磁敏感加权成像相位值变化在脑型肝豆状核变性中的应用价值

Diagnostic Imaging & Interventional Radiology(2016)

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Abstract
目的 分析脑型肝豆状核变性(HLD)患者脑深部灰质核团的磁敏感加权成像(SWI)相位值的改变,探讨SWI相位值在脑型肝豆状核变性中的应用价值.方法 采用1.5 T MR系统对30例脑型HLD患者及30例健康志愿者进行SWI序列扫描.使用SPIN软件测量脑深部灰质核团红核、黑质、丘脑、尾状核头、苍白球、壳核的相位值,分析脑型HLD患者脑灰质核团相位值变化特点.结果 与正常对照组比较,脑型HLD组患者红核相位值降低(HLD组:相位值为2044.12±26.96,正常组:2 075.18±31.53,t=3.291,P=0.005),黑质相位值降低(HLD组:相位值为1 826.79±83.21,正常组:1913.22±30.76,t=4.509,P=0.004),丘脑相位值降低(HLD组:相位值为2 047.13±9.32,正常组:2 082.32±21.82,t=1.132,P=0.287),苍白球相位值降低(HLD组:相位值为2 054.30±74.68,正常组:2 105.42±15.81,t=1.139,P=0.263),壳核相位值降低(HLD组:相位值为2 023.70±24.16,正常组:2 072.42±5.35,t=2.981,P=0.009),尾状核头相位值升高(HLD组:相位值为2 175.50±86.47,正常组:2 119.8±10.15,t=-1.943,P=0.069).结论 脑型肝豆状核变性患者红核、黑质、壳核相位值降低.SWI相位值有助于评价肝豆状核变性患者脑内铜的异常沉积.
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Key words
Hepatolenticular degeneration,Phase,Susceptibility-weighted imaging
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