| 智能追踪技术触发阈值对肾动脉CT血管成像的影响 |
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| 引用本文： | 阚晓婧,罗天友,吕发金,李咏梅,方维东,肖智博,张志伟,陆云峰. 智能追踪技术触发阈值对肾动脉CT血管成像的影响[J]. 中国医学影像技术, 2008, 24(5): 721-724 |
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| 作者姓名： | 阚晓婧 罗天友 吕发金 李咏梅 方维东 肖智博 张志伟 陆云峰 |
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| 作者单位： | 重庆医科大学附属第一医院放射科,重庆,400016 |
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| 摘 要： | 目的探讨智能追踪技术中触发阈值对肾动脉CT血管造影图像质量及其分支显示的影响。方法105例患者随机分组,分别按触发阈值140-150HU（A）、150-160HU（B）、160-170HU（C）、170-180HU（D）、180-190HU（E）、190-200HU（F）、200-210HU（G）启动扫描,采用GE公司64层容积CT、按3ml/s的流率团注碘海醇300（300mgI/ml）,其他扫描参数相同,数据传至工作站并重建。由2名经验丰富的影像医师对MIP图像记录和评分。所有数据资料均采用SPSS11.5软件统计分析。结果①图像质量：以D组和E组评分最高。②肾动脉分支的显示：以E组和F组肾动脉主干显示最佳;D组、E组和F组肾动脉主干和一级分支显示最佳：各组对二级、三级分支显示均不佳。结论Smart Prep技术中不同触发阈值对肾动脉CTA扫描质量有显著影响,触发阈值为170-190HU时图像质量最好、各级分支显示最佳。
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| 关 键 词： | 肾动脉 体层摄影术,X线计算机 智能追踪技术 智能 追踪技术 触发阈值 肾动脉 血管成像 影响 arteries renal CT angiography Volume technique based acquisition threshold different 质量 Smart Prep 最佳 动脉分支 |
| 文章编号： | 1003-3289(2008)05-0721-04 |
| 收稿时间： | 2007-12-26 |
| 修稿时间： | 2007-12-26 |
Volume CT angiography of the renal arteries: the effect of different threshold of triggered angiographic acquisition based on a bolus-tracking technique |
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| KAN Xiao-jing,LUO Tian-you,LV Fa-jin,LI Yong-mei,FANG Wei-dong,XIAO Zhi-bo,ZHANG Zhi-wei and LU Yun-feng. Volume CT angiography of the renal arteries: the effect of different threshold of triggered angiographic acquisition based on a bolus-tracking technique[J]. Chinese Journal of Medical Imaging Technology, 2008, 24(5): 721-724 |
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| Authors: | KAN Xiao-jing LUO Tian-you LV Fa-jin LI Yong-mei FANG Wei-dong XIAO Zhi-bo ZHANG Zhi-wei LU Yun-feng |
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| Affiliation: | Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China;Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China;Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China;Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China;Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China;Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China;Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China;Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China |
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| Abstract: | |
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| Keywords: | Renal artery Tomography, X-ray computed Monitored-triggered technique |
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