Effect of surgical modification of deep brain stimulation lead trajectories on radiofrequency heating during MRI at 3T: from phantom experiments to clinical implementation

• DOI: 10.3171/2023.8.jns23580
• Publication Date: 2023-11-11T01:28:23Z
• Authors: Jasmine Vu; Bhumi Bhusal; Joshua M. Rosenow; Julie Pilitsis; Laleh Golestanirad
• Keywords: Lead (geology)

Radiofrequency (RF) tissue heating around deep brain stimulation (DBS) leads is a well-known safety risk during MRI, resulting in strict imaging guidelines and limited allowable protocols. The implanted lead's trajectory orientation with respect to the MRI electric fields contribute variations magnitude of RF across patients. Currently, there are no surgical requirements for implanting extracranial portion DBS lead, substantial clinical lead trajectories consequently heating. Recent studies have shown that incorporating concentric loops can reduce However, optimal positioning quantitative benefit modification terms added margins remain unknown. In this study, authors systematically evaluated characteristics minimize 3T develop best practices safe access postoperative they present first implementation these modified trajectories.