About this trial
The goal of this interventional study (clinical trial) is to learn if different breath-holding techniques, with and without extra oxygen, can improve the quality of abdominal Magnetic Resonance Imaging (MRI) images in healthy adults, ages 18-75.
The main questions it aims to answer are:
* Does breath-holding at end-expiration improve image quality in abdominal MRI scans? * Does adding oxygen while breath-holding further reduce motion artifacts in abdominal MRI scans?
Researchers will compare breath-holding with and without oxygen to see if using oxygen improves image quality during MRI scans.
Participants will:
* Be pre-screened for MRI safety and trained on breath-hold procedures * Have one non-contrast abdominal MRI scan at the University of California San Francisco (UCSF) China Basin Imaging Center * Use two different breath-holding techniques during the scan, with and without oxygen * Complete one study visit lasting about 45 minutes to 1 hour
Eligibility criteria
Qualifiers
Subject must be within 18-75 years of age;
Subject must be able to hear and understand instructions without assistive devices;
Subject must provide written informed consent;
Subject has the necessary mental capacity to understand instructions, and is able to comply with protocol requirements;
Disqualifiers
Subjects with a weight greater than 499 lbs;
Subjects that have metallic/conductive or electrically/magnetically active implants without Magnetic Resonance (MR) Safe or Magnetic Resonance (MR) Conditional labeling, with the exception of dental devices/fillings, surgical clips, and surgical staples determined to be safe for MRI scanning by a physician investigator;
Subjects that have implants with MR Unsafe labeling;
Subjects that have implants labeled as MR Conditional by the manufacturer for which the allowable conditions are not expected to be achieved by the MR environment or scan protocol;
Trial design
Treatments tested in this trial
- Breath-hold conditions