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Abstract #2639

Localization of the habenula and stimulating electrodes in pre/post-DBS surgery using MRI

Yan Li1, Naying He1, Ewart Mark Haacke2, and Fuhua Yan1

1Department of Radiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China, 2Department of Radiology, Wayne State University, Detroit, MI, United States

Deep brain stimulation of the lateral habenula is a common approach to treat refractory depression and other psychiatric diseases. It is very important to know the exact position of the habenula before positioning the electrodes. We conducted phantom experiments using a clinical DBS wire to determine the characteristics of the artifacts stemming from the electrodes and also scanned 6 pre/post-DBS patients on a 1.5T scanner. Both T2W TSE and high resolution GRE imaging clearly visualized the electrodes through the geometric distortion artifacts. 3D T1 MPRAGE, T2W TSE and 3D GRE provided a rapid protocol for scanning patients pre/post-DBS treatment.

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