Methods and devices for optimization of magnetic resonance imaging protocols

摘要: MRI techniques are widely and successfully applied in medicine biophysics because provides good contrast between different soft tissues without ionizing radiation. protocols optimized four aspects: imaging parameters, k-space strategies, RF system calibration inhomogeneity correction. The signal intensities of normal disease simulated, for example, using Bloch equations an sequence with tissue MR parameters. relationships parameters contrasts calculated the numerically simulated intensities. optimal and/or strategies determined to maximize image minimize artifacts acceptable spatial-temporal resolution based on characterization hardware. is optionally calibrated improve accuracy reduce inter-scanner variability. Additionally, contrast-to-noise caused by transmit field receive sensitivity corrected flip angle measured receiver sensitivity.