扩散张量成像技术对急性脑梗死的诊断价值  

The diagnosis valuation of diffusion tensor imaging in acute stroke

作　　者：赵国库[1] 赵绘萍[2] 周宏伟[1] 孟红梅[3] 

机构地区：[1]吉林大学第一医院放射线科,吉林长春130021 [2]吉林医药学院附属医院CT科,吉林吉林132013 [3]吉林大学第一医院神经内科,吉林长春130021

出　　处：《中风与神经疾病杂志》2006年第6期731-732,共2页Journal of Apoplexy and Nervous Diseases

摘　　要：目的应用MR扩散张量成像(DTI)及扩散张量纤维束成像(DTT)技术对急性脑梗死患者进行检查,研究患者肢体活动障碍的表现及预后与皮质脊髓束的关系及ADC图对急性脑梗死的诊断价值。方法对33例急性脑梗死患者(发病时间<72h)行常规MRI检查及DTI检查,并进行皮质脊髓束三维DTT成像及b=1000的ADC成像,将患者运动障碍的程度分为无瘫痪,治疗后瘫痪恢复,治疗后瘫痪不恢复3种情况,将常规MRI图、DTI中的ADC图影像表现及DTT图皮质脊髓束形态表现与患者临床肌力表现及治疗结果相比较。结果无瘫痪13例,治疗后瘫痪恢复者9例,治疗后瘫痪不恢复者11例,DTT图显示皮质脊髓束分别为无受压,受压无中断及中断破坏。所有病例ADC图均表现为低或稍低信号。结论DTI及DTT技术,对判断脑梗死患者运动障碍的程度及预后有重要价值。Objective To evaluate the relationship between cortical spinal tracts and myodynamia by diffu sion tensor imaging（DTI） and diffusion tensor tract （DTT）;to research the diagnosis value of ADC in acute stroke. Methods 33 patients of acute cerebral infarction（onset time〈72h） were imaged with conventional imaging and DTI, performing DTT of the cortical spinal tract （CST） and ADC imaging（b= 1000）,The imaging of DTT, routine MR and ADC were compared with the clinical appearance and the therapeutic result. Results The 13 patients＇myodynamia were normal, 9 patients＇myodynamia were recover after therapy and 11 patients＇myodynamia were not recovered,CST showed not compressed,compressed but not disrupted and disrupted respectively,intension of signal of ADC imaging was low. Conclusion DTI and DTT were important to diagnose the acute cerebral infarction and to evaluate the prognosis of myodynamla recovery in patients of actue cerebral infarction.

关 键 词：急性脑梗死 弥散张量成像 皮质脊髓束 

分 类 号：R743.3[医药卫生—神经病学与精神病学]