We performed contrast-enhanced T2 fluid-attenuated inversion recovery(T2-FLAIR)and dynamic contrast enhanced MRI to illustrate the imaging characteristics of one case of hemangioblastoma.T2-FLAIR showed a large cyst l...We performed contrast-enhanced T2 fluid-attenuated inversion recovery(T2-FLAIR)and dynamic contrast enhanced MRI to illustrate the imaging characteristics of one case of hemangioblastoma.T2-FLAIR showed a large cyst located in the right cerebellum with mural nodule.The intensely enhancing cyst wall was observed on enhanced T2-FLAIR images acquired from 5.6 to 23 minutes after contrast administration,and quantitative dynamic contrast enhanced-MRI demonstrated that both the cyst wall and mural nodule presented high Ktrans,Kep and Ve values compared with the contralateral normal cerebellar tissues.The cyst showed gradual enhancement and reached the highest signal intensity at 67 minutes after contrast administration on enhanced T2-FLAIR images.In conclusion,early enhancement of cyst wall on T2-FLAIR might be the characteristic imaging findings for cystic hemangioblastoma,which may assist in the diagnosis of hemangioblastoma preoperatively.展开更多
目的分析小儿神经性厌食症患儿的MRI体素形态学特征。方法选取2021年2月至2023年1月于九江市妇幼保健院接受治疗的30例小儿神经性厌食症患儿作为研究组,另选择同期于本院体检的30名健康儿童作为对照组。两组均接受头部MRI检查,比较两组...目的分析小儿神经性厌食症患儿的MRI体素形态学特征。方法选取2021年2月至2023年1月于九江市妇幼保健院接受治疗的30例小儿神经性厌食症患儿作为研究组,另选择同期于本院体检的30名健康儿童作为对照组。两组均接受头部MRI检查,比较两组基于体素形态学测量的分数各向异性(fractional anisotropy,FA)值,分析研究组患儿脑组织结构改变与体重指数(body mass index,BMI)的相关性。结果研究组两侧岛叶、左侧丘脑、左侧额下回后部、左侧额叶中回、左侧前扣带回、左内侧额叶回、左侧额上回的FA值均低于对照组,差异有统计学意义(P<0.05)。研究组左侧额上回、丘脑、脑岛的FA值与BMI均呈正相关(r>0,P<0.05)。结论基于体素形态学分析的MRI检查,可较好地反映神经性厌食症患儿的大脑白质结构损伤,借助脑组织结构改变能反映厌食症的病情严重程度,对于揭示神经性厌食症的发病机制具有重要价值。展开更多
文摘We performed contrast-enhanced T2 fluid-attenuated inversion recovery(T2-FLAIR)and dynamic contrast enhanced MRI to illustrate the imaging characteristics of one case of hemangioblastoma.T2-FLAIR showed a large cyst located in the right cerebellum with mural nodule.The intensely enhancing cyst wall was observed on enhanced T2-FLAIR images acquired from 5.6 to 23 minutes after contrast administration,and quantitative dynamic contrast enhanced-MRI demonstrated that both the cyst wall and mural nodule presented high Ktrans,Kep and Ve values compared with the contralateral normal cerebellar tissues.The cyst showed gradual enhancement and reached the highest signal intensity at 67 minutes after contrast administration on enhanced T2-FLAIR images.In conclusion,early enhancement of cyst wall on T2-FLAIR might be the characteristic imaging findings for cystic hemangioblastoma,which may assist in the diagnosis of hemangioblastoma preoperatively.
文摘目的分析小儿神经性厌食症患儿的MRI体素形态学特征。方法选取2021年2月至2023年1月于九江市妇幼保健院接受治疗的30例小儿神经性厌食症患儿作为研究组,另选择同期于本院体检的30名健康儿童作为对照组。两组均接受头部MRI检查,比较两组基于体素形态学测量的分数各向异性(fractional anisotropy,FA)值,分析研究组患儿脑组织结构改变与体重指数(body mass index,BMI)的相关性。结果研究组两侧岛叶、左侧丘脑、左侧额下回后部、左侧额叶中回、左侧前扣带回、左内侧额叶回、左侧额上回的FA值均低于对照组,差异有统计学意义(P<0.05)。研究组左侧额上回、丘脑、脑岛的FA值与BMI均呈正相关(r>0,P<0.05)。结论基于体素形态学分析的MRI检查,可较好地反映神经性厌食症患儿的大脑白质结构损伤,借助脑组织结构改变能反映厌食症的病情严重程度,对于揭示神经性厌食症的发病机制具有重要价值。
