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Intracranial arteriovenous malformations. Observations after experience with computerised tomography.
Journal of Neurology, Neurosurgery, and Psychiatry
|October 1, 1976
Summary
Computerised tomographic (CT) scans reveal haematoma formation, calcification, and hydrocephalus causes in patients with intracranial arteriovenous malformations. This study utilized CT scans before and after contrast injection for detailed intracranial arteriovenous malformation investigation.
Area of Science:
- Neuroradiology
- Vascular Neurology
- Medical Imaging
Background:
- Intracranial arteriovenous malformations (AVMs) are complex vascular anomalies.
- Accurate diagnosis and characterization are crucial for patient management.
- Computerised tomographic (CT) scanning is a key diagnostic tool.
Purpose of the Study:
- To evaluate the utility of CT scans in assessing intracranial AVMs.
- To determine the incidence of complications such as hematoma formation and hydrocephalus.
- To identify calcifications not apparent on plain radiographs.
Main Methods:
- Thirty-six patients with angiographically confirmed intracranial AVMs underwent CT scans.
- Scans were performed before and after intravenous injection of sodium iothalamate (Conray 420).
- Analysis focused on identifying hematoma, calcification, and signs of hydrocephalus.
Main Results:
- CT demonstrated the incidence of post-hemorrhage hematoma formation.
- Calcifications, often missed on plain radiographs, were identified.
- Potential causes for complicating hydrocephalus were described.
Conclusions:
- CT scanning is valuable for characterizing intracranial AVMs and associated complications.
- Contrast-enhanced CT provides further diagnostic information.
- Understanding these features aids in clinical decision-making for AVM patients.