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Computing device, magnetic resonance device, power consumption calculation method, and article of manufacture

一种计算装置、消耗功率的技术，应用在测量装置、测量磁变量、医药科学等方向，能够解决梯度线圈功率增加等问题

Active Publication Date: 2016-09-07
GE MEDICAL SYST GLOBAL TECH CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Along with this, the power applied to the gradient coils has increased dramatically, and the heat generation of the gradient coils has become a problem

Method used

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  • Computing device, magnetic resonance device, power consumption calculation method, and article of manufacture
  • Computing device, magnetic resonance device, power consumption calculation method, and article of manufacture
  • Computing device, magnetic resonance device, power consumption calculation method, and article of manufacture

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Experimental program
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Embodiment Construction

[0034] Hereinafter, modes for implementing the invention will be described, but the invention is not limited to the following modes.

[0035] figure 1 It is a schematic diagram of a magnetic resonance apparatus according to an embodiment of the present invention.

[0036] A magnetic resonance apparatus (hereinafter referred to as “MR apparatus”. MR: Magnetic Resonance) 100 includes a magnet 2 , a stage 3 , a receiving coil 4 , and the like.

[0037] The magnet 2 has a bore 21 for accommodating the object 12 to be detected. In addition, the magnet 2 includes a superconducting coil 22 , gradient coils 23 x , 23 y , and 23 z , and an RF coil 24 . The superconducting coil 22 applies a static magnetic field. The gradient coil 23x applies a gradient magnetic field in the x-axis direction, the gradient coil 23y applies a gradient magnetic field in the y-axis direction, and the gradient coil 23z applies a gradient magnetic field in the z-axis direction. RF coil 24 sends RF pulses....

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Abstract

The present invention relates to a computing device, a magnetic resonance device, a power consumption computing method, and a program. Point data representing a point at which the slope of the gradient pulse changes and point data representing a point at which the intensity of the gradient magnetic field of the gradient pulse becomes zero are acquired. The pulse width of the gradient pulse is calculated from the point data, and the resistance of the gradient coil is calculated based on the pulse width. In addition, the gradient magnetic field strength of the gradient pulse is calculated from the point data, and the coil current of the gradient coil is calculated based on the gradient magnetic field strength. Then, the power consumption of the gradient coil is calculated using the resistance of the gradient coil and the coil current. Thus, the power consumption of the gradient coils can be calculated in a short time.

Description

technical field [0001] The present invention relates to a calculation device for calculating power consumption of gradient coils, a magnetic resonance apparatus to which the calculation device is applied, a power consumption calculation method for calculating power consumption of gradient coils, and a program for calculating power consumption of gradient coils. Background technique [0002] In recent years, a high-speed photography method such as an echo planar imaging (EPI: Echo Planer Imaging) method has begun to be used. Along with this, the power applied to the gradient coils has increased dramatically, and the heat generation of the gradient coils has become a problem. Therefore, an MRI apparatus is disclosed that can operate continuously within a range in which the temperature of the gradient coil does not reach the upper limit temperature (see Patent Document 1). [0003] patent documents [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2000-023...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/055
CPCG01R33/385
Inventor 浅羽佑介
Owner GE MEDICAL SYST GLOBAL TECH CO LLC