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KMID : 1038720190300040150
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Progress in Medical Physics
2019 Volume.30 No. 4 p.150 ~ p.154
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The Accuracy of the Calculated Dose for a Cardiac Implantable Electronic Device
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Sung Ji-Won
Son Jae-Man
Park Jong-Min
Kim Jung-In
Choi Chang-Heon
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Abstract
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The objective of this study is to monitor the radiation doses delivered to a cardiac implantable electronic device (CIED) by comparing the absorbed doses calculated by a commercial treatment planning system (TPS) to those measured by an in vivo dosimeter. Accurate monitoring of the radiation absorbed by a CIED during radiotherapy is necessary to prevent damage to the device. We conducted this study on three patients, who had the CIED inserted and were to be treated with radiotherapy. Treatment plans were generated using the Eclipse system, with a progressive resolution photon optimizer algorithm and the Acuros XB dose calculation algorithm. Measurements were performed on the patients using optically stimulated luminescence detectors placed on the skin, near the CIED. The results showed that the calculated doses from the TPS were up to 5 times lower than the measured doses. Therefore, it is recommended that in vivo dosimetry be conducted during radiotherapy for CIED patients to prevent damage to the CIED.
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KEYWORD
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In vivo dosimetry, Arrhythmia, Cardiac, Clinical study
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