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Coil positioning method and magnetic resonance imaging method for magnetic resonance equipment

A technology of magnetic resonance equipment and positioning method, which is applied in the direction of magnetic resonance measurement, etc.

Active Publication Date: 2019-06-11
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For coil positioning, the scheme US20030184292A1 and US6794872B2 using profile are susceptible to the influence of the scanned structure

Method used

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  • Coil positioning method and magnetic resonance imaging method for magnetic resonance equipment
  • Coil positioning method and magnetic resonance imaging method for magnetic resonance equipment
  • Coil positioning method and magnetic resonance imaging method for magnetic resonance equipment

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Experimental program
Comparison scheme
Effect test

Embodiment

[0060] like figure 1 As shown, the present invention provides a coil positioning method for magnetic resonance equipment, comprising the following steps:

[0061] S1. Acquire the current scan image of the patient equipped with coils in the magnetic resonance equipment, and set a set of markers on each coil, and the markers can be imaged on the magnetic resonance equipment; different coils are distinguished by markers ;

[0062] S2. Identify the coils corresponding to each group of markers in the current scan image, and acquire current position information of the coils corresponding to each group of markers, where the current position information is three-dimensional space position information.

[0063] Specifically, in order to realize spatial positioning, each group of markers in step S1 includes at least two markers. However, when the number of coils is small, or only for marking the coils, only one marker can also realize the identification of the coils.

[0064] In orde...

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PUM

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Abstract

The invention discloses a coil positioning method for magnetic resonance equipment. A certain number of markers that can be subjected to magnetic resonance imaging are disposed on a coil. Each group of markers is discriminated from other groups of markers according to one or combination of the number, the distance, the shapes, and the components of the group of markers so that multiple coils are recognized. The method comprises pre-scanning the markers to acquire the scanning images of the markers and the 3D spatial position information of the markers for obtaining the reference position of the coil; then further achieving positioning scanning on the coil after the position of the coil is changed in order to acquire the 3D spatial position information of the changed coil and the quantity of rotation and translation of the coil relative to the reference position.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance, in particular to a coil positioning method and a magnetic resonance imaging method for magnetic resonance equipment. Background technique [0002] Magnetic resonance tomography (Magnetic Resonance Tomography, MRT) is a biomagnetic nuclear spin imaging technology that has developed rapidly with the development of computer technology, electronic circuit technology, and superconductor technology. It uses a magnetic field and radio frequency pulses to cause nutation of the precessing hydrogen nuclei (ie H+) in human tissue to generate radio frequency signals, which are processed by a computer and imaged. When an object is placed in a magnetic field, it is irradiated with appropriate electromagnetic waves to make it resonate, and then the electromagnetic waves released by it are analyzed, and the position and type of the atomic nuclei that make up the object can be known, and the precise in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/36
CPCG01R33/36
Inventor 贺强
Owner SHANGHAI UNITED IMAGING HEALTHCARE