Measurements Using Magnetic Resonance TRIZ Cases

Optically controlled on-coil RF amplification cuts coaxial losses and cross-talk while enabling dual-frequency multi-nuclear MRI.

Optical control and on-coil dual tuning replace coaxial RF links, cutting interference and matching complexity in high-field multi-nuclear MRI.

Spaced MRI shield elements use thermal bus links with different heat transfer paths to stabilize eddy currents and reduce imaging artifacts.

Automated detection and adjustment of adjacent MRI coil overlap keeps positioning in a critical range to preserve image quality and throughput.

Non-magnetic inductors on a multilayer PCB filter gradient-coil noise near the main magnet without magnetic saturation, preserving MRI image quality.

Parallel RF amplifier circuits use opposite reactance and tailored impedance conversion to handle MRI load changes without large isolators.

An intraoral and extraoral coil pair uses inductive coupling to boost dental MRI signal-to-noise ratio and image quality.

Overlapping conductor segments create distributed capacitive coupling in an RF coil, cutting eddy currents, local heating, and discrete capacitor use.

Flexible coil units on protective layers conform to neck, elbow, and shoulder anatomy to improve MR signal quality and coverage.

A variable-tuned pseudo-birdcage coil projects a uniform field outward for single-sided MRI, improving access and patient movement.

Placing the ramp-down load assembly inside the MRI vacuum chamber cuts bulky aluminum heat storage, reducing weight and saving space.

A fluid-responsive flexible band automatically wraps and releases an MRI reception coil, cutting manual setup effort and exam time.

Flexible coil traces replace rigid RF parts and PCBs to improve body fit, reduce B0 distortion, and raise MRI signal quality.

A movable sliding band capacitor tunes a cooled NMR parent coil without leads, improving RF homogeneity and signal-to-noise ratio.

A centered transfer arm and load lock move samples into a magnetic resonance system with precise alignment, low heat transfer, and faster changes.

A resonant Lenz lens focuses the NMR B1 field for small samples while compensating frequency shifts to stay within probe tuning range.

Motorized multi-axis support moves the primary magnet to align the homogeneous field region with the resonator in compact MRI setups.

Dual pressure sensing adapts helium tank setpoints to atmospheric changes, reducing helium loss, measurement artifacts, and NMR magnet failures.

Stacked shim plates with insulating coatings improve MRI main field homogeneity while keeping the gradient coil unit compact.

Overlapping flexible MRI receive coils use spacers and outer layers to conform to body shape while preserving coil position and coupling.

Alternating-current induction vibrates stuck MRI switch parts to release jamming in sealed cryostat sections without disassembly.

A split-ring parasitic element enables impedance matching without lumped components, boosting MRI coil gain and sensitivity with less loss.

Mechanical gaps and transformer decoupling reduce ring-mode coupling in MRI RF coils, improving B1 uniformity, tuning, and power efficiency.

A modified dipole with split-ring parasitic elements inside an MRI loop coil raises gain and directivity without shrinking coil diameter.

Liquid cooling replaces fan-based filter cooling in MRI gradient cable links, cutting noise and wear while preserving RF shielding.