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Eyeball radio-frequency coil device for magnetic resonance imaging system

A magnetic resonance imaging, radio frequency coil technology, applied in applications, eye testing equipment, medical science and other directions, can solve the problems of difficult fixation, easy damage, poor image quality, etc., to optimize the shape, reduce motion artifacts, improve The effect of the signal-to-noise ratio

Active Publication Date: 2011-04-27
SHANGHAI CHENGUANG MEDICAL TECH
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Problems solved by technology

[0008] In order to solve the defects of poor image quality, difficult fixation and easy damage in existing eye imaging radio frequency coil devices, the purpose of the present invention is to provide a special eyeball radio frequency coil device with adjustable height, easy fixation and long service life , the distance between the coil and the diagnostic part of the human body can be adjusted, and the receiving unit of the coil is as close as possible to the patient's eye, and it is naturally closed, which significantly improves the signal-to-noise ratio and imaging quality, and effectively avoids the false movement caused by movement. Images with high diagnostic value can be obtained in a short period of time, which improves the efficiency and accuracy of doctors' image reading

Method used

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  • Eyeball radio-frequency coil device for magnetic resonance imaging system
  • Eyeball radio-frequency coil device for magnetic resonance imaging system
  • Eyeball radio-frequency coil device for magnetic resonance imaging system

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Embodiment Construction

[0026] The present invention will be further described below in combination with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, the eyeball RF coil device of the present invention is mainly composed of two main parts: an ABS base supporting the head and neck of the human body, and an eye RF coil packaged with a resonant circuit for collecting signals. The base is made of ABS sheet material, which is light and handy, and easy to move. The base is equipped with a cavity 7 that corresponds to the contours of the human head and neck and is designed according to the contours of the back of the human body and neck and shoulders. The side bottom of the neck of the base is Extend toward the back to form a human body neck bottom surface support plate 9, and its end is slope-shaped, and extends to be level with sick bed, can make the patient rest on it comfortably. The lower part of the base adopts the curved surface shape 8 that can naturally f...

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Abstract

The invention discloses an eyeball radio-frequency coil device for a magnetic resonance imaging system. The device comprises a base for supporting human head and neck and suitable for the radian of a sickbed, and eyeball radio-frequency coils detachably connected with the base and encapsulated with a resonance circuit of 4-channel array combination; and the eye part of each side is provided with 2 independent unit receiving coils. By adopting an arc shell made of acrylonitrile butadiene styrene (ABS) plastic, distance adjustment between the coils and the human diagnosis part is realized, signal-to-noise ratio and imaging quality are remarkably improved, fake shadows generated by motion are effectively avoided, images with high diagnosis value can be acquired in short time, and reading efficiency and accuracy of doctors are improved.

Description

technical field [0001] The invention relates to a radio frequency coil device used in a human organ magnetic resonance imaging system, in particular to an eyeball radio frequency coil device. Background technique [0002] Magnetic resonance imaging (MRI) is an application of nuclear magnetic resonance (NMR) in medicine. The main magnetic system of the magnetic resonance imaging system produces a uniform strong magnetic field (called the main magnetic field of the MRI system—B 0 ). The hydrogen nuclei in the human body are in B 0 Spin polarization occurs under the field. The magnetically polarized hydrogen nucleus spins generate a magnetic moment i in the human body. in the absence of B 0 In the case of excitation by an external magnetic field other than , the magnetic moment is in a steady state, and the direction and the main magnetic field B 0 Orientation is coaxial and yields no useful information. [0003] When there is an applied uniform radio frequency (RF) magn...

Claims

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Application Information

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IPC IPC(8): A61B5/055A61B3/10
Inventor 方磊
Owner SHANGHAI CHENGUANG MEDICAL TECH
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