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智能追踪技术触发阈值对肾动脉CT血管成像的影响
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
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
作者单位:重庆医科大学附属第一医院放射科,重庆,400016
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。

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
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
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
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
Abstract:
Keywords:Renal artery  Tomography, X-ray computed  Monitored-triggered technique
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