MRI High Field
MRI scanners scan the body in slices. On a high field or closed MRI system, the slice can be thinner, improving the image the physician uses to diagnose the problem.
• High field MRI systems take less time due to the higher magnetic field strength. High field scans can be one and a half to two times faster than an “open” scan. As the scan time lengthens, the patient is more prone to movement, which reduces image quality.
• High field scanners provide the most advanced imaging techniques, some of which cannot be performed on an “open” scanner.
High field scanners are currently designed to increase patient comfort as well as reduce the anxiety that may occur with MRI patients. The newer scanners are designed with a substantially shorter bore or tube than the older scanners. This allows for the patient’s head to be outside the bore of the magnet for a number of scans. The bore of the magnet is flared at the ends, so if a patient needs to be inside the scanner, the “closed in” feeling is reduced because the patient’s head is towards a flared end. In addition, the bore has a larger width than that of the older scanners, which provides more room around the patient while inside the scanner
Types of MRI Scans
Full Body MRI