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Electrical impedance scanning-projection imaging method for early diagnosis of mammary gland mass

A technology of electrical impedance scanning and mammary gland mass, which is applied in the direction of diagnosis, diagnosis record/measurement, application, etc.

Inactive Publication Date: 2005-01-05
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing diagnostic techniques such as X-ray breast examination, B-ultrasound, infrared examination, etc., cannot be well used for early screening of breast tumors due to the limitations of their respective technical methods

Method used

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  • Electrical impedance scanning-projection imaging method for early diagnosis of mammary gland mass
  • Electrical impedance scanning-projection imaging method for early diagnosis of mammary gland mass
  • Electrical impedance scanning-projection imaging method for early diagnosis of mammary gland mass

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and the principles and implementations given by the inventor.

[0022] The invention adopts the disturbance principle of the uniform dielectric current field to establish an equivalent model of the mammary gland tissue current field to realize the impedance projection imaging of the mammary gland mass.

[0023] 1. The principle of uniform dielectric current field disturbance: such as figure 1 As shown, between two parallel conductor surfaces A and B is a field field with uniform distribution of impedance. Conductor surface A is grounded (potential is zero), and conductor surface B is connected to a voltage of V. Then, a field is established between A and B. Uniform current field, the current density distribution on the conductor surface B is also a constant value I 0 . When the impedance of a certain area in the field changes (such as figure 2 Shown when the...

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Abstract

An electric impedance scanning-projecting imaging method for early diagnosis of breast mass includes such steps as creating an equivalent model of the current field in breast tissue on the basis of electric field disturbing principle in uniform dielectric, applying the driving electric field to the electrode array on the surface of breast and upper extremities, detecting the current distubance caused by breast mass and the current distribution on electrode array, and expressing the 2D image of breast mass in grayscale mode.

Description

technical field [0001] The invention belongs to medical devices or instruments, and relates to an electrical impedance projection scanning imaging method that can be used for early diagnosis of mammary gland masses. Background technique [0002] Breast cancer is one of the common malignant tumors in women, and its incidence is increasing year by year. Early non-invasive diagnosis and identification of various breast diseases, especially malignant tumors, are extremely important to improve the survival rate and cure rate of patients. Existing diagnostic techniques such as X-ray breast examination, B-ultrasound, infrared examination, etc., cannot be well used for early screening of breast tumors due to the limitations of their respective technical methods. [0003] Abnormal masses (benign, malignant tumors, hyperplasia) in the breast, accompanied by physiological and pathological changes at the tissue and cell levels, have significant differences in electrical impedance from n...

Claims

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Application Information

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IPC IPC(8): A61B5/053
Inventor 董秀珍付峰史学涛刘锐岗尤富生季振宇
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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