Imaging Techniques in MRI

Magnetic Resonance (MR) Imaging performed on volunteers will be used to develop and optimize techniques useful in the advancement of MRI technology.

Background: - Magnetic resonance imaging (MRI) scans must be performed according to specified sets of parameters that provide optimal images of each organ and each area of the body. These scanning parameters are often specific to the institution or organization at which they are employed, and may also depend on the manufacturer of the MRI scanning equipment. Because MRI scanning equipment is always being updated and upgraded, researchers are interested in developing new and optimized scanning parameters for MRI scans. Objectives: - To improve current methods and develop new techniques for magnetic resonance imaging. Eligibility: Individuals 18 years of age and older who are either volunteers or current NIH protocol participants. Participants must not have any medical history factors (e.g., extreme claustrophobia, history of metal implants) that would prevent them from receiving MRI scans. Design: Participants will have at least one MRI scan that will last from 20 minutes to 2 hours (most scans will last between 45 and 90 minutes). The total time commitment for most visits will be approximately 4 hours from start to finish. Some MRI techniques require standard monitoring equipment or specific procedures during the scanning, such as an electrocardiogram. Participants will have blood samples taken at the time of the scan. Some MRI studies will require the use of a contrast agent that will be administered during the scan. Volunteers may be asked to return for additional MRI scans over the course of a few years. Follow-up scans may be done on the same part of the body or on different parts of the body. No more than one MRI scan will be performed in any 4-week period for this protocol.

Imaging Techniques in MRI

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