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System and Method for Quantifying T1, T2 and Resonance Frequency Using Rosette Trajectory Acquisition and Read Segmented Reconstruction
System and Method for Quantifying T1, T2 and Resonance Frequency Using Rosette Trajectory Acquisition and Read Segmented Reconstruction
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机译:利用玫瑰花轨迹捕获和读取分段重构来量化T1,T2和共振频率的系统和方法
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摘要
A method for quantifying T1, T2 and resonance frequency simultaneously using magnetic resonance fingerprinting (MRF) includes accessing an MRF dictionary using a magnetic resonance imaging (MRI) system. The MRF dictionary is generated by simulating signal evolutions that include associated off-resonance effects for each signal evolution. The method further includes acquiring MRF data from a region of interest in a subject using the MRI system and a MRF pulse sequence having a plurality of radio frequency (RF) excitations and a readout associated with each RF excitation. Each readout includes a plurality of segments and each segment is used to generate a time frame. The method also include comparing the MRF data to the MRF dictionary to identify a plurality of parameters including T1, T2 and resonance frequency for the MRF data and generating a report indicating the at least one of the plurality of parameters of the MRF data.
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