Magnetic resonance angiography in patients with acute stroke treated by local thrombolysis.
Although magnetic resonance angiography (MRA) is accepted for showing chronic intracranial stenotic or occlusive lesions, the method has not been practically examined in patients with acute cerebral ischaemia. We carried out three-dimensional time-of-flight MRA in six patients with acute ischaemia treated by local thrombolysis, and compared the findings with those of digital subtraction angiography (DSA). In all patients, MRA before thrombolysis clearly demonstrated the occluded arteries, which corresponded precisely to those shown by DSA. In four patients with complete recanalisation of the occluded vessels after thrombolysis, the recanalisation could be demonstrated by postoperative MRA. In one patient with reocclusion of the recanalised artery, repeat MRA also demonstrated the reocclusion, confirmed by DSA. These results suggest that MRA may be helpful for noninvasive investigation before and after thrombolysis.
Department of Neurological Surgery, Washokai Sadamoto Hospital, Ehime, Japan. sohue@m.ehime-u.ac.jp
S
S
Ohue
K
K
Kohno
K
K
Kusunoki
K
K
Sadamoto
S
S
Ohta
T
T
Ueda
S
S
Sakaki
D000328:Adult; D000368:Aged; D002545:Brain Ischemia / Q000175:diagnosis / Q000188:drug therapy*; D002343:Carotid Artery, Internal / Q000473:pathology; D002536:Cerebral Arteries / Q000473:pathology; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D002542:Intracranial Embolism and Thrombosis / Q000175:diagnosis / Q000188:drug therapy*; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D015912:Thrombolytic Therapy; D016896:Treatment Outcome; D014568:Urokinase-Type Plasminogen Activator / Q000008:administration & dosage*
D014568:Urokinase-Type Plasminogen Activator