An interventional study of MRI screening form and Urine pregnancy test in Hydrocephalus and Alzheimer Disease, sponsored by Mayo Clinic. Recruiting at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-01-06.
Sponsored by Mayo Clinic · Not applicable, Interventional, and Diagnostic
The Researchers are trying to test a MR imaging method for detection of Cerebral Spinal Fluid (CSF) flow in the brain to help diagnosis and better understand diseases that affect brain function.
The purpose of this research is to figure out if MR imaging can detect movement of CSF (fluid around the brain) to help better diagnosis and understand the cause of diseases that affect brain function. We are doing this research study to find out if movement of CSF is different between healthy adults and those with a disease that affects brain function.
210 studies on the registry are indexed under Hydrocephalus; 51 are open to participants now.
This study's planned enrollment of 50 is close to the median of 50 across 105 interventional studies indexed under Hydrocephalus.
Browse Hydrocephalus studies →Mayo Clinic is the lead sponsor of 3,218 studies on the registry; 670 are open to participants now.
Of its 445 completed or terminated interventional studies of FDA-regulated products, 313 (70%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Participants will be asked to complete a MRI screening form to check for the presence of metallic implants and materials. People with pacemakers, aneurysm clips, and cochlear implants, or metal/foreign objects in their eyes cannot have an MRI and will not be able to participate in the study. Pre-menopausal females will be asked if they think they may be pregnant. If yes, a urine pregnancy test will be performed. Those who meet eligibility criteria for the study and have agreed to participate will be taken to the MRI suite when MR imaging of the brain will be performed.
Other: MRI screening form · Diagnostic Test: Urine pregnancy test · Diagnostic Test: MR brain
Participants will be asked to complete a MRI screening form to check for the presence of metallic implants and materials. People with pacemakers, aneurysm clips, and cochlear implants, or metal/foreign objects in their eyes cannot have an MRI and will not be able to participate in the study.
Pre-menopausal females will be asked if they think they may be pregnant. If yes, a urine pregnancy test will be performed.
You will be asked to lie down on the bed of the MRI scanner. Then a MRI coil/"antenna" will be placed over your head. This will allow us to get clearer pictures of the tissue of interest. The MRI machine makes loud knocking sounds. Because of this you will be asked to wear earplugs. You will receive a "squeeze ball" alarm in case you need urgent help. We will be able to talk with you and hear you during the MRI exam. The entire MRI scan will last about 45-60 minutes. The MR exam will include standard clinical images as well as the CSF flow imaging.
CSF flow measurement
CSF flow will be measured in participants and compared between those with unimpaired brain function and those with clinical diagnosis of a disease that affects brain function, such as Alzheimer's disease and normal pressure hydrocephalus.
Time frame: At the time of MR exam, approximately one hour
Volume of CSF spaces
Using standard clinical imaging techniques and computer-automated segmentation methods, the intra and extra-ventricular CSF volume will be measured for each subject.
Time frame: At the time of MR exam, approximately one hour
White matter disease
Using standard clinical imaging techniques and computer-automated algorithms, the volume of white matter disease (hyperintense foci in the white matter on T2-weighted MR sequences) will be measured in each subject.
Time frame: At the time of MR exam, approximately one hour
Plan to share: No
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