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Functional Magnetic Resonance Imaging (fMRI) During Deep Brain Stimulation (DBS) to Treat Parkinson's Disease

This study is currently recruiting participants. (see Contacts and Locations)
Verified March 2017 by Mayo Clinic
Information provided by (Responsible Party):
Kendall H. Lee, Mayo Clinic Identifier:
First received: March 11, 2013
Last updated: March 23, 2017
Last verified: March 2017
This study is investigating the usefulness of using functional magnetic resonance imaging (fMRI) to monitor brain activation during deep brain stimulation for Parkinson's Disease, Essential tremor, dystonia, OCD, depression, pain, Tourette's syndrome, and epilepsy. The study may determine the relationship between patterns of brain activation and therapeutic outcome and/or side effects.

Condition Intervention
Parkinson Disease
Essential Tremor
Obsessive Compulsive Disorder
Procedure: Functional Magnetic Resonance Imaging (fMRI)

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Functional Magnetic Resonance Imaging (fMRI) During Deep Brain Stimulation (DBS) to Treat Parkinson's Disease

Resource links provided by NLM:

Further study details as provided by Mayo Clinic:

Primary Outcome Measures:
  • Mean Score on Unified Parkinson's Disease Rating Scale (UPDRS) [ Time Frame: 6 months after Deep Brain Stimulation ]
    The UPDRS is a rating scale used to follow the longitudinal course of Parkinson's disease. The version of the scale used in this study has a total of 14 items; each of these item has a scale of 0-4, with 0 being no impairment, and 4 being severe impairment. All of the parts are combined to give a numeric score: 0 indicating no sign of disease, and 56, the highest score indicating severely incapacitated.

Estimated Enrollment: 75
Study Start Date: March 2013
Estimated Study Completion Date: November 2018
Estimated Primary Completion Date: November 2018 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Deep Brain Stimulation
Functional Magnetic Resonance Imaging (fMRI) will be performed to determine the areas of BOLD signal modulation with DBS.
Procedure: Functional Magnetic Resonance Imaging (fMRI)
During the deep brain stimulation (DBS) surgery of the subthalamic nucleus within the thalamocortical basal ganglion, an additional lead extendor will be connected to the DBS electrode to allow externalization of the lead. Following confirmation of electrode location with MRI, a series of fMRI scans will be run. Total scanning time will be limited to 35 minutes.

Detailed Description:
Deep brain stimulation (DBS) is an effective neurosurgical approach for treating motor disorders including Parkinson's disease (PD), Essential Tremor (ET), and dystonia. Its therapeutic benefit has led to the application of DBS to a wide spectrum of disorders including psychiatric conditions, epilepsy, Alzeimer's disease, headache, obsessive-compulsive disorder (OCD), Tourette syndrome, depression and intractable pain. However, because the nature of its underlying mechanisms and clinical effects are not fully understood, precision targeting, decreasing adverse effects, and improving clinical outcomes represent major clinical and scientific challenges in PD and other disorders treated by DBS. Our goal is to investigate the inter-relationships between site-specific neural activation and clinical outcomes during DBS. To do so, we will perform non-invasive functional Magnetic Resonance Imaging (fMRI) to investigate DBS-mediated activation of neural network circuitry. Our proposed protocol involves the addition of intraoperative fMRI to the standard DBS or battery change protocol in order to determine the major sites of activation during application of clinically effective DBS to the subthalamic nucleus (STN), ventral intermediate thalamus (VIM), globus pallidus interna (GPi), fornix, nucleus accumbens (NAc), anterior thalamus and periaqueductal gray matter. Patients will undergo clinical assessment to determine the relative efficacy of DBS stimulation parameters, applied during the fMRI and at regularly scheduled post-operative programming visits up to 6 months of follow-up. Our Specific Aims are to: (1) Identify fMRI-activated brain regions by DBS in patients who undergo DBS surgery (Patients diagnosed with PD, ET, dystonia, OCD, depression, pain, Tourette's syndrome, and epilepsy. (2) Correlate fMRI activation with clinical outcomes and side effects. With the goal of improving DBS electrode targeting for optimal and reproducible clinical outcomes, these experiments will be the first attempt to relate site-specific DBS with functional in vivo imaging data and quantitative longitudinal clinical outcome measures in DBS patients.

Ages Eligible for Study:   18 Years to 90 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients approved and scheduled to undergo the clinical procedure of Deep Brain stimulation.

Inclusion Criteria:

  • Adult Patients with medically intractable Parkinson's Disease who have been approved for DBS surgery by the interdisciplinary Mayo DBS committee.

Exclusion Criteria:

  • Pregnant patients, prisoners, children (age less than 18), and any patients identified as unsuitable for this protocol by the Mayo DBS committee.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01809613

Contact: Cindy Stoppel
Contact: Paul Min, PhD

United States, Minnesota
Mayo Clinic Recruiting
Rochester, Minnesota, United States, 55905
Contact: Cindy Stoppel   
Contact: Paul Min, PhD   
Principal Investigator: Kendall Lee, M.D. Phd         
Principal Investigator: Paul Min, PhD         
Sponsors and Collaborators
Mayo Clinic
Principal Investigator: Kendall Lee, MD, PhD Mayo Clinic
Principal Investigator: Paul Min, PhD Mayo Clinic
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Kendall H. Lee, PI, Mayo Clinic Identifier: NCT01809613     History of Changes
Other Study ID Numbers: 12-009020
Study First Received: March 11, 2013
Last Updated: March 23, 2017

Keywords provided by Mayo Clinic:
Parkinson disease
Deep Brain Stimulation
Functional Magnetic Resonance Imaging

Additional relevant MeSH terms:
Parkinson Disease
Compulsive Personality Disorder
Obsessive-Compulsive Disorder
Parkinsonian Disorders
Basal Ganglia Diseases
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Movement Disorders
Neurodegenerative Diseases
Personality Disorders
Mental Disorders
Anxiety Disorders
Compulsive Behavior
Essential Tremor
Neurologic Manifestations
Signs and Symptoms
Impulsive Behavior processed this record on April 21, 2017