Jason Stockmann;Clarissa Zimmerman;Lawrence L. Wald
发明人:
Lawrence L. Wald,Clarissa Zimmerman,Jason Stockmann
申请号：
US14408187
公开号：
US10359481B2
申请日:
2012.10.22
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A portable magnetic resonance imaging (“MRI”) system that uses static magnetic field inhomogeneities in the main magnet for encoding the spatial location of nuclear spins is provided. Also provided is a spatial-encoding scheme for a low-field, low-power consumption, light-weight, and easily transportable MRI system. In general, the portable MRI system spatially encodes images using spatial inhomogeneities in the polarizing magnetic field rather than using gradient fields. Thus, an inhomogeneous static field is used to polarize, readout, and encode an image of the object. To provide spatial encoding, the magnet is rotated around the object to generate a number of differently encoded measurements. An image is then reconstructed by solving for the object most consistent with the data.
