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Brain Vascular Territories

Interactive Map of Cerebral Infarct Territories

Vascular Territories

Anterior Circulation

Posterior Circulation

Deep Territories

Clinical Information

Select a vascular territory to view clinical details and common presentation patterns.

Stroke Statistics

MCA Territory: ~80% of strokes
Lacunar Strokes: ~25% of strokes
Posterior Circulation: ~20% of strokes

Brain Sections

High Convexity (Vertex Level)

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Axial CT - High Convexity
Axial CT - Basal Ganglia Level
Axial CT - Mid-Lower Level
Axial CT - Lower Level

Coronal Section - Mid Coronal

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Coronal CT - Mid Section
Coronal CT - Anterior Section

Sagittal Section - Midline View

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Sagittal CT - Midline

Legend & Key Information

ACA - Anterior Cerebral Artery
MCA - Middle Cerebral Artery
PCA - Posterior Cerebral Artery
LSA - Lenticulostriate Arteries
BA - Basilar Artery
VA - Vertebral Artery

Clinical Notes:

  • MCA territory strokes are the most common, representing ~80% of cerebral infarcts
  • Lacunar strokes (small vessel disease) commonly affect lenticulostriate territories
  • Posterior circulation strokes account for ~20% of cerebral infarcts
  • Watershed infarcts occur at territorial boundaries during hypoperfusion
  • Time-sensitive treatment windows: IV tPA ≤4.5 hours, mechanical thrombectomy ≤24 hours

Reference: Based on standard neuroanatomical atlases and stroke epidemiology data