Try the modernized beta website. Learn more about the modernization effort.
Working… Menu

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

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01809613
Recruitment Status : Completed
First Posted : March 13, 2013
Last Update Posted : August 3, 2017
Information provided by (Responsible Party):
Kendall H. Lee, Mayo Clinic

Brief Summary:
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 or disease Intervention/treatment
Parkinson Disease Essential Tremor Dystonia Obsessive Compulsive Disorder Procedure: Functional Magnetic Resonance Imaging (fMRI)

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.

Layout table for study information
Study Type : Observational
Actual Enrollment : 88 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Functional Magnetic Resonance Imaging (fMRI) During Deep Brain Stimulation (DBS) to Treat Parkinson's Disease
Study Start Date : March 2013
Actual Primary Completion Date : July 27, 2017
Actual Study Completion Date : July 27, 2017

Group/Cohort Intervention/treatment
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.

Primary Outcome Measures :
  1. 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.

Information from the National Library of Medicine

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, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years to 90 Years   (Adult, Older Adult)
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.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01809613

Layout table for location information
United States, Minnesota
Mayo Clinic
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
Mayo Clinic
Layout table for investigator information
Principal Investigator: Kendall Lee, MD, PhD Mayo Clinic
Publications automatically indexed to this study by Identifier (NCT Number):
Layout table for additonal information
Responsible Party: Kendall H. Lee, PI, Mayo Clinic Identifier: NCT01809613    
Other Study ID Numbers: 12-009020
First Posted: March 13, 2013    Key Record Dates
Last Update Posted: August 3, 2017
Last Verified: August 2017
Keywords provided by Kendall H. Lee, Mayo Clinic:
Parkinson disease
Deep Brain Stimulation
Functional Magnetic Resonance Imaging
Additional relevant MeSH terms:
Layout table for MeSH terms
Parkinson Disease
Essential Tremor
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
Neurologic Manifestations