Healthy
Conditions
Brief summary
Comparison of 3 MRI scanners.
Detailed description
Comparing the strengths and weaknesses of 3 different MRI scanners in their performance of a functional MRI (an MRI that shows which areas in the brain are active during some sort of task).
Interventions
DIAGNOSTIC_TESTFunctional MRI (fMRI)
fMRI will be done on 3 separate MRI scanners to compare.
Sponsors
Mayo Clinic
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes
Inclusion criteria
1\) Men and Women aged 18-55
Exclusion criteria
1. Patients with safety contraindications to MRI scanning at 3T. 2. Patients unable to adequately perform the fMRI task due to physical, neurological, or cognitive disability. 3. Patients that demonstrate 3 mm or greater translational head motion during scanning of the fMRI rhyming task data sets. 4. Pregnant women. 5. Patients that have implanted medical devices or other safety contraindications for a 7T or 3T MRI exam.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Statistical maxima of fMRI language and motor area activations. | Approximately 6 months after last subject is scanned | For the task-based fMRI comparison, a region of interest will be drawn around activation maps overlying Broca's and Wernicke's language areas as well as the hand motor area. The data regarding each of the three regions will be treated separately. The statistical maxima for functional activation within these areas will be measured and compared using the same areas and technique on the three scanner platforms to determine which is the highest. This will be performed using the PRISM software we already use clinically to interpret fMRI. |
| Signal to noise ratio assessment of resting state. | Approximately 6 months after last subject is scanned | For the resting state fMRI comparison, a standard measurement of signal to noise ratio will be employed specifically using the default mode network. This data will be reported separately from the task based outcome #1 as they are unrelated. Because this is a ratio is has no units of measurement. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Neuroradiologist preference for scanner array. | Approximately 6 months after last subject is scanned | Two board certified neuroradiologists will simply rank the 3 different scanner platforms (3T, Compact 3T, or the 7T) from most to least preferred for interpreting language and motor task-based fMRI's. This will be their overall qualitative gestalt based on years of daily experience reading these types of studies. |
Countries
United States
Outcome results
None listed