Measurements Using NMR Imaging Systems TRIZ Cases
- Magnetic Resonance Imaging Lipid Signal Suppression
Spectrum selective inversion RF pulses suppress lipid signals in magnetic resonance spectroscopy.
- MRI Multi-Slice Imaging Prepulse Interference Control
MRI apparatus determines slice collection order and center frequencies to prevent prepulse interference during multi-signal acquisition.
- Atlas-Based Masking for Quantitative Susceptibility Mapping
Atlas-based segmentation generates QSM masks, reducing user parameter dependency and improving reproducibility.
- Simultaneous Time-Interleaved Multislice MRI Acquisition
STIMS acquisition interleaves slice excitation within a single repetition time, eliminating slab boundary artifacts while maintaining tissue contrast.
- PROPELLER MRI Water-Fat Separation via Dixon Technique
A PROPELLER MRI method acquires k-space blade data using a Dixon technique to separate water and fat signals.
- GRAPPA Operator Gridding for MRI Trajectory Correction
GROG weights shift MR projections to align with desired k-space points, correcting gradient delays without additional acquisitions.
- MRI Reconstruction Using Phase-Corrected K-Space Sampling
A magnetic resonance image reconstruction method uses phase-corrected kernels to process undersampled k-space data.
- Compressed MRF Dictionary via rSVD for MRI Memory Reduction
Randomized singular value decomposition compresses magnetic resonance fingerprinting dictionaries to reduce memory footprint.
- Rotational Invariants of Cumulant Expansion for dMRI Tissue Characterization
RICE techniques generate hardware-independent rotational invariants from diffusion magnetic resonance signals.
- 3D MRI Motion Correction via Variable K-Space Sampling
Segmented k-space acquisition reduces computational burden while maintaining motion correction accuracy in emergency MRI scans.
- Varying Blip Amplitude MRI Trajectories for Incoherent Sampling
A blipped trajectory with varying blip amplitudes modulates gradient energy to produce incoherent sampling patterns.
- Symmetrical k-space Trajectory Truncation for MRI Excitation
Truncating a symmetrical k-space excitation trajectory shortens echo time and reduces off-resonance effects without compromising spatial resolution.
- Dynamic B0 Shimming for Fat Saturation in MRI
A shim coil assembly alters B0 field inhomogeneity to enable fat saturation pulses.