GIÁ TRỊ CHẨN ĐOÁN PHÌNH ĐỘNG MẠCH NÃO TRÊN CỘNG HƯỞNG TỪ 3 TESLA

Abstract

Objective: Studying the value of 3 Tesla magnetic resonance in the diagnosis of intracranial aneurysms, evaluating correlation with digital subtraction angiography (DSA). Methods: A prospective study was performed on 38 patients with clinical manifestations of the neurovascular disease diagnosed with intracranial aneurysms on 3 Tesla magnetic resonance (MRI 3T) and then performed digital subtraction angiography at the Radiology Center, Bach Mai Hospital, Hanoi, Vietnam from 8/2021 to 5/2022. Results: Of the 38 patients, 42 aneurysms were detected on the DSA in 32 patients. Evaluation based on aneurysms, 3T MRI yielded 98% accuracy, 100% sensitivity, 85.7% specificity, 97.7% positive predictive value, 100% negative predictive value. The level of agreement between 3T MRI and DSA in the diagnosis of intracranial aneurysm was assessed as very good (Kappa, k = 0.911). Conclusion: Our study has shown that the ability of 3T MRI in detecting intracranial aneurysms is very high. It is a safe, non-invasive, and very effective first-line method for screening brain aneurysms. Information about aneurysms and related factors are provided to help select methods and improve treatment efficiency for patients.