[Value of MRI in the etiologic diagnosis of cerebral infarction]

Area of Science:

• Neurology
• Vascular Medicine
• Radiology

Context:

• Ischaemic brain damage, commonly known as stroke, results from a complex array of etiological factors.
• Understanding the diverse causes of stroke is critical for effective patient management and preventative strategies.
• Cerebrovascular diseases represent a significant global health burden, necessitating accurate diagnostic approaches.

Purpose:

• To categorize the primary causes of ischaemic brain damage.
• To highlight the significant role of Magnetic Resonance Imaging (MRI) in the etiological assessment of cerebral infarction.
• To detail the diagnostic capabilities of MRI in differentiating infarction types and identifying associated pathologies.

Summary:

• Ischaemic brain damage arises from several key factors: atherosclerotic disease (50%), small vessel disease (25%), cardio-embolic disease (20%), and non-atheromatous arterial disease/blood dyscrasias (10%).
• A significant proportion of cases (10%) remain without a clear identified etiology.
• Magnetic Resonance Imaging (MRI) plays a pivotal role in evaluating cerebral infarction, enabling differentiation of infarct types, detection of leukoencephalopathy and hemorrhage, and vessel wall/lumen analysis.

Impact:

• Accurate etiological diagnosis through advanced imaging like MRI can lead to more targeted and effective stroke prevention and treatment strategies.
• Improved understanding of stroke causes can inform public health initiatives and research priorities in cerebrovascular disease.
• The findings underscore the importance of comprehensive diagnostic workups, including advanced neuroimaging, for patients presenting with ischaemic stroke.