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http://dx.doi.org/10.17946/JRST.2016.39.3.03

Evaluation of the Fetal Dose during Prophylactic Placement of Internal Iliac Artery Balloon Occlusion Catheters in Placenta Accreta  

Kim, Dong-Sik (Dept. of Diagnostic Radiology, Gachon University Gil hospital)
Ahn, Sung-Min (Dept. of Radiological Science, Gachon University)
Publication Information
Journal of radiological science and technology / v.39, no.3, 2016 , pp. 313-321 More about this Journal
Abstract
Placenta accrete patients whose mother mortality rates are rather high due to massive bleeding during childbirth need to have Prophylactic placement of Internal Iliac Artery Balloon Occlusion Catheters procedure to reduce amount of blood loss and inoperative transfusion. Nevertheless, studies for mothers inevitably exposed to dose during PIIABOCs procedure have not been published many yet. Therefore, this study is to investigate exact information on radiation dose exposed to fetus during PIIABOCs procedure. Average effective dose of fetus per organ is 2.38~8.83 mGy, measured highest at beam center and followed by eyeball, stomach and bladder. The result showed that the longer fluoroscopy time is used, the closer beam center is and the thicker abdominal thickness is, the more effective dose on fetus is increasing. When using the collimator and protection shown to decrease the effective dose and when using higher the patient table shown to decrease the effective dose. It has been reported that the threshold of deterministic effect is about 100mGy. Deterministic effect was regarded as a factor that would influence on fetus exposed by medical radiation than stochastic effect. Consequently, it concluded that dose exposed on fetus in PIIABOCs procedure was approximately 10% of threshold of deterministic effect with effective dose of 0.49~18.27 mGy.
Keywords
Placenta Accreta; Prophylactic Placement of Internal Iliac Artery Balloon Occlusion Catheters(PIIABOCs); Dose of Fetus;
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