Anomaly detection using magnetic resonance fingerprinting

摘要

The present invention provides a medical imaging system 100, 300, 500, 600 comprising a memory 110 for storing a machine executable instruction 120 and a processor 106 for controlling medical instruments.Execution of the machine executable instruction isProcessorThe MRF magnetic resonance data 122 acquired in accordance with the MRF magnetic resonance imaging protocol of interest region 310 is received (200)According to MRF magnetic resonance imaging protocolMRF magnetic resonance data is used to reconstruct MRF vectors 124 for each voxel set of voxels describing interest regions (202)By applying a pre-defined preprocessing routine to the MRF vector for each voxelFor each of the voxel setsCalculate preprocessed MRF vector 126714)The pre-defined preprocessing routine isIncluding normalizing preprocessed MRF vectors for each voxelMachine learning algorithmBy assigning an outlier score 800 to the preprocessed MRF vectorSet the offset value map 130 for the voxel set716).