放射学实践
放射學實踐
방사학실천
RADIOLOGIC PRACTICE
2014年
5期
517-520
,共4页
何冠勇%刘远健%冯飞%刘汉桥%刘阳%刘鹏程
何冠勇%劉遠健%馮飛%劉漢橋%劉暘%劉鵬程
하관용%류원건%풍비%류한교%류양%류붕정
多系统萎缩%小脑脚%锥体束%扩散张量成像%磁共振成像
多繫統萎縮%小腦腳%錐體束%擴散張量成像%磁共振成像
다계통위축%소뇌각%추체속%확산장량성상%자공진성상
Multiple system atrophy%Cerebellar peduncle%Corticospinal tract%Diffusion tensor imaging%Magnetic resonance imaging
目的:探讨小脑共济失调型多系统萎缩(MSA-C)患者脑干相关白质纤维的定量扩散张量纤维束成像特征。方法:搜集 MSA-C型患者11例(MSA-C组)及健康志愿者11例(对照组),行常规 MRI及扩散张量成像(DTI)检查,利用纤维束追踪成像法重建小脑上、中、下脚及锥体束,并测量其FA值和纤维条数。结果:MSA-C组小脑中脚、下脚及锥体束的FA值(0.458±0.019,0.372±0.010,0.494±0.016)较对照组(0.476±0.016、0.405±0.023、0.524±0.012)降低(P<0.05);小脑中脚、下脚及锥体束的纤维条数(373±76、72±23、173±35)较对照组(1544±156、116±37、311±94)降低(P<0.05)。MSA-C组小脑上脚的FA值(0.481±0.010)与对照组(0.474±0.012)比较差异无统计学意义(P>0.05);MSA-C组小脑上脚纤维条数(634±50)与对照组(686±117)比较差异无统计学意义(P>0.05)。结论:小脑中、下脚及锥体束的FA值和纤维条数的测量能从一个侧面反映 MSA的病变特征。
目的:探討小腦共濟失調型多繫統萎縮(MSA-C)患者腦榦相關白質纖維的定量擴散張量纖維束成像特徵。方法:搜集 MSA-C型患者11例(MSA-C組)及健康誌願者11例(對照組),行常規 MRI及擴散張量成像(DTI)檢查,利用纖維束追蹤成像法重建小腦上、中、下腳及錐體束,併測量其FA值和纖維條數。結果:MSA-C組小腦中腳、下腳及錐體束的FA值(0.458±0.019,0.372±0.010,0.494±0.016)較對照組(0.476±0.016、0.405±0.023、0.524±0.012)降低(P<0.05);小腦中腳、下腳及錐體束的纖維條數(373±76、72±23、173±35)較對照組(1544±156、116±37、311±94)降低(P<0.05)。MSA-C組小腦上腳的FA值(0.481±0.010)與對照組(0.474±0.012)比較差異無統計學意義(P>0.05);MSA-C組小腦上腳纖維條數(634±50)與對照組(686±117)比較差異無統計學意義(P>0.05)。結論:小腦中、下腳及錐體束的FA值和纖維條數的測量能從一箇側麵反映 MSA的病變特徵。
목적:탐토소뇌공제실조형다계통위축(MSA-C)환자뇌간상관백질섬유적정량확산장량섬유속성상특정。방법:수집 MSA-C형환자11례(MSA-C조)급건강지원자11례(대조조),행상규 MRI급확산장량성상(DTI)검사,이용섬유속추종성상법중건소뇌상、중、하각급추체속,병측량기FA치화섬유조수。결과:MSA-C조소뇌중각、하각급추체속적FA치(0.458±0.019,0.372±0.010,0.494±0.016)교대조조(0.476±0.016、0.405±0.023、0.524±0.012)강저(P<0.05);소뇌중각、하각급추체속적섬유조수(373±76、72±23、173±35)교대조조(1544±156、116±37、311±94)강저(P<0.05)。MSA-C조소뇌상각적FA치(0.481±0.010)여대조조(0.474±0.012)비교차이무통계학의의(P>0.05);MSA-C조소뇌상각섬유조수(634±50)여대조조(686±117)비교차이무통계학의의(P>0.05)。결론:소뇌중、하각급추체속적FA치화섬유조수적측량능종일개측면반영 MSA적병변특정。
Objective:To study the changes of quantitative diffusion tensor tractography (DTT)values of brainstem white matter in patients with multiple system atrophy-cerebellar ataxia (MSA-C).Methods:Conventional T2 WI MRI and DTI were performed in 11 clinically proved MSA patients and 11 healthy volunteers.The superior cerebellar peduncle (SCP),the middle cerebellar peduncle (MCP),the inferior cerebellar peduncle (ICP)and pyramidal tracts (PT)were re-constructed.The fractional anisotropy (FA),number of streamlines of SCP/MCP/ICP and PT were compared between groups.Results:In comparison with the control group,MSA-C decreased significantly in FA value of MCP (0.458±0.019 and 0.476±0.016 respectively),ICP(0.372±0.010 and 0.405±0.023 respectively),PT (0.494±0.016 and 0.524± 0.012 respectively)and also decreased in the number of streamlines of MCP(373±76 and 1544±156 respectively),ICP (72±23 and 116±37 respectively)and PT (173±35 and 311±94 respectively,P<0.05).There were no significant differ-ences in FA value of SCP (0.481±0.010 and 0.474±0.012 respectively)and in the number of streamlines of SCP (634± 50 and 686 ±117 respectively)between MSA-C group and the control group (P>0.05).Conclusion:The FA value and number of streamlines can sensitively reflect MCP、ICP and PT neural fiber pathological changes in MSA-C patients.