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The normal contrast-enhanced computed axial tomogram of the brain
Journal of Computer Assisted Tomography
|January 1, 1977
Summary
Contrast-enhanced computed axial tomography (CECT) aids in visualizing brain structures like arteries, veins, and choroid plexuses. However, normal vascular structures can sometimes mimic tumors on CECT scans.
Area of Science:
- Neuroradiology
- Medical Imaging
Background:
- Contrast-enhanced computed axial tomography (CECT) is a key imaging modality in neurodiagnosis.
- Accurate interpretation of CECT requires understanding the appearance of normal intracranial structures.
Purpose of the Study:
- To describe the appearance of normal vascular structures on CECT.
- To highlight potential pitfalls in interpreting CECT, specifically contrast pseudotumors.
Main Methods:
- Intravenous administration of iodinated contrast agents.
- Analysis of contrast-enhanced computed axial tomographic (CECT) images.
Main Results:
- Iodinated contrast agents clearly delineate major cerebral arteries and veins.
- Normal structures like choroid plexuses, falx, and tentorium are identifiable on CECT.
- Conglomerate densities formed by normal vascular structures can be mistaken for pseudotumors.
Conclusions:
- CECT effectively visualizes key intracranial vascular and dural structures.
- Radiologists must be aware that normal anatomy can form pseudotumors on CECT, requiring careful differentiation.