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不同数量梯度磁场方向对正常脑白质纤维束扩散张量成像的比较定量研究 被引量：4

The Comparative Study on the Relationship between the Numbers of Gradients and Diffusion Tensor Imaging on Normal White Matter
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摘要 目的比较扩散张量成像中施加不同数量的梯度磁场方向对扩散的各向异性(FA)和表观扩散系数(ADC)参数的影响。资料与方法对24名正常人进行3.0 T磁共振扩散张量成像扫描,分别施加6个和25个方向的扩散敏感梯度磁场。分别测得2个梯度方向所获得FA图和ADC图的内囊前、后肢及胼胝体膝部、压部白质的FA与ADC值,进行比较。结果在其他扫描参数不变的情况下(b=01、000 s/mm2),6个方向与25个方向,相应部位的FA和ADC值的两组数据无显著差异。结论磁共振扫描选择扩散张量成像扫描参数时,在不影响各定量值测量的情况下,应尽量减少扫描时间,6个方向是扩散张量成像的较好选择。 Objective To compare the influence of different directions of gradients on FA and ADC in diffusion tensor imaging （DTI）. Materials and Methods 24 healthy volunteers were examined with a 3.0-T MRI. Fractional anisotropy（FA） and the Apparent Diffusion Coefficient（ADC） from bilateral internal capsule, the genu and spenium of corpus eallosum with 6 directions and 25 directions of gradient were measured and compared. Results Without changing of other scan parameters, FA and ADC from ROls of bilateral hemisphere with 6 and 25 directions were no significant difference in one subject. Conclusion The 6 directions and 25 directions of gradients does not influence measures of FA and ADC of DTI. It is desirable to use 6 direetions of measurements to reduce scanning time.
作者 邹立秋 张芳 屈辉 李大胜 张媛 谢敬霞
机构地区 北京大学第三临床医学院放射科 北京市海淀医院放射科
出处 《临床放射学杂志》 CSCD 北大核心 2005年第10期906-909,共4页 Journal of Clinical Radiology
关键词 磁共振成像 扩散张量 白质 梯度磁场 磁共振扩散张量成像 白质纤维束 梯度磁场 不同数量 正常脑 定量 表观扩散系数 扫描参数 ADC值 Magnetic resonance imaging Diffusion tensor White matter Diffusion-sensitivity gradient
分类号 R445.2 [医药卫生—影像医学与核医学] R322.8 [医药卫生—人体解剖和组织胚胎学]
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参考文献15

  • 1Wakana S, Jiang H, Nagae-Poetscher LM,et al. Fiber tract-based atlas of human white matter anatomy. Radiology, 2004, 230:77
  • 2李德军,包尚联,马林.不同b值和扩散张量成像导出量的定量关系研究[J].中华放射学杂志,2004,38(12):1238-1242. 被引量：26
  • 3Zhai GH, Lin WL, Kathy P,et al. Comparisons of regional white matter diffusion in healthy neonates and adults performed with a 3.0-T head-only MR imaging unit. Radiology, 2003, 229:673
  • 4Sullivan EV,Pfefferbaum A. Diffusion tensor imaging in normal aging and neuropsychiatric disorders. Eur Radiol, 2003, 45:244
  • 5于春水,李坤成,李永忠,梁志刚,秦文,刘嘉宾.人脑投射纤维弥散张量纤维束成像的初步研究[J].临床放射学杂志,2004,23(7):558-561. 被引量：3
  • 6Neil J, Miller J, Mukherjee P,et al. Diffusion tensor imaging of normal and injured developing human brain. NMR Biomed, 2002, 15:543
  • 7Hunsche S, Moseley ME, Stoeter P,et al. Diffusion-tensor MR imaging at 1.5 and 3.0 T: initial observations. Radiology, 2001, 221:550
  • 8Neumann-Haefelin T, Moseley ME, Albers GW,et al. New magnetic resonance imaging methods for cerebrovascular disease: Emerging clinical applications. Ann Neurol, 2000, 47:559
  • 9Melhem ER, Mori S, Mukundan G,et al. Diffusion tensor MR imaging of the brain and white matter tractography. AJR, 2002, 178:3
  • 10Wiegell MR, Larsson HBW, Wedeen VJ,et al. Fiber crossing in human brain depicted with diffusion tensor MR imaging. Radiology, 2000, 217:897

