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논문 기본 정보

자료유형
학술저널
저자정보
Yon Kwon Ihn (The Catholic University of Korea) 김범수 (가톨릭대학교) 정해웅 (인제대학교) 서상현 (연세대학교) 원유동 (가톨릭대학교) 이영준 (한양대학교) 김동준 (연세대학교) 전평 (삼성서울병원) 류창우 (강동경희대학교병원) 서상일 (고대대학교 구로병원) 최대섭 (경상국립대학교) 최시성 (원광대학교) 김상흠 (분당차병원) 변준수 (중앙대학교) 노지은 (양산부산대학교병원) 송윤선 (서울아산병원) 정우상 (아주대학교) 홍노아 (서울대학교병원) 백상현 (서울대학교) 박정진 (건국대학교병원) 임수미 (이화여자대학교) 김정재 (이화여자대학교) 윤웅 (전남대학교)
저널정보
대한신경중재치료의학회 Neurointervention Neurointervention Vol.16 No.3
발행연도
2021.11
수록면
240 - 251 (12page)
DOI
https://doi.org/10.5469/neuroint.2021.00437

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초록· 키워드

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Purpose: To assess patient radiation doses during diagnostic and therapeutic neurointerventional procedures from multiple centers and propose dose reference level (RL). Materials and Methods: Consecutive neurointerventional procedures, performed in 22 hospitals from December 2020 to June 2021, were retrospectively studied. We collected data from a sample of 429 diagnostic and 731 therapeutic procedures. Parameters including dose-area product (DAP), cumulative air kerma (CAK), fluoroscopic time (FT), and total number of image frames (NI) were obtained. RL were calculated as the 3rd quartiles of the distribution. Results: Analysis of 1160 procedures from 22 hospitals confirmed the large variability in patient dose for similar procedures. RLs in terms of DAP, CAK, FT, and NI were 101.6 Gy·cm2, 711.3 mGy, 13.3 minutes, and 637 frames for cerebral angiography, 199.9 Gy·cm2, 3,458.7 mGy, 57.3 minutes, and 1,000 frames for aneurysm coiling, 225.1 Gy·cm2, 1,590 mGy, 44.7 minutes, and 800 frames for stroke thrombolysis, 412.3 Gy·cm2, 4,447.8 mGy, 99.3 minutes, and 1,621.3 frames for arteriovenous malformation (AVM) embolization, respectively. For all procedures, the results were comparable to most of those already published. Statistical analysis showed male and presence of procedural complications were significant factors in aneurysmal coiling. Male, number of passages, and procedural combined technique were significant factors in stroke thrombolysis. In AVM embolization, a significantly higher radiation dose was found in the definitive endovascular cure group. Conclusion: Various RLs introduced in this study promote the optimization of patient doses in diagnostic and therapeutic interventional neuroradiology procedures. Proposed 3rd quartile DAP (Gy·cm2) values were 101.6 for diagnostic cerebral angiography, 199.9 for aneurysm coiling, 225.1 for stroke thrombolysis, and 412.3 for AVM embolization. Continual evolution of practices and technologies requires regular updates of RLs.

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