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Intracranial arterial dissection

O Pelkonen1, T Tikkakoski, S Leinonen

  • 1Department of Diagnostic Radiology, Oulu University Hospital, Finland.

Neuroradiology
|September 8, 1998
PubMed
Summary
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This review details intracranial arterial dissections, focusing on imaging findings and clinical outcomes. Early identification and management are crucial for improving patient recovery from these serious vascular events.

Area of Science:

  • Neurology
  • Radiology
  • Vascular Medicine

Background:

  • Intracranial arterial dissection is a significant cause of stroke, particularly in younger individuals.
  • Understanding the diverse imaging manifestations and clinical presentations is key for diagnosis.

Purpose of the Study:

  • To review the angiographic and CT findings associated with intracranial arterial dissections.
  • To analyze precipitating factors and clinical features in a cohort of patients.
  • To correlate imaging findings with clinical outcomes.

Main Methods:

  • Retrospective review of nine patients diagnosed with ten intracranial arterial dissections.
  • Analysis of angiographic and computed tomography (CT) imaging.
  • Correlation of imaging findings with clinical presentation and patient outcomes.

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Main Results:

  • Internal carotid artery (ICA) was most frequently involved (5 cases), followed by vertebral artery (4 cases).
  • Angiographic findings included stenosis, pseudoaneurysm, dilatation, and occlusion.
  • CT revealed infarcts, dense middle cerebral artery sign, and subarachnoid hemorrhage.
  • A precipitating factor was identified in five patients.
  • Six patients had good recovery, while three experienced persistent neurological deficits.

Conclusions:

  • Intracranial arterial dissections present with varied angiographic and CT findings.
  • Clinical outcomes range from full recovery to significant neurological deficits.
  • Further research into precipitating factors may aid in prevention and treatment strategies.