Reducing Vertigo Associated With MRI Machines
Recruiting now · Not applicable
Conditions studied: Vertigo, Dizziness
In brief
Vertigo, dizziness, and imbalance are commonly reported by patients and technologists when near high-field strength magnets (\>4 Tesla, T) used for magnetic resonance imaging (MRI) (1-5) Prior research from the investigators has established that the mechanism is likely a Lorentz force occurring in the inner ear, as a result of interactions with normal electrical currents in the inner ear and the strong static magnetic field of the MRI machine. The investigators have recently developed preliminary data to suggest that slower rates of entry into the magnetic field can greatly attenuate the sensations of vertigo. The explanation for this is that the rates of vestibular adaptation exceed that of the stimulus, allowed a reduction or elimination of the symptoms of vertigo. The aim of this study is to recruit individuals who are already getting an MRI scan as part of other research studies to randomize the rate of entry into and exit from the static magnetic field (i.e., before and after imaging is performed). The usual rate of entry is 20 seconds. This will be increased to one, two or three minutes. The investigators will record subjective sensations of dizziness and vertigo associated with the entry into the MRI.
Key facts
- Study ID
- NCT06062368
- Run by
- Johns Hopkins University
- People needed
- 100
- Starts
- 2024-01-15
- Expected to finish
- 2028-01-01
- Last updated by the study team
- 2025-11-12
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Participants who will be undergoing an MRI scan at a 7 Tesla MRI.
You may not qualify if…
- Exclusion criteria include pacemaker, defibrillator wires, metal implants, cochlear implants, or ferromagnetic surgical clips in the brain.
- Pregnancy
- Claustrophobia occurs in perhaps 5% of patients, and they will not proceed with the test. All subjects will fill out the routine pretesting MRI questionnaire.
Where it is running
- Johns Hopkins University School of Medicine — Baltimore, Maryland, United States (enrolling)
Full record on ClinicalTrials.gov
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