| 低剂量CT肺动脉造影的临床研究 |
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| 引用本文： | 姜英健,于铁链,戴亚楠,刘长宏,苏大同. 低剂量CT肺动脉造影的临床研究[J]. 天津医科大学学报, 2010, 16(1): 166-170 |
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| 作者姓名： | 姜英健 于铁链 戴亚楠 刘长宏 苏大同 |
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| 作者单位： | 天津医科大学总医院放射科,天津,300052 |
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| 摘 要： | 目的：在临床肺栓塞（PE）病例中验证低剂量CT肺动脉造影（CTPA）的效果。方敞：使用标准剂量（管电流280mA）和低剂量（60mA或30mA）对可疑PE患者实行双期CTPA检查，共获得阳性病例（至少显示一个肺动脉栓子）33例，共47例次（其中14例为复查），按低剂量条件（60mA或30mA）分为两组，去除所有患者及参数信息，随机排列，请3位放射科医师独立阅读，记录结果，并进行统计学分析。结果：读者本身及读者间一致性（Kappa值）达中等一致性以上（Kappa≥0．4）；不确定结果和阳性结果于读者之间出现统计学差异，但与管电流水平无关；60mA和30mA组均具有较高的敏感度、特异度；血管内造影效果评分于30mA组出现统计学差异（P〈O．001），而60mA组无统计学差异。结论：低剂量CTPA是可行的，60mA管电流设置可常规应用于肺动脉栓塞复查患者。
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| 关 键 词： | 肺栓塞 低剂量 计算机体层摄影 CT肺动脉造影 |
Low-dose computed tomography pulmonary angiography:Clinical investigation |
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| JIANG Ying-jian,YU Tie-lian,DAI Ya-nan,LIU Chang-hong,SU Da-tong. Low-dose computed tomography pulmonary angiography:Clinical investigation[J]. Journal of Tianjin Medical University, 2010, 16(1): 166-170 |
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| Authors: | JIANG Ying-jian YU Tie-lian DAI Ya-nan LIU Chang-hong SU Da-tong |
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| Affiliation: | JIANG Ying-jian,YU Tie-lian,DAI Ya-nan,LIU Chang-hong,SU Da-tong (Department of Radiology,General Hospital,Tianjin Medical University,Tianjin 300052,China) |
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| Abstract: | Objective:To validate the result of low-dose CTPA in clinical PE cases.Methods:Suspicious patients were executed double-period PE examination by using conventional tube current (280 mA) and low-dose (60 mA or 30 mA).47 positive case were attained (display one embolism of pulmonary artery at least) which were divided into two group according to low-dose condition (60 mA or 30 mA).Three radiologists independently read all information by using assessed the image sets in random,record results and perform statis... |
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| Keywords: | Pulmonary embolism Low dose Computed tomography CT pulmonary angiography |
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