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IMAGING CHARACTERISTICS OF ARTERIAL SPIN LABEL SEQUENCES IN THE DIAGNOSIS OF ACUTE CEREBRAL INFARCTION WITH GREAT ARTERY OCCLUSION AT HANOI MEDICAL UNIVERSITY HOSPITAL
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Abstract
Objective: To describe the characteristics of ASL MRI perfusion imaging in the diagnosis of acute cerebral infarction with large artery occlusion. Subject and method: A cross-sectional descriptive study on 40 patients with acute with cerebral infarction and large artery occlusion at Hanoi Medical University Hospital. Patients underwent MRI with conventional pulse sequences, DWI/ADC pulse sequences and ASL to assess the lesion area. Result: Mean age was 68,23 ± 13.33, the lowest was 30, the highest was 92 with 55% being male. MRI scan between 6-24 hours accounted for 43.59%. There was a significant difference between the mean CBF of the infarct core (10.05 ± 2.87 ml/100g/min), ischemic penumbra (15.59 ± 4.11 ml/100g/min) and the contralateral healthy region (35.47 ± 13.67 ml/100g/min). Conclusion: ASL pulse sequence does not require contrast injection but still helps to identify the ischemic penumbra, complements the DWI pulse sequence to diagnose early infarction, and supports the clinical decision-making process.
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Keywords
cerebral perfusion pulse sequence, magnetic resonance, acute cerebral infarction
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