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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 27:1700-1702, September 2006
© 2006 American Society of Neuroradiology

Technical Note
INTERVENTIONAL

Intra-Arterial Digital Subtraction Angiography Through the Ear Artery for Experimental Aneurysm Imaging

Y.H. Ding^a, D. Dai^a, M.A. Danielson^a, R. Kadirvel^a, D.A. Lewis^a, H.J. Cloft^a and D.F. Kallmes^a

^a From the Neuroradiology Research Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minn

Please address correspondence to: David F. Kallmes, MD, Mayo Clinic, 200 First St, SW, Rochester, MN 55905; e-mail: kallmes.david{at}mayo.edu

SUMMARY: Digital subtraction angiography through the central artery of the ear was performed to show elastase-induced aneurysms in 34 rabbits. Twenty-eight (82%) aneurysms in which common origins of the bilateral common carotid artery (CCA) were found were well shown. All 6 other aneurysms not well shown had separate origins of the CCAs from the aortic arch (P < .001). This method can be used for angiographic follow-up when there is a common origin of the CCAs.