A gradient coil design method for a biomedical imaging system and a gradient coil

A gradient coil and imaging system technology, applied in the field of biomedical imaging, can solve problems such as the inability to meet the application requirements of a magnetic resonance system, and achieve the effects of improving space utilization, improving imaging quality, and improving accuracy

Inactive Publication Date: 2019-06-14
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

At present, the existing gradient coil design methods include two categories: current driving method and voltage driving method, which are respectively applied to macro-scale and micro-scale biomedical imaging systems. Gradient coil bearing surface, which has not been extended to non-developable surfaces, cannot meet the various application requirements of magnetic resonance systems

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  • A gradient coil design method for a biomedical imaging system and a gradient coil
  • A gradient coil design method for a biomedical imaging system and a gradient coil
  • A gradient coil design method for a biomedical imaging system and a gradient coil

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[0061] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0062] The gradient coil design method for the biomedical imaging system of the embodiment of the present application adopts the non-developable curved surface (such as the curved surface of the human head, spherical surface) as the gradient coil bearing surface, and distributes at least two or more than two coils on the non-developable curved surface. wire, and use a drive circuit (current drive or voltage drive) to drive the wire, determine the spatial position of the wire, and finally obtain the configuration of the wire in three-dimensional space, and process the gradient coil according...

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Abstract

The invention relates to a gradient coil design method for a biomedical imaging system and a gradient coil. The gradient coil design method for the biomedical imaging system comprises the following steps that a, a non-developable curved surface serves as a gradient coil bearing surface of a gradient coil, and the gradient coil design method comprises the following steps that a, dividing and dispersing the non-developable gradient coil bearing surface; b, distributing at least two wires which are connected with each other on the bearing surface of the non-developable gradient coil after subdivision and dispersion; c, driving the wire by adopting a driving circuit, determining the spatial position of the wire, and obtaining the configuration of the wire in a three-dimensional space; and d, processing a gradient coil according to the configuration of the wire. According to the invention, the gradient coil bearing surface is expanded from an expandable surface (a cylinder or an elliptic cylinder) to an unexpandable curved surface, various application requirements of a magnetic biological imaging system are met, and the imaging quality is improved.

Description

technical field [0001] The present application belongs to the technical field of biomedical imaging, and in particular relates to a gradient coil design method and a gradient coil for a biomedical imaging system. Background technique [0002] The gradient coil is the core functional part of the magnetic resonance system. The design of the gradient coil is that the current through the coil can be calculated according to the Biot-Savart (Biot-Savart) law. The type of the magnetic field generated is within a certain gradient range, and its linearity, inductance and other performance parameters will directly affect the imaging quality and response time of the biomedical imaging system. Reducing the distance between the load-bearing surface of the coil gradient coil and the region of interest can effectively improve the imaging quality of biomedical imaging. At present, the existing gradient coil design methods include two categories: current drive method and voltage drive metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 刘震宇何锋赟李冬宁余毅任浩程路超潘辉
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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