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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 26:2368-2370, October 2005
© 2005 American Society of Neuroradiology

Technical Note
INTERVENTIONAL

Stent-Assisted Coiling of Intracranial Aneurysms Aided by Virtual Parent Artery Reconstruction

Christof Karmonik^a, Charles M. Strother^a, Xiaoyan Chen^c, Frank Deinzer^c, Richard Klucznik^b and Michel E. Mawad^a,b

^a Department of Radiology, Baylor College of Medicine, Houston, TX
^b Department of Radiology, The Methodist Hospital, Houston, TX
^c Siemens Medical Systems, Erlangen, Germany

Address correspondence to Christof Karmonik, PhD, Department of Radiology, The Methodist Hospital, M 214, 6565 Fannin, Houston, TX 77030

Summary: The availability of stents designed specifically for use in the intracranial vasculature has increased the use of stent-assisted coiling for treatment of wide-necked and complex intracranial aneurysms. We present a technique for pretreatment planning and visualization of a virtual stent within the parent artery by using a virtual reconstruction of the parent artery across the aneurysm neck. As illustrated by 2 clinical examples, this method provides information not otherwise available regarding the location of portions of the stent that are not visible on fluoroscopy. During treatment, this information enhances the ability to determine the location of coils in relation to the stent boundaries and should thereby improve the ability to avoid parent artery compromise.