Abstract
SUMMARY: Novel 320-section CT scanning equipment enables dynamic noninvasive angiographic imaging of the entire cranial vasculature (4D-CTA). We describe this technique and demonstrate its potential in arteriovenous shunting lesions. 4D-CTA imaging resulted in a correct diagnosis, lesion classification, and treatment-strategy selection in 3 patients, compared with CA. We think that 4D-CTA can further reduce the need for CA, sparing the patient the discomfort and risk associated with an invasive procedure.
Abbreviations
- AVM
- arteriovenous malformation
- CTA
- CT angiography
- CA
- conventional angiography
- DAVF
- dural arteriovenous fistula
- MIP
- maximum intensity projection
- MRA
- MR angiography
- VR
- volume-rendering
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