| XUE Yue-jun,QIAN Nong,SHAO Yan-hui,et al.Cerebral angiography with prospective ECG triggering preliminary study of dual-source CT[J].Chinese Journal of Radiological Medicine and Protection,2012,32(3):326-328 |
| Cerebral angiography with prospective ECG triggering preliminary study of dual-source CT |
| Received:November 11, 2011 |
| DOI：10.3760/cma.j.issn.0254-5098.2012.03.027 |
| KeyWords:Cerebral CTA X-ray computed tomography Radiation dose Image quality |
| FundProject: |
| Author Name | Affiliation | | XUE Yue-jun | Department of Radiology, Changzhou NO.2 People's Hospital, Changzhou 213003, China | | QIAN Nong | Department of Radiology, Changzhou NO.2 People's Hospital, Changzhou 213003, China | | SHAO Yan-hui | Department of Radiology, Changzhou NO.2 People's Hospital, Changzhou 213003, China | | PAN Chang-jie | Department of Radiology, Changzhou NO.2 People's Hospital, Changzhou 213003, China | | RONG Wei-liang | Department of Radiology, Changzhou NO.2 People's Hospital, Changzhou 213003, China | | XU Yi-qun | Department of Radiology, Changzhou NO.2 People's Hospital, Changzhou 213003, China |
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| Abstract:: |
| Objective To study the image quality and radiation dose in dual-source CT cerebral angiography with prospective ECG-triggered sequence mode (step-and-shoot, SAS).Methods A total of forty-three patients with clinically suspected cerebral vascular disease underwent cerebral CT angiography with prospective ECG-triggering (step-and-shoot,SAS). Data acquisition was at 60% R-R interval of the ECG presentation mode. The post-processing included maximum intensity projection (MIP), multiplanar reformation (MPR) and volume rendering (VR). The CTA image quality, radiation dose and rates of excellent images were evaluated.Results The CTA image quality score was 4.72±0.50 and 97.7% (42/43) patients had excellent CTA images. The average effective dose of SAS-CTA was (0.22±0.01) mSv,which was lower by 76.31% than that of DE-CTA.Conclusions Prospective ECG-triggering sequence could be used in cerebral angiography with a significant reduction in radiation dose and diagnostic image quality. |
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