained by the Monte Carlo and experimental methods were found to be in good agreement with each other.
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