| 调整螺距对64层螺旋CT冠状动脉成像图像质量的影响 |
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| 引用本文： | 李翔,金朝林,张树桐. 调整螺距对64层螺旋CT冠状动脉成像图像质量的影响[J]. 中华放射医学与防护杂志, 2007, 29(1): 323-325. DOI: 10.3760/cma.j.issn.0254-5098.2009.03.029 |
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| 作者姓名： | 李翔 金朝林 张树桐 |
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| 作者单位： | 武汉市中心医院影像科,430014; |
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| 摘 要： | Objective To investigate the impact of imaging quality of pitch on coronary CT angiography (CTA) with 64-detector row CT. Methods 566 patients were divided into four groups according to heart rate (≤ 50,51-70,71 ～ 80 and ≥ 80 bpm). Three dimensional reconstructions were used such as volume rendering (VR) ,maximum intensity projection(MIP) and curved planar reformation(CPR). Each group was divided into control group and cxperimential group randomly, using normal pitch and revised pitch respectively, and the imaging quality and influencing factons were analyzed among the four groups. Results There was significant difference in imaging quality among the four groups (P < 0.05). Each group had difference in imaging quality with normal pitch and revised pitch. Conclusions The revised pitch helps to improve the imaging quality and meet the demand of diagnosis.
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| 关 键 词： | 冠状动脉 血管造影术 体层摄影术 X线断层扫描 螺距 |
Impact of imaging quality of change pitch on coronary CTA with 64-detector row CT |
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| LI Xiang,JIN Chao-lin,ZHANG Shu-tong. Impact of imaging quality of change pitch on coronary CTA with 64-detector row CT[J]. Chinese Journal of Radiological Medicine and Protection, 2007, 29(1): 323-325. DOI: 10.3760/cma.j.issn.0254-5098.2009.03.029 |
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| Authors: | LI Xiang JIN Chao-lin ZHANG Shu-tong |
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| Abstract: | |
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| Keywords: | Coronary arteryAngiographyTomographyX-ray computed tomographyPitch |
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