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Abstract #0652

Automatic, Rapid, Non-Invasive and Precise Localization of Thalamic Nuclei for Deep Brain Stimulation (DBS) Surgery Using a Combination of Diffusion & Functional MRI

MAGNA25Halleh Ghaderi1, 2, Abbas Sadikot3, Jennifer Campbell2, G. Bruce Pike2, 3

1Biomedical Engineering, McGill University, Montreal, Quebec, Canada; 2McConnell Brain Imaging Center, Montreal, Quebec, Canada; 3Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada

Deep brain stimulation (DBS) is a surgical treatment for Parkinsons disease that involves implanting electrode in thalamus of awake patients. The success of this surgery is highly influenced by the accuracy of target localization. Current DBS planning is limited to visual inspection of anatomical MRI and micro-electrode recording during the surgery to find the target. This may require multiple insertions, thus increasing the risk of complications. Therefore, the conventional target localization is complex, tedious and time-consuming for surgeon and uncomfortable for an awake patient. This study proposes a non-invasive, automatic, rapid technique to accurately localize thalamic nuclei using a combination of Diffusion imaging and functional MRI.

Keywords

able accuracy accurately activate activated activation activations adverse anatomical angular applied auditory automatic awake axial beats biomedical brain closest cohort coil combination combined complex complications conference confirm connectivity consuming control coronal corresponds cortex cortical deconvolution deep described developed diffusion dimensional disease distinct done eigenvector electrode electrodes enhance fact five frequency functional gradient green hand head highly implant implanting incoming influenced insertions inspection international intra invasive involved involves landmarks lateral linear localization localize location macro made magnetization mathematics maximize modalities moreover motor neurology neurosurgeon neurosurgery novel nuclei nucleus operative orientation part particularly pathways patients physiologically pike planning plenum poor position precise prepared press procedure proceedings processing propose quickly rage rapid reconstructed recording regularization require resolution risk sample sensory slice spatial spherical stimulation stimulus streamline success surgeon surgery symposium tapping target task tedious thalamus therapeutic tissue took toolbox track tracking tracts treatment trio typically uncomfortable unique validate validation vector view views visual whole