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首页> 外文期刊>Radiation Protection Dosimetry >PATIENT RADIATION DOSES IN CARDIAC COMPUTED TOMOGRAPHY: COMPARISON OF PUBLISHED RESULTS WITH PROSPECTIVE AND RETROSPECTIVE ACQUISITION
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PATIENT RADIATION DOSES IN CARDIAC COMPUTED TOMOGRAPHY: COMPARISON OF PUBLISHED RESULTS WITH PROSPECTIVE AND RETROSPECTIVE ACQUISITION

机译：心脏计算机体层摄影术中的患者放射剂量：预期结果与回顾性获取结果比较

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摘要

Prospective ECG triggering has the potential of reducing radiation exposure while maintaining diagnostic accuracy of cardiac computed tomography (CT). The aim of this study is to review patient radiation doses associated with coronary artery calcium scoring (CACS) and CT coronary angiography (CTCA) and to compare results between prospective and retrospective acquisition schemes. Patient radiation doses from CACS and CTCA were extracted from 67 relevant studies. Mean effective dose for CACS and CTCA with prospective ECG triggering is significantly lower than retrospective acquisition, 0.9 + 0.4 vs. 3.1 ±1.4 mSv, p ＜ 0.001, and 3.4 ±1.4 vs. 11.1 ± 5.4 mSv, p＜ 0.001, respectively. In both cardiac CT examinations, application of dose modulation techniques result in significantly lower doses in retrospective schemes, however, even with dose modulation, retrospective acquisition is associated with significantly higher doses than prospective acquisition. The number of slices acquired per rotation and the number of X-ray sources of the CT scanner (single or dual source) do not have a significant effect on patient dose.
机译：前瞻性心电图触发有可能减少辐射暴露，同时保持心脏计算机断层扫描（CT）的诊断准确性。这项研究的目的是审查与冠状动脉钙评分（CACS）和CT冠状动脉造影（CTCA）相关的患者放射剂量，并比较预期和回顾性采集方案之间的结果。来自CACS和CTCA的患者放射剂量来自67项相关研究。具有前瞻性ECG触发的CACS和CTCA的平均有效剂量显着低于回顾性采集，分别为0.9 + 0.4 vs. 3.1±1.4 mSv，p ＜0.001，和3.4±1.4 vs 11.1±5.4 mSv，p ＜0.001。在两次心脏CT检查中，剂量调制技术的应用在回顾性方案中均会显着降低剂量，但是，即使采用剂量调制，回顾性获取的剂量也远高于预期性获取。每次旋转获取的切片数量和CT扫描仪的X射线源数量（单或双源）对患者剂量没有显着影响。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.83-91|共9页
  • 作者

    E. R Efstathopoulos; I. Pantos; S. Thalassinou; S. Argentos; N. L. Kelekis; T. Zografos; G. Panayiotakis; D. G. Katritsis;

  • 作者单位

    Second Department of Radiology, Medical School, University of Athens, General University Hospital ATTIKON', Rimini 1 Str., Chaidari, GR 124 62 Athens, Greece;

    Second Department of Radiology, Medical School, University of Athens, General University Hospital ATTIKON', Rimini 1 Str., Chaidari, GR 124 62 Athens, Greece,Athens Euroclinic, Athens, Greece;

    Second Department of Radiology, Medical School, University of Athens, General University Hospital ATTIKON', Rimini 1 Str., Chaidari, GR 124 62 Athens, Greece,Department of Medical Physics, University of Patras, Patras, Greece;

    Second Department of Radiology, Medical School, University of Athens, General University Hospital ATTIKON', Rimini 1 Str., Chaidari, GR 124 62 Athens, Greece;

    Second Department of Radiology, Medical School, University of Athens, General University Hospital ATTIKON', Rimini 1 Str., Chaidari, GR 124 62 Athens, Greece;

    Athens Euroclinic, Athens, Greece;

    Department of Medical Physics, University of Patras, Patras, Greece;

    Athens Euroclinic, Athens, Greece;

  • 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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