Limbs positioning device and limbs receiver for increasing signal to noise ratio

Abstract

The invention relates to the field of medical imaging equipment and discloses a limbs positioning device for increasing the signal to noise ratio. The limbs positioning device comprises two surface parts capable of forming a closed surface, the surface parts are connected through connectors, and each part is in the shape of a fitting surface. The invention further discloses a limbs receiver for magnetic resonance imaging and increasing the signal to noise ratio. The limbs receiver comprises a shell and the limbs positioning device arranged in the shell, and coils are arranged on the outer surface of the limbs positioning device. The limbs positioning device and the limbs receiver facilitate mechanical design, the curve contour of the limbs positioning device is conformal with human knees so as to facilitate positioning of the human knees, the distance between a coil receiving unit and a scanning part is shortened, and the signal to noise ratio is increased beneficially while patient comfort is improved.

Description

technical field [0001] The invention belongs to the field of medical imaging equipment, and in particular relates to a limb positioning device with improved signal-to-noise ratio and a limb receiving device with improved signal-to-noise ratio for magnetic resonance imaging. Background technique [0002] In MRI detection, in order to improve the signal-to-noise ratio, there are usually dedicated coils for specific parts in the prior art, for example, head coils are used to scan the head, shoulder coils are used to scan the shoulders, limb coils are used to scan the limbs, and so on. In order to improve the signal-to-noise ratio of the limb coil and facilitate the positioning of the patient's knee, the aperture of the limb coil in the prior art is made conformal to the knee of the human body, so as to reduce the distance between the coil receiving unit and the scanning part and improve the SNR. But because it is comparatively complicated to copy the morphological structure of...

AI Technical Summary

Problems solved by technology

However, due to the complexity of copying the shape and structure of knees and legs, it is not easy to implement mechanical design.

Moreover, if the limb coil is completely conformal to the knee of the human body, the inner wall of the coil is close to the patient, so that the space of the coil is limited, which reduces the comfort of the patient, and it is not easy to check the patient with knee edema, reducing the Patient coverage is limited, and the scope of use is limited

[0003] The present invention overcomes the disadvantages of the existing extremities coils such as difficult implementation in mechanical structure, reduced patient coverage, poor patient comfort, etc., and proposes a limb positioning device with improved signal-to-noise ratio and patient comfort, which is easy to Mechanical design, convenient for the positioning of the knee, and shorten the distance between the coil receiving unit and the scanning part, improving the signal-to-noise ratio

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