Objective To evaluate the clinical value of the Magneticresonanceangiography in the diagnosis of the portal venous hypertension.
目的探讨磁共振血管造影对门静脉高压症的临床应用价值。
2
Objective To investigate the value of MRI and magneticresonanceangiography(MRA) for moyamoya disease .
目的探讨磁共振成像（MRI）和磁共振动脉成像（MRA）对烟雾病的诊断价值。
3
Objective To explore the application value of three-dimensional dynamic contrast-enhanced magneticresonanceangiography (3d DCE-MRA) of the skull and neck vessel disease.