NMR Tomography Using Non-Bijective Spatially Varying Magnetic Fields

The imaging area is divided into multiple partial areas, each with its own gradient system. This segmentation allows each gradient to operate at lower strength individually, reducing mechanical load and noise while maintaining overall imaging resolution through the combined effect of multiple partial gradients.

Different gradient strengths and configurations are applied to different partial areas according to local imaging requirements. Each partial area receives customized gradient encoding optimized for its specific spatial characteristics, reducing unnecessary mechanical interaction in regions where high resolution is not required.

By dividing the imaging area into partial areas with separate gradient systems, the patent enables parallel processing of multiple regions simultaneously. This segmentation allows faster imaging through concurrent measurement in different areas while keeping individual gradient changes slow enough to avoid neuronal stimulation.

The gradient systems in different partial areas can be switched in a coordinated periodic manner, allowing rapid sequential imaging across multiple regions while maintaining slow individual gradient transitions that are safe for neuronal tissue.

The patent segments the imaging area into multiple partial areas, each with dedicated gradient systems. This segmentation allows the use of weaker, more localized gradients that minimize neuronal stimulation while the distributed architecture reduces mechanical interaction by preventing the need for strong global gradient changes.

The gradient systems in different partial areas generate opposing magnetic field changes that can compensate for each other's mechanical effects. When adjacent partial areas have opposing gradient directions, the resulting Lorentz forces partially cancel out, reducing overall mechanical interaction and vibration.