Stimulation-Optimized Gradient Coil
AssigneeSiemens Healthineers AG
InventorsAndreas Krug, Sascha Fath, Simon Bauer
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Abstract
A gradient coil arrangement of an MRI system is described that defines a first and at least one second axis in different spatial directions. Disposed in each spatial direction is at least one gradient coil which generates a magnetic gradient field along the respective axis. The magnetic gradient fields each have a maximum field region which corresponds to a region in which the field strength attains a predetermined percentage of the maximum strength. The gradient coil of the first axis is configured such that the overlap of its maximum field region with that of the at least one second axis is less than a limit value.
Claims16
A gradient coil arrangement for a magnetic resonance imaging (MRI) system, the gradient coil arrangement comprising a first axis and at least one second axis in different spatial directions than one another, the gradient coil arrangement comprising:
- at least one gradient coil for each of the different spatial directions, each gradient coil being configured to generate a magnetic gradient field in a direction of a respective axis,
- wherein the gradient coil for each of the different spatial directions is configured to generate a magnetic gradient field having a respective maximum field region corresponding to a spatial region in which a field strength attains at least a predetermined percentage of a maximum field strength of the respective magnetic gradient field, and
- wherein a gradient coil of the first axis is configured such that a spatial overlap of a maximum field region of the magnetic gradient field in a direction of the at least one second axis is less than a predetermined limit value.
A magnetic resonance imaging (MRI) system, comprising:
- a main magnet;
- and
- a gradient coil arrangement including a first axis and at least one second axis in different spatial directions than one another, the gradient coil arrangement comprising at least one gradient coil for each of the different spatial directions, each gradient coil being configured to generate a magnetic gradient field in a direction of a respective axis,
- wherein the gradient coil for each of the different spatial directions is configured to generate a magnetic gradient field having a respective maximum field region corresponding to a spatial region in which a field strength attains at least a predetermined percentage of a maximum field strength of the respective magnetic gradient field, and
- wherein a gradient coil of the first axis is configured such that a spatial overlap of a maximum field region of the magnetic gradient field in a direction of the at least one second axis is less than a predetermined limit value.
Dependencies are inferred from the claim text.