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AJNR - American Journal of Neuroradiology

Publication Preview: Published October 29, 2009

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American Journal of Neuroradiology
DOI 10.3174/ajnr.A1747

HEAD & NECK

Dynamic 320-Section CT Angiography in Cranial Arteriovenous Shunting Lesions

P.A. Brouwer, T. Bosman, M.A.A. van Walderveen, T. Krings, A.A. Leroux and P.W.A. Willems

From the Department of Radiology (P.A.B., T.B., M.A.A.v.W.), Leiden University Medical Centre, Leiden, the Netherlands; and Departments of Medical Imaging (T.K., P.W.A.W.) and Neurosurgery (A.A.L.), Toronto Western Hospital, Toronto, Ontario, Canada.

Please address correspondence to Timo Krings, MD, PhD, Department of Neuroradiology, University Health Network, Toronto Western Hospital 3MCL-429, 399 Bathurst St, Toronto, ON, M5T 2S8, Canada; e-mail: Timo.Krings{at}uhn.on.ca

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: VR, volume-rendering