TY  - JOUR
AU  - Costa de Castro, Maysa
AU  - Toroi, Paula
AU  - Kortesniemi, Mika
AU  - Lindholm, Carita
AU  - Pinto, Massimo
AU  - Rinaldi, Luigi
AU  - Tietäväinen, Aino
AU  - Tikkanen, Joonas
AU  - Živanović, Miloš
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13369
AB  - The effect of mammography measurement conditions was investigated to evaluate their impact on measurement uncertainties in clinical practice. The most prominent physical X-ray beam quantities i.e., air kerma, half-value layer, and X-ray tube voltage were examined by measuring the response of two ionization chambers and six X- ray multimeters (XMMs) of different models. Measurements were performed using several anode/filter combinations and both with and without the compression paddle in the X-ray beam. Maximum differences of higher than 6 % were found for all quantities when the dosimeter displayed value was compared with the reference value or the variation within the clinical anode/filter combinations Mo/Mo and Mo/Rh were considered. The study showed that the calibration procedure with the W/Al anode/filter combination was reliable only for ionization chambers, and the response of XMMs varies in such a way that the calibration coefficient cannot be predicted between various measurement conditions used in calibration and clinical practices. XMM calibrations are typically performed without a compression paddle in the beam, and the response of the XMM changes when radiation quality is slightly altered. If XMM specific data is not available, based on this study, an additional uncertainty of 2 % (k = 1) could be used as a typical estimate, at least for air kerma measurements. XMMs should be used for clinical measurements in mammography only with correct settings. If the correct settings are not available, the XMMs should not be used or used only with extreme caution.
T2  - Physica Medica
T1  - Impact of the measurement conditions and compression paddle on mammography dosimeter response
VL  - 123
SP  - 103405
DO  - 10.1016/j.ejmp.2024.103405
ER  - 

@article{
author = "Costa de Castro, Maysa and Toroi, Paula and Kortesniemi, Mika and Lindholm, Carita and Pinto, Massimo and Rinaldi, Luigi and Tietäväinen, Aino and Tikkanen, Joonas and Živanović, Miloš",
year = "2024",
abstract = "The effect of mammography measurement conditions was investigated to evaluate their impact on measurement uncertainties in clinical practice. The most prominent physical X-ray beam quantities i.e., air kerma, half-value layer, and X-ray tube voltage were examined by measuring the response of two ionization chambers and six X- ray multimeters (XMMs) of different models. Measurements were performed using several anode/filter combinations and both with and without the compression paddle in the X-ray beam. Maximum differences of higher than 6 % were found for all quantities when the dosimeter displayed value was compared with the reference value or the variation within the clinical anode/filter combinations Mo/Mo and Mo/Rh were considered. The study showed that the calibration procedure with the W/Al anode/filter combination was reliable only for ionization chambers, and the response of XMMs varies in such a way that the calibration coefficient cannot be predicted between various measurement conditions used in calibration and clinical practices. XMM calibrations are typically performed without a compression paddle in the beam, and the response of the XMM changes when radiation quality is slightly altered. If XMM specific data is not available, based on this study, an additional uncertainty of 2 % (k = 1) could be used as a typical estimate, at least for air kerma measurements. XMMs should be used for clinical measurements in mammography only with correct settings. If the correct settings are not available, the XMMs should not be used or used only with extreme caution.",
journal = "Physica Medica",
title = "Impact of the measurement conditions and compression paddle on mammography dosimeter response",
volume = "123",
pages = "103405",
doi = "10.1016/j.ejmp.2024.103405"
}

Costa de Castro, M., Toroi, P., Kortesniemi, M., Lindholm, C., Pinto, M., Rinaldi, L., Tietäväinen, A., Tikkanen, J.,& Živanović, M.. (2024). Impact of the measurement conditions and compression paddle on mammography dosimeter response. in Physica Medica, 123, 103405.
https://doi.org/10.1016/j.ejmp.2024.103405

Costa de Castro M, Toroi P, Kortesniemi M, Lindholm C, Pinto M, Rinaldi L, Tietäväinen A, Tikkanen J, Živanović M. Impact of the measurement conditions and compression paddle on mammography dosimeter response. in Physica Medica. 2024;123:103405.
doi:10.1016/j.ejmp.2024.103405 .

Costa de Castro, Maysa, Toroi, Paula, Kortesniemi, Mika, Lindholm, Carita, Pinto, Massimo, Rinaldi, Luigi, Tietäväinen, Aino, Tikkanen, Joonas, Živanović, Miloš, "Impact of the measurement conditions and compression paddle on mammography dosimeter response" in Physica Medica, 123 (2024):103405,
https://doi.org/10.1016/j.ejmp.2024.103405 . .