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AJNR - American Journal of Neuroradiology

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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

View larger version (77K): [in a new window]   Fig 1. Ear IADSA showing contrast from the left ear artery (left block arrow) to the parent artery of the aneurysm.

View larger version (115K): [in a new window]   Fig 2. Ear IADSA. Both embolized aneurysm and parent artery (right block arrow) are well shown. Note that more contrast fills the LCCA (notched right arrow) because contrast material is injected through the left ear artery. In addition, LCCA and RCCA originate at the same location from the aorta (black arrow).

View larger version (99K): [in a new window]   Fig 3. IADSA through the left ear artery. Both embolized aneurysm and parent artery (right block arrow) are not well shown. Note that the LCCA (notched right arrow) is seriously opacified. On the contrary, the parent artery is very faint. LCCA and RCCA, originating separately from the aorta (black arrow).