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
肺部疾病是全球重要的公共卫生问题,其高发病率与死亡率凸显了早期诊断和精准评估的重要性^([1])。然而,现有诊断方法在全面评估肺部病变方面仍存在局限。传统肺功能检查(pulmonary function tests,PFTs)虽然无创便捷,但仅能提供整体肺...肺部疾病是全球重要的公共卫生问题,其高发病率与死亡率凸显了早期诊断和精准评估的重要性^([1])。然而,现有诊断方法在全面评估肺部病变方面仍存在局限。传统肺功能检查(pulmonary function tests,PFTs)虽然无创便捷,但仅能提供整体肺功能参数,难以反映肺部病变的区域异质性,且依赖于患者的良好配合。对于早期局灶性病变,由于肺组织的代偿作用,PFTs结果可能仍处于正常范围,从而延误了疾病的早期诊断和干预^([2])。高分辨率CT(high-resolution computed tomography,HRCT)是评估肺部结构的“金标准”,但电离辐射风险限制了其在儿童、孕妇及需长期随访的慢性肺病患者中的应用^([3])。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.
文摘肺部疾病是全球重要的公共卫生问题,其高发病率与死亡率凸显了早期诊断和精准评估的重要性^([1])。然而,现有诊断方法在全面评估肺部病变方面仍存在局限。传统肺功能检查(pulmonary function tests,PFTs)虽然无创便捷,但仅能提供整体肺功能参数,难以反映肺部病变的区域异质性,且依赖于患者的良好配合。对于早期局灶性病变,由于肺组织的代偿作用,PFTs结果可能仍处于正常范围,从而延误了疾病的早期诊断和干预^([2])。高分辨率CT(high-resolution computed tomography,HRCT)是评估肺部结构的“金标准”,但电离辐射风险限制了其在儿童、孕妇及需长期随访的慢性肺病患者中的应用^([3])。
