PHYSICIAN'S CORNER
Cerebrovascular Abnormalities
Return to the Physician's Corner - Low cost and low risk favor MRA as initial test for intracranial aneurysms.
- Catheter angiography is indicated for evaluation of aneurysms in the setting of acute subarachnoid hemorrhage.
- Conventional MRI and MRA are useful to evaluate arteriovenous malformations; however, catheter angiography is necessary for complete evaluation.
- Venous angiomas, cavernous angiomas and capillary telangiectasias are well seen by conventional MRI (don’t need MRA or catheter angiography)
- MRA for Circle of Willis and MRI brain with and without contrast are indicated to screen for intracranial aneurysm