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Abstract #0266

MRI-Guided and Monitored Laser Ablation for Renal Malignancy: A Step toward Moving Interventional MRI Technology to Mainstream Usage?

Sherif G. Nour 1,2 , Andrew David Nicholson 1,2 , Tracy E. Powell 1,2 , Melinda M. Lewis 3,4 , and Viraj Master 4,5

1 Radiology and Imaging Sciences, Emory University Hospital, Atlanta, GA, United States, 2 Interventional MRI Program, Emory University Hospital, Atlanta, GA, United States, 3 Pathology, Emory University Hospital, GA, United States, 4 School of Medicine, Emory University, GA, United States, 5 Urology, Emory University Hospital, GA, United States

Interventional MRI technology has been used to guide and monitor renal ablation procedures because of its ability to provide online feedback on ablation progress and determine treatment endpoints based of individual tumor responses. The dissemination of this application of iMRI has been hampered by the cumbersome handling of cryoprobes/RFA probes and their cablings within the limited gantry space. We report a simple approach for interactive guidance and real-time monitoring of renal ablations performed entirely within an interventional MRI suite using a short introducing needle and a flexible laser fiber. The technique, safety, and short- and intermediate-term efficacy are discussed.

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