Magnetic Measurements TRIZ Cases

Nested phantom chambers align PET and MRI coordinate systems, resolving spatial registration errors from patient movement during sequential scans.

A switchable radio-frequency shield decouples adjacent coil elements in magnetic resonance imaging arrays.

A sensor device limits supply voltage to control output current states and manage power dissipation.

Direct shear wave generation via a pneumatic driver eliminates mode conversion errors and phase inaccuracies in magnetic resonance elastography.

Phosphonated macrocyclic ligands chelate gadolinium ions to increase relaxivity, reducing required contrast agent doses and imaging time.

A scanning-condition recalculating unit adjusts MRI parameters to maintain signal-to-noise ratios during field-of-view changes.

Multi-variate NMR measures solvent transverse relaxation rates to create product fingerprints for non-invasive vaccine authentication.

Continuous table motion enables extended field-of-view MRI acquisition without stationary pauses.

A Pilot Tone signal enables cardiac synchronization via MR receiver coils.

A method selects appropriate coil groups based on support device position to maintain imaging quality.

Segmented insert elements seal liquid contrast media within a universal housing, resolving reproducibility and leakage issues in multi-modal calibration.

A cryocooler assembly extracts thermal energy from intermediate temperature zones within a superconducting magnet system.

Ghost MRI reconstruction segments k-space data to suppress background signals, eliminating ghost artifacts without contrast agents.

Icosahedral diffusion tensor encoding scheme combined with logarithm-moment algorithm resolves scanning speed versus measurement precision trade-off.

A plasma processing apparatus with rotating substrate and magnet holders controls the relative angle between the axis of easy magnetization and the magnetic field during sputtering.

Magnetic resonance apparatus generates slice images while determining spectroscopy regions for simultaneous voxel measurement.

A simultaneous multi-slice navigator acquires movement data rapidly during magnetic resonance imaging sequences.

A tubular shielding device surrounds an MRI examination tube to block radio frequency interference while enabling operator access and maintenance.

A shim coil generates a compensation magnetic field with opposite direction to cancel higher-order terms in the imaging space.

Ultrasound elastic image overlay aligns tissue elasticity data with high-resolution anatomical references for precise spatial correlation.

High magnetic moment wrap shields focus flux at sensor sides, resolving demagnetization interference from external fields that degrades read width sharpness.

A superconducting magnet device uses a heater and parallel current source to transition the persistent switch rapidly.

A magnetic pressure sensing system for an infusion pump uses secondary Hall effect sensors to detect ambient fields and adjust primary signals.

Reference medium tracks B0 drift and shimming changes, enabling accurate temperature difference maps for medical interventions.

Thermally conductive ceramic coil forms reduce eddy currents while heat pipes transfer heat to cryocoolers, maintaining stable cryogenic temperatures.

A 3D Hall sensor integrates vertical and planar elements using specific p-type and n-type well doping patterns.

A B1-insensitive magnetization reset sequence paired with interleaved spiral readouts enables rapid volumetric mapping of the RF field.

An implantable medical device selects program routines using statistical analysis of operation events to adapt to MRI environments.

Attaching a digital display to the inner bore surface reduces patient claustrophobia and anxiety during longer MRI or PET/CT scans.

An underlayer with a first magnetic film and non-magnetic film achieves high fcc (111) orientation, improving magnetic coupling.

Echo planar imaging systems correct temporal phase errors without navigator echoes to eliminate ghost drift.

Combines 2D SENSE with partial Fourier sampling to reduce scan time while maintaining high-resolution image quality.

Velocity-selective RF pulses tag arterial spins by flow speed, eliminating transit delays and improving cerebral blood flow quantification accuracy.

A magnetic sensor uses segmented bias magnets to apply independent magnetic fields to magnetoresistance elements on a board.

Swapping odd and even echoes in separate k-space sets allows magnitude averaging to remove Nyquist ghosts without reducing signal intensity.

A monopole antenna detects electric-field component currents to calculate field vectors, replacing bulky anechoic chambers with compact near-field scanning.

Magnetic sensor pairs detect multi-directional fields to measure currents in multiple wires without precise placement.

A phase correction system measures volume shifts in k-space data to ensure seamless image reconstruction during continuous table motion.

Extending the radio frequency shield axially beyond the coil ends increases patient comfort and imaging volume while maintaining RF uniformity.

Spiral-encoded pulse sequences capture short T2 signals before decay, reducing acquisition time while maintaining high spatial resolution.

Parallel detection algorithms identify magnetic disturbances in magnetometer sensor data to support reliable motion tracking operations.

Spatially-varying reconstruction coefficients estimate unacquired MRI data points from undersampled receiver coil signals.

A dual-modality imaging system combines an MRI apparatus with a non-contact optical detector for simultaneous data acquisition.

Integrates shim coils within the gradient layer to compensate first-order magnetic field inhomogeneities while preserving full gradient power capacity.

Grounded dielectric shielding reduces radiation-induced currents in MRI detector coils, preserving image quality during linear accelerator therapy.

A bi-metal thermal shield combines aluminum and stainless steel to reduce mechanical vibration in superconducting magnets.

A mass transit model estimates blood flow rates by fitting tracked fluid bolus passages to theoretical curves.

Parallel resonant circuit generates high impedance across RF coil element ends to inhibit coupling from adjacent coils.

A telephone service interface connects security monitoring systems via dedicated contacts without accessing the telco side of the network interface device.