| 肺血管磁共振成像的对比研究 |
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| 引用本文： | 李刚,曾纪珍.肺血管磁共振成像的对比研究[J].湖南医科大学学报,2000,25(2):173-175. |
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| 作者姓名： | 李刚 曾纪珍 |
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| 摘 要： | 用１．０Ｔｅｓｌａ超导ＭＲ仪，体外圈技术，对４６例志愿者进行２ＤｔｕｒｂｏＦＬＡＳＨ和／或３ＤＦＩＳＰ肺释ＭＲＡ成像共１１３次，分４组进行分析统计。结果显示：Ｇｄ－ＤＴＰＡ增强后的２Ｄ和３Ｄ－ＴＯＦ ＭＲＡ信噪比明显高于未使用Ｃｄ－ＤＴ－ＰＡ的ＭＲＡ信噪比（Ｐ〈０．０１）；２Ｄ－ＴＯＦ ＭＲＡ增强后所显示的左、右肺动脉分支数量（险左叶舌段）明显多于增强前（Ｐ〈０．０５）；３Ｄ－ＴＯＰ ＭＲＡ增强后
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| 关 键 词： | 磁共振成像 肺动脉 NMR 成像 |
Comparative study of pulmonary magnetic resonance angiography (MRA)] |
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| G Li,J Z Zeng,X Y Wang,R W Wang,J L Li.Comparative study of pulmonary magnetic resonance angiography (MRA)][J].Bulletin of Hunan Medical University,2000,25(2):173-175. |
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| Authors: | G Li J Z Zeng X Y Wang R W Wang J L Li |
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| Institution: | Department of Radiology, Xiangya Hospital, Hunan Medical University, Changsha 410008. |
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| Abstract: | Imaging was performed using a 1.0 Tesla superconducting MR system with a body coil. Two-dimensional(2D) turbo FLASH sequence and/or three-dimensional(3D) FISP sequence were carried out in 46 volunteers with 113 pulmonary MRA. The total MRAs were divided into 4 groups and analysed. The results showed: After Gd-DTPA was injected, the signal-to-noise ratio(SNR) of pulmonary 2D- and 3D-TOF MRA was increased in 46 normal pulmonary MR angiography cases(P < 0.01); the number of left and right pulmonary artery divisions identified was much greater than that before Gd-DTPA injection both in 2D- and 3D-MOF(except lingual segment of left lobe). It is suggested that Gd-DTPA may markedly promote the efficiency of pulmonary MRA. |
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