MRI coil

A technology of body coil and magnetic resonance, applied in the direction of magnetic resonance measurement, etc., to achieve the effect of reducing SAR value, simple structure and low cost

Active Publication Date: 2018-02-27
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a magnetic resonance body coil, which can effectively solve the problem of high local SAR of the human body, and prevent the heat generated by the capacitor from being transferred to the inside of the body coil, so that the patient's health during the magnetic resonance examination can be improved. Body temperature can be maintained at normal level

Method used

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Embodiment Construction

[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] In order to solve the problems existing in the prior art, the magnetic resonance body coil provided by the present invention includes a cylindrical body, a plurality of coil units and capacitors, the plurality of coil units are fixed on the cylindrical body, and the plurality of capacitors are set The coil unit further includes a hollow body for guiding a cooling medium, the hollow body is located between the cylinder and the coil unit, and extends along the circumference of the cylinder. During magnetic resonance imaging scanning, the cooling medium flowing in the hollow body can take away the heat generated by the capacitor, preventing the heat generated by the capacitor from being transmitted to the inside of t...

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Abstract

The present invention provides a magnetic resonance body coil, which includes a cylindrical body, a plurality of coil units and capacitors, the plurality of coil units are fixed on the cylindrical body, the plurality of capacitors are arranged on the coil units, and It is characterized in that it also includes a hollow body for guiding a cooling medium, the hollow body is located between the cylinder body and the coil unit, and extends along the circumference of the cylinder body. Using the body coil of the present invention for magnetic resonance imaging scanning, the cooling medium flowing in the hollow body can take away the heat generated by the capacitor, preventing the heat generated by the capacitor from being transferred to the inside of the body coil and making the patient feel uncomfortable; at the same time, it can effectively solve the local SAR value deviation. high question.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance imaging, in particular to a magnetic resonance body coil. Background technique [0002] Magnetic resonance imaging devices are widely used in clinical medical examination and treatment. The magnetic resonance imaging devices in the prior art mainly include a frame, a hospital bed, a gradient coil, a radio frequency coil, and a control and image reconstruction system. When imaging parts of the torso, a body coil is used to transmit and / or receive radio frequency pulses. Such as figure 1 As shown, the existing body coil is mainly composed of a cylinder 1, a plurality of coil units 2 and a capacitor 3, and is mainly used to generate a radio frequency field. [0003] During an MRI scan, the human body absorbs part of the radio frequency power, which is measured by a Specific Absorption Rate (SAR). If the transmitting power of the radio frequency coil is high, after scanning for a period ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/34G01R33/38
Inventor 秦军军罗威
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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