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A three-dimensional source position estimation method of electromagnetism based on serf atomic magnetometer

A technique based on atomic magnetic strength and source location, applied in the field of biomedical signal analysis, can solve problems such as low spatial resolution, low positioning accuracy, and small application range, and achieve high spatial resolution, high positioning accuracy, and wide application range Effect

Active Publication Date: 2022-02-22
BEIHANG UNIV
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Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a method for estimating the three-dimensional source position of the central magnetic source based on the SERF atomic magnetometer, which is used to solve the low positioning accuracy of the three-dimensional source position estimation method for the central magnetic source in the prior art. , small application range, low spatial resolution, and low reliability

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  • A three-dimensional source position estimation method of electromagnetism based on serf atomic magnetometer
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  • A three-dimensional source position estimation method of electromagnetism based on serf atomic magnetometer

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[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Such as figure 1 As shown, the three-dimensional source position estimation method of the present invention includes the following steps:

[0028] In the first step, according to the subject’s medical structure image information, carry out the cardiomagnetic forward problem module, including first establishing a personalized heart-dual lungs-torso physical model for the subject, and then combining the heart-double lungs-torso The physical model coordinate system is registered with the SERF atomic magnetometer array coordinate system, and finally the cardiomagnetic guidance field matrix is ​​calculated based on the heart-lung-torso physical model and registration information. The magnetic guidance field matrix obtained by the magnetic forward problem module is used to solve the inverse problem equation in the magnetic reverse problem module.

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Abstract

The present invention relates to a method for estimating the position of a three-dimensional cardiomagnetic source based on a SERF atomic magnetometer. The processing module, the magnetic reverse problem module, finally realizes the estimation of the three-dimensional source position of the magnetic field. Compared with the method for estimating the position of the cardiomagnetic source based on the superconducting quantum interferometer, the method proposed by the invention has the advantages of high positioning accuracy, wide application range, high spatial resolution and high reliability.

Description

technical field [0001] The invention belongs to the field of biomedical signal analysis, and relates to a method for estimating the position of a three-dimensional source of cardiomagnetism based on a SERF (Spin Exchange Relaxation Free) atomic magnetometer. Background technique [0002] Magnetocardiography based on SERF atomic magnetometer is a new heart detection method, which has the characteristics of non-invasive, non-radiation, non-contact, working at room temperature, high sensitivity, and high time resolution. Studies have shown that magnetic heart imaging based on SERF atomic magnetometer is superior to other detection methods such as electrocardiography in the diagnosis of arrhythmia, myocardial ischemia, fetal heart and other diseases, and has high medical research and application value. [0003] The three-dimensional source location estimation method based on SERF atomic magnetometer is one of the applications of magnetic imaging technology based on SERF atomic m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/243
CPCA61B5/7203A61B5/7235
Inventor 马辛韩晓乐杨艳菲
Owner BEIHANG UNIV
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