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MR angiography and arterial spin labeling proton in assessing correlation between transient ischemic attack and intracranial artery perfusion abnormalities / 中国医学影像技术
Article in Zh | WPRIM | ID: wpr-472266
Responsible library: WPRO
ABSTRACT
Objective To assess the value of magnetic resonance angiography (MRA) and arterial proton spin labeling (ASL) in the internal carotid artery transient ischemic attack. Methods According to TIA seizure frequency, 58 patients clinical diagnosed as TIA were divided into single group (n=12) and the frequent group (n=46). All patients underwent MRA and ASL, then intracranial arterial stenosis and cerebral perfusion were evaluated. Results Vascular stenosis with abnormal ASL were detected in 33 (71.74%) of 46 frequent TIA patients and 1 (8.33%) single TIA patient. The incidence of vascular stenosis with abnormal ASL was higher in frequent TIA than that in single TIA (P<0.05). Conclusion Vascular stenosis with perfusion abnormality is one of the most risk factors of TIA frequent seizures. Combination of MRA and ASL can make judgment for stenosis and abnormality of cerebral blood flow, being helpful to understand the onset causes and prognosis of TIA.
Key words
Full text: 1 Index: WPRIM Type of study: Prognostic_studies / Risk_factors_studies Language: Zh Journal: Chinese Journal of Medical Imaging Technology Year: 2009 Type: Article
Full text: 1 Index: WPRIM Type of study: Prognostic_studies / Risk_factors_studies Language: Zh Journal: Chinese Journal of Medical Imaging Technology Year: 2009 Type: Article