孕期植入 CRT 起搏器：胎儿辐射剂量估算。

Pub Date : 2024-09-19 DOI:10.1093/rpd/ncae182

Anna-Leena Manninen, Jukka Järvinen, Joanna Sierpowska, Timo J Mäkelä, Tuomas T Rissanen

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引用次数: 0

摘要

众所周知，心脏再同步化疗法（CRT）植入对严重心力衰竭患者有好处，在怀孕期间也可考虑植入，以确保母亲和胎儿的安全妊娠和分娩。本研究针对一例患者，旨在估算孕妇在第 21 周植入 CRT 时胎儿的吸收剂量（AD）。吸收剂量的测量采用了拟人化模型、放射光剂量计和蒙特卡洛模拟，利用的是手术过程中的切口面积乘积（KAP）。测得的模型子宫和心脏的 AD 分别为 0.116 和 14.7 mGy，总 KAP 为 27.9 Gycm2。估计胎儿和母亲心脏的实际 AD 分别为 0.004 和 1.2 mGy，总 KAP 为 1.5 Gycm2。通过优化程序，可将胎儿所受剂量降至最低。

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Implantation of CRT pacemaker during pregnancy: estimated fetal radiation dose.

The benefits of a cardiac resynchronization therapy (CRT) implantation are known in severe heart failure and its implantation may also be considered during pregnancy to ensure safe pregnancy and delivery for both the mother and the fetus. This study on a patient case aimed to estimate the absorbed dose (AD) to the fetus during the CRT implantation of 21st week of the pregnant woman. AD measurement was done using anthropomorphic phantom, radiophotoluminescence dosemeters and Monte Carlo simulation utilizing kerma area product (KAP) of the procedures. The measured AD for a phantom's uterus and heart was 0.116 and 14.7 mGy with total KAP of 27.9 Gycm2. The estimated actual AD to the fetus and the mother's heart was 0.004 and 1.2 mGy, with total KAP of 1.5 Gycm2. The dose to the fetus can be minimized with the optimized procedure.

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