Uchino A, Hasuo K, Matsumoto S, Mizushima A, Masuda K
Department of Radiology, Faculty of Medicine, Kyushu University, Japan.
Radiat Med. 1995 Jul-Aug;13(4):157-61.
The clinical value of three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) was assessed in 15 patients with intracranial venous angiomas (VAs), by comparing results thereof with those of postcontrast T1-weighted MR images (MRIs). All 15 VAs were identified both on the postcontrast MRIs and MRAs. The MRAs surpassed the MRIs in imaging entire structures, including the draining veins of the supratentorial VAs. For the infratentorial VAs, the MRAs and the MRIs were of equal value. Although the addition of MRA to the MRI procedure incurs more time and expense, the complete structure of the VA can thereby be identified three-dimensionally on MRA. Conventional angiography is apparently not required for the confirmation of a VA. Thus, it is concluded that MRA is very useful for diagnosing VAs.
通过将15例颅内静脉瘤（VA）患者的三维时间飞跃磁共振血管造影（3D - TOF - MRA）结果与对比剂增强T1加权磁共振成像（MRI）结果进行比较，评估了3D - TOF - MRA的临床价值。在对比剂增强MRI和MRA上均识别出了所有15个VA。MRA在显示包括幕上VA引流静脉在内的整个结构方面优于MRI。对于幕下VA，MRA和MRI价值相当。虽然在MRI检查中增加MRA会花费更多时间和费用，但由此可以在MRA上三维识别VA的完整结构。确认VA显然不需要传统血管造影。因此，得出结论：MRA对VA的诊断非常有用。
