Radiation Exposure Associated with Preoperative Multidetector Computed Tomography of Pulmonary Vein Isolation
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概要
- 論文の詳細を見る
<B>Background:</B> Multidetector computed tomography (MDCT) visualization of the pulmonary veins (PV) and left atrium provides the necessary anatomic information for successful left atrial ablation and PV isolation. However, the potential risks due to exposure to ionizing radiation associated with MDCT have raised concerns. <B>Objectives:</B> The purpose of this study was to compare radiation exposure between prospective and retrospective ECG-gated CT angiography (hereafter, prospective CTA, retrospective CTA). <B>Methods:</B> The 64-slice MDCT (Discovery CT 750HD, GE Healthcare) was performed 78 consecutive patients. Twenty-eight patients were analyzed by prospective CTA using <B>step-and-shoot</B> protocol, and 50 patients were analyzed by retrospective CTA. <B>Results:</B> Mean (±SD) effective radiation exposure in the prospective CTA group was 2.2±0.8 mSv compared to 15.4±5.9 mSv in the retrospective CTA group (p<0.001). <B>Conclusion:</B> In preoperative evaluation of PV isolation, prospective CTA can reduce radiation exposure than retrospective CTA.
著者
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Nakamura Kentaro
Department of Cardiology, Kyorin University School of Medicine
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Ohira Hiroshi
Department Of Cardiology Edogawa Hospital
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Kikuchi Tatsuo
Department of Cardiology, Edogawa Hospital
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Nakata Masaya
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Fujita Masaki
Department Of Bacteriology Faculty Of Medicine Kyushu University
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Chinen Toshiya
Department Of Cardiology Edogawa Hospital
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Keida Takehiko
Department Of Cardiology Edogawa Hospital
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Kato Takahiro
Department Of Cardiology Keio University School Of Medicine
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Yamashita Tatsuya
Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science
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Nakata Marohito
Department of Cardiology, Edogawa Hospital
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Nishikido Toshiyuki
Department of Cardiology, Edogawa Hospital
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Meguro Kentaro
Department of Cardiology, Edogawa Hospital
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Nakata Masaya
Department of Cardiology, Edogawa Hospital
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Nakamura Kentaro
Department of Cardiology, Edogawa Hospital
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