Abstract #1845

Multimodality Phantom Targeting Fluoroscopically Occult Lesions in the Fluoro Suite Using 3D MRI/CT Overlay Guidance

Ye Tao¹, Tina Ehtiati², Jesse Klostranec³, Guan Wang¹, AbdEl-Monem M. El-Sharkawy⁴, Monica S. Pearl¹, William A. Edelstein¹, Martin G. Radvany¹

¹Johns Hopkins School of Medicine, Baltimore, MD, United States; ²SiemensCorporate Research, Princeton, NJ, United States; ³University of Toronto School of Medicine, Toronto, Ontario, Canada; ⁴Johns Hopkins University, Baltimore, MD, United States

Various medical conditions require biopsy confirmation or minimally invasive image-guided interventions. MRI provides excellent visualization of anatomy and disease without ionizing radiation, but MRI interventional access is difficult and MRI compatible clinical equipment limited. CT has few equipment restrictions, but radiation exposure can be significant. Fusion/overlay of MRI and fluoroscopy suite cone-beam CT (CBCT) potentially combine the diagnostic quality of 3D MRI/CT imaging with the ease and speed of fluoroscopy and decreased radiation. We have developed a multimodality phantom containing simulated lesions occult to fluoroscopy, and have used MRI/CBCT image fusion guidance for successful simulated lesion biopsies.