二级参考文献29

  • 1[1]Moseley ME, Cohen Y, Kucharczyk J, et al. Diffusion-weighted MR imaging of anisotropic water incenteral nervous system. Radiology, 1990, 176:439
  • 2[2]Le Bihan D, Turoer R, Inugami A,et al. Diffusion MR imaging: clinical application. AJR, 1992, 159:591
  • 3[3]Higano S, Zhong J, Shrier DA,et al. Diffusion anisotropy of the inter nal and the coron radiata in association with stroke and tumors as measured by diffusion-weighted MR imaging. AJNR, 2001, 22:456
  • 4[4]Le Bihan D, Mangin JF, Poupon C, et al. Diffusion tensor imaging: Concepts and applications. J Magn Reson Imaging, 2001, 13:534
  • 5[5]Pierpaoli C, Jezzard P, Basser PJ,et al. Diffusion tensor MR imaging of the human brain. Radiology, 1996, 201:637
  • 6[6]Shimony JS, Mckinstry RC, Akubudak E,et al. Quantitative diffusion tensor anisotropy brain MR imaging: a normative human data and anatomic analysis. Radiology, 1999, 212:770
  • 7[7]Hajnal JV, Doran M, Hall AS. MR imaging of anisotropically restricted diffusion of water in the nervous system: technical, anatomic, and pathologic consideration. JCAT, 1991, 15:1
  • 8[8]Basser PJ, Mattiello J, Le Bihan D. MR diffusion tensor spectroscopy and imaging. Biophys J, 1994, 66:259
  • 9[9]Basser PJ, Pierpaoli C. Microstructural and physiological features of tis sues elucidated by quantitative-diffusion-tensor MRI. J Magn Reson, 1996, 111:209
  • 10[10]Neil JJ, Shiran SI, Mckinstry RC,et al. Normal brain in human newborns: apparent diffusion coefficient and diffusion anisotropy measured by using diffusion tensor MR imaging. Radiology, 1998, 209:54

共引文献44

同被引文献31

  • 1钟镜联,谭湘萍,梁碧玲,云文娟,黄穗齐,叶瑞心.不同b值在正常人脑组织磁共振扩散张量成像中的应用探讨[J].影像诊断与介入放射学,2004,13(3):148-152. 被引量：8
  • 2肖江喜,郭雪梅,王霄英,蒋学祥.头部扩散张量磁共振成像扫描方案的优选[J].中国医学影像技术,2003,19(11):1433-1435. 被引量：9
  • 3钟维佳,赵建农,谢微波,邢海芳,陈维娟.磁共振扩散张量成像对正常人脑结构的显示及各向异性研究[J].临床放射学杂志,2006,25(9):807-810. 被引量：3
  • 4Chabert S, Molko N, Cointepas Y, et al. Diffusion tensor imaging of the human optic nerve using a non-CPMG fast spin echo sequence[J]. J Magn Reson Imaging, 2005,22:307 - 310.
  • 5Wheeler-Kingshott CA, Trip SA, Symms MR, et al. In vivo diffusion tensor imaging of the human optic nerve: Pilot study in normal controls [J]. Magn Reson Med,2006, 56:446-451.
  • 6Miller NR. Diffusion tensor imaging of the visual sensory pathway: are we there yet? [ J ]. Am J Ophthalmol, 2005,140 : 896 - 897.
  • 7倪建明,沈天真,陈星荣.3.0TMR弥散梯度编码方向对脑组织FA值测量的影响[J].医学影像学杂志,2007,17(7):660-663. 被引量：5
  • 8Mamata H,Mamata Y,Westin C F,et al.High resolution line scan diffusion tensor MR imaging white matter fiber tract anatomy[J].AJNR,2002,23(1):67-75.
  • 9Huisman T A,Schwamm L H,Schaefer P W,et al.Diffusion tensor imaging as potential biomarker of white matter injury in diffusion axonal injury[J].AJNR,2004,25(3):370-376.
  • 10Laundre B J,Jellison B J,Badie B,et al.Diffusion tensor imaging of the corticospinal tract before and after mass resection as correlated with clinical motor findings:preliminary data[J].AJNR,2005,26(7):791-796.

引证文献4

二级引证文献11

临床放射学杂志
2005年 第10期

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