NGHIÊN CỨU ĐẶC ĐIỂM HÌNH ẢNH VÀ GIÁ TRỊ CỦA CỘNG HƯỞNG TỪ MẠCH MÁU TOF 3D 3.0TESLA TRONG CHẨN ĐOÁN HẸP TẮC ĐỘNG MẠCH LỚN TRONG SỌ Ở BỆNH NHÂN NHỒI MÁU NÃO CẤP TẠI BỆNH VIỆN ĐA KHOA QUỐC TẾ S.I.S CẦN THƠ NĂM 2022 – 2024

Abstract

Background: Acute ischemic stroke or acute cerebral infarction, is an episode of neurological dysfunction due to focal infarction in the central nervous system attributed to a sudden cessation of adequate amounts of blood reaching parts of the brain, have a high risk of death. Therefore, thanks to the advancement of imaging diagnostic techniques, especially magnetic resonance imaging (MRI), it has helped quickly diagnose cerebral infarction, determine the cause and guide treatment for patients. Objectives: Characterizing the imaging features on 3Tesla MRI of acute ischemic stroke patients with intracranial arterial stenosis and evaluating the diagnostic accuracy of MRA TOF 3D 3Tesla in diagnosing intracranial arterial stenosis. Materials and methods: A prospective, cross-sectional descriptive study performed in 62 acute ischemic stroke patients with intracranial arterial stenosis undergoing 3Tesla MRI and digital subtraction angiography (DSA) at Can Tho Stroke International Services General Hospital from July 2022 to April 2024. Results: The study recorded 62 suitable cases as research subjects (37 men and 25 women), the average age for both sexes was 61.26 ± 15.46. The proportion of major artery stenosis levels in 6.9% mild stenosis, 15.2% moderate stenosis, 27.5% severe stenosis and 50.4% complete occlusion. The value of 3D 3T MRA TOF in assessing the degree of intracranial large arterial stenosis had high sensitivity, specificity and accuracy with stenosis levels of 50-99% being 94.0%, 99.1% and 98.9% respectively. With the level of complete arterial occlusion, the sensitivity, specificity and accuracy being 94.0%, 99.7% and 99.3% respectively. Conclusions: 3Tesla magnetic resonance is a fast, convenient and accurate imaging technique in the early diagnosis of cerebral infarction, as well as detecting stenosis and occlusion of large intracranial arteries, which are common causes of cerebral infarction. It also helps guide further treatment, helping to reduce the risk of disability and death for the patient.