Hygiena 2019, 64(3):96-104 | DOI: 10.21101/hygiena.a1710

Optimization of the protection of medical staff in working with open source ionizing radiation on PET/CT in the University Hospital Ostrava

Renáta Kohutová1, Martin Havel2, Vítězslav Jiřík1, Hana Materová1,2, Jana Golisová2, Vojtěch Ullmann1,2
1 Ostravská univerzita v Ostravě, Lékařská fakulta, Ústav epidemiologie a ochrany veřejného zdraví, Ostrava, Česká republika
2 Fakultní nemocnice Ostrava, Klinika nukleární medicíny, Ostrava, Česká republika

Aim: The aim of the study was to evaluate the optimization of radiation protection related to work with open positron sources on the newly opened PET/CT department in the Clinic of Nuclear Medicine at the University Hospital Ostrava (KNM FNO).

Methods: We compared retrospectively the values from the personal dosimetry of employees, who participated on the PET/CT examinations over the time period from January 2014 to April 2018. For monitoring purposes there were used personal OSL dosimeters and finger TLD dosimeters. The results of personal dosimetry were processed by the dedicated service of VF Černá Hora. The construction of the premises was assessed according to the project documentation.

Results: The average personal dose equivalent Hp (10) increased by 50.83% after the starting of the PET/CT, when compared with the time period of January-August 2017. This represents an average increase for 0.0154 mSv per employee. On the contrary, the dose to the hands decreased in the observed period on average by 0.587 mSv, this led to the decrease of the radiation dose to the skin by 23.53%. The Hp (10) value increased by 6.84% on average in January-April 2018 and the HT-average skin dose in the same period decreased by 7.19%.

Conclusion: The radiation protection of the newly established PET/CT department in KNM FNO can be considered to be optimised; specified limits for the radiation workers were not exceeded.

Keywords: health care providers, ionising radiation, occupational health protection

Received: January 2019; Accepted: June 27, 2019; Published: August 20, 2019  Show citation

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Kohutová R, Havel M, Jiřík V, Materová H, Golisová J, Ullmann V. Optimization of the protection of medical staff in working with open source ionizing radiation on PET/CT in the University Hospital Ostrava. Hygiena. 2019;64(3):96-104. doi: 10.21101/hygiena.a1710.
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