TO USE OR NOT USE PATIENT SHIELDING ON PREGNANT WOMEN UNDERGOING CT PULMONARY ANGIOGRAPHY: A PHANTOM STUDY

Dino Begano; Marcus Soederberg; Anetta Bolejko

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TO USE OR NOT USE PATIENT SHIELDING ON PREGNANT WOMEN UNDERGOING CT PULMONARY ANGIOGRAPHY: A PHANTOM STUDY

机译：使用或不使用患者屏蔽CT肺血管造影的孕妇：幻影研究

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Pregnancy increases the risk of pulmonary embolism. Computed tomography pulmonary angiography (CTPA) is used for diagnosis. CT generates ionising radiation, and thus, abdominal shielding may be used. This phantom study investigated the effects of patient shielding and scan length reduction on the fetal and maternal ionising radiation dose from CTPA. The absorbed dose to the fetus was measured using thermoluminescent dosemeters. Estimated effective doses to the pregnant patient were based on the dose-length products. Shielding increased both the effective dose to the patient by 47% and the mean absorbed dose to the fetus (0.10 vs. 0.12 mGy; p ＜ 0.001) compared with unshielded standard CTPA, as it affected the automatic exposure control. Shielded short CTPA marginally lowered only the mean fetal absorbed dose (0.03 vs. 0.02 mGy; p = 0.018). Shortening the scan reduced the fetal absorbed dose most effectively by 70% (0.10 vs. 0.03 mGy; p = 0.006), compared with the standard unshielded scan. Shielding modestly reduces fetal radiation dose but may compromise automatic exposure control, possibly increasing the maternal and fetal radiation dose. Shortening the scan is beneficial, assuming anatomical coverage is secured.

机译：妊娠增加了肺栓塞的风险。计算机断层扫描肺血管造影（CTPA）用于诊断。 CT产生电离辐射，因此，可以使用腹部屏蔽。该幻影研究调查了患者屏蔽和扫描长度降低从CTPA对胎儿和母体电离辐射剂量的影响。使用热敏发光剂量计测量胎儿的吸收剂量。对怀孕患者的估计有效剂量基于剂量长度产品。屏蔽向患者的有效剂量增加了47％，并且与非屏蔽标准CTPA相比，胎儿的平均吸收剂量（0.10 Vs.0.12 MGO; P <0.001），因为它影响了自动暴露控制。屏蔽短CTPA仅降低平均胎儿吸收剂量（0.03与0.02 mgs; P = 0.018）。与标准的非屏蔽扫描相比，缩短扫描将胎儿吸收剂量降低70％（0.10 vs.0.03 MGO; P = 0.006）。屏蔽适度降低胎儿辐射剂量，但可能会损害自动暴露控制，可能增加母体和胎儿辐射剂量。缩短扫描是有益的，假设确保解剖覆盖。

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《Radiation Protection Dosimetry》 |2020年第4期|458-465|共8页
作者
Dino Begano; Marcus Soederberg; Anetta Bolejko;
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Department of Medical Imaging and Physiology Skane University Hospital Malmo SE-205 02 Sweden;

Medical Radiation Physics Department of Translational Medicine Lund University Malmoe SE-205 02 Sweden Radiation Physics Department of Hematology Oncology and Radiation Physics Skane University Hospital Malmoe SE-205 02 Sweden;

Department of Medical Imaging and Physiology Skane University Hospital Malmo SE-205 02 Sweden Department of Health Sciences Lund University Lund SE-221 00 Sweden;

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收录信息美国《科学引文索引》(SCI);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
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1. Qualitative evaluation of pulmonary CT angiography findings in pregnant and postpartum women with suspected pulmonary thromboembolism [J] . Moradi Maryam, Monfared Leyla Jalali Journal of research in medical sciences : . 2015,第11期

机译：对怀疑有肺血栓栓塞的孕妇和产后妇女的肺部CT血管造影结果的定性评估
2. QUALITATIVE EVALUATION OF PULMONARY CT ANGIOGRAPHY FINDINGS IN PREGNANT AND POSTPARTUM WOMEN WITH SUSPECTED PULMONARY THROMBOEMBOLISM [J] . MORADI MARYAM, JALALI MONFARED LEYLA Journal of research in medical sciences : . 2015,第11期

机译：疑似肺栓塞孕妇和产后肺CT血管造影结果的定性评价。
3. Outcomes of negative multidetector computed tomography with pulmonary angiography in pregnant women suspected of pulmonary embolism [J] . BourjeilyG., KhalilH., RakerC., Lung. . 2012,第1期

机译：疑似肺栓塞孕妇的多检测器计算机断层扫描与肺血管造影阴性结果
4. A Pregnant Women Vest and Window Curtain as an RF Electromagnetic Shielding [C] . Nur Liana Aqilah Azhar, Rusnani Ariffin, Hasnain Abdullah, IEEE Symposium on Industrial Electronics and Applications . 2014

机译：孕妇背心和窗帘作为RF电磁屏蔽
5. Validation of time-resolved Digital Subtraction Angiography using patient specific 3D printed neurovascular phantoms. [D] . Balasubramoniam, Anusha. 2016

机译：使用患者特定的3D打印的神经血管幻象验证时间分辨的数字减影血管造影术。
6. TO USE OR NOT USE PATIENT SHIELDING ON PREGNANT WOMEN UNDERGOING CT PULMONARY ANGIOGRAPHY: A PHANTOM STUDY [O] . Dino Begano, Marcus Söderberg, Anetta Bolejko -1

机译：使用或不使用患者屏蔽CT肺血管造影的孕妇：幻影研究
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TO USE OR NOT USE PATIENT SHIELDING ON PREGNANT WOMEN UNDERGOING CT PULMONARY ANGIOGRAPHY: A PHANTOM STUDY

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