Invention Grant
US08421459B2 System and method for reducing blurring artifacts in multi-spectral MR imaging near metal 有权
用于减少金属附近的多光谱MR成像中的模糊伪影的系统和方法

System and method for reducing blurring artifacts in multi-spectral MR imaging near metal
Abstract:
A system and method for reducing blurring artifacts in multi-spectral MR imaging near metal include an MRI system having a plurality of gradient coils positioned about a bore of a magnet and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images. A computer is also included and programmed to acquire a plurality of three-dimensional (3D) MR data sets, each 3D MR data set acquired using a central transmit frequency and a central receive frequency set to an offset frequency value that is distinct for each 3D MR data set. The computer is also programmed to reconstruct a subimage for each of the plurality of 3D data sets, apply a de-blurring correction to each of the subimages, and generate a composite image based on the plurality of 3D MR data sets.
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