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MR扩散张量成像评价脑室旁白质软化症脑性瘫痪患儿认知功能的研究 被引量:16

Diffusion tensor MR imaging in the assessment of cognitive functions in children with periventricular leukomalacia
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摘要 目的探讨MRDTI及白质纤维束成像(Fr)在评价脑室旁白质软化症(PVL)脑性瘫痪患儿认知功能中的应用价值,为揭示PVL患儿认知功能障碍的可能神经基础提供帮助。方法选取46例临床确诊为脑性瘫痪的PVL患儿,同时选择足月无窒息史的健康儿童16名进行对照研究。应用发育商(DQ)评价患儿认知功能,根据DQ值将患儿分为轻(11例)、中(19例)、重度(16例)认知障碍组。对受试儿童进行常规MRI及DTI检查,计算各组患儿主要白质纤维束各向异性分数(FA)值,患儿组与对照组间进行非配对t检验,各认知障碍组及对照组组间比较采用单因素方差分析。结果与对照组相比,患儿组左侧皮质脊髓束(患儿组:0.476±0.064;对照组:0.531±0.064),双侧内囊前肢(患儿组:左侧0.357±0.050,右侧0.370±0.040;对照组:左侧0.405±0.081,右侧0.405±0.036),双侧内囊后肢(患儿组:左侧0.483±0.044,右侧0.485±0.046;对照组:左侧0.546±0.091,右侧0.547±0.083),双侧弓状束(患儿组:左侧0.367±0.069,右侧0.363±0.064;对照组:左侧0.433±0.097,右侧0.421±0.091),双侧丘脑后辐射(患儿组:左侧0.390±0.059,右侧0.382±0.047;对照组:左侧0.459±0.067,右侧0.446±0.064),双侧前扣带束(患儿组:左侧0.362±0.056,右侧0.345±0.056;对照组:左侧0.423±0.057,右侧0.417±0.080),双侧上纵束(患儿组:左侧0.323±0.050,右侧0.341±0.056;对照组:左侧0.426±0.102,右侧0.416±0.092)及胼胝体压部(患儿组:0.535±0.090;对照组:0.606±0.060)的FA值显著减低,差异有统计学意义(t值为2.037—3.745,P值均〈0.05);随认知障碍程度的加重,所有纤维束的FA值逐渐下降,各认知障碍组及对照组进行组间比较发现双侧皮质脊髓束、内囊前肢、内囊后肢、左侧弓状束、双侧丘脑后辐射、前扣带束、上纵束及胼胝体压部的FA值差异有统计学意义(F值为3.021~7.146,P值均〈0.05)。进一步两两比较显示,以上纤维束的FA值在对照组与重度认知障碍组问比较,差异均有统计学意义(P值均〈0.05)。结论PVL患儿认知功能障碍与脑内广泛白质纤维束损伤有关,DTI及FT在评价PVL患儿认知功能方面有较高的应用价值。 Objective To investigate the values of diffusion tensor MR imaging (DTI) and fiber tractography (FT) in the assessment of cognitive functions in children with periventricular leukomalacia ( PVL), to facilitate to understand the mechanism of PVL children's cognitive functions. Methods Forty six children with PVL and 16 age-matched volunters were recruited. Developmental quotient (DQ) of all cases was recorded. According to the DQ scores, patients were divided into 3 groups: mild in 11 patients, moderate in 19, and severe in 16. DTI was performed in all cases and fractional anisotropy (FA) values were be calculated. Non-paired t test was used to compare the FA values of major white matter fibers between patients group and controls group. One-way ANOVA was used to compare the FA values among 4 groups. Results Compared with controls, all 46 patients with PVL showed a significant mean FA reduction in left
出处 《中华放射学杂志》 CAS CSCD 北大核心 2012年第3期203-208,共6页 Chinese Journal of Radiology
基金 教育部博士点基金资助项目(200801590012)
关键词 脑性瘫痪 磁共振成像 弥散 认知障碍 Cerebral palsy Diffusion magnetic resonance imaging Cognition disorders
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  • 1任永平,魏玲,蔡方成.婴幼儿脑性瘫痪运动功能量表及其评价[J].中华理疗杂志,1995,18(4):216-218. 被引量:39
  • 2黄东锋,彭倚云,陈少贞,刘鹏.脑瘫儿童功能独立与适应行为的相关性研究[J].中国康复理论与实践,1996,2(2):56-60. 被引量:6
  • 3胡莹媛.小儿脑性瘫痪智能评定探讨[J].中国康复,1996,11(2):71-72. 被引量:10
  • 4陈少贞,彭倚云.适应行为量表在脑瘫评估中的应用[J].中国康复医学杂志,1996,11(6):243-243. 被引量:3
  • 5Hajnal JV, Doran M, Hall AS, et al. MR imaging of anisotropically restricted diffusion of water in the nervous system: technical, anatomic, and pathologic considerations (Review). J Comput Assist Tomogr, 1991, 15: 1-18.
  • 6Guo AC, MacFall JR, Provenzale JM. Multiple sclerosis: diffusion tensor MR imaging for evaluation of normal-appearing white matter. Radiology, 2002, 222: 729-736.
  • 7Mukherjee P, Miller JH, Shimony JS, et al. Normal brain maturation during childhood: developmental trends characterized with diffusion-tensor MR imaging. Radiology, 2001, 221: 349-358.
  • 8Volpe JJ.Neuhauser lecture.Current concepts of brain injury in the premature infant[J].AJR,1989,153(2):243-251.
  • 9Rezaie P,Dean A.Periventricular leukomalacia,inflammation and white matter lesions within the developing nervous system[J].Neuropathology,2002,22(3):106-132.
  • 10Ito R,Mori S,Melhem ER.Diffusion tensor brain imaging and tractography[J].Neuroimaging Clin N Am,2002,12(1):1-19.

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