A multi-frequency three-dimensional detection method for coronary plaque

Abstract

The invention discloses a multi-frequency three-dimensional coronary artery plaque detecting method.The multi-frequency three-dimensional coronary artery plaque detecting method comprises the steps that S1, two current emitting electrodes and two voltage detecting electrodes are arranged on an impedance catheter, and a same-current multi-frequency scanning method is adopted to measure the cross section of the inner cavity of a blood vessel to be detected; S2, voltage values of the required measurement positions in the blood vessel to be detected where the impedance catheter is located are respectively acquired at the same current and in a sweep frequency state; S3, the impedance catheter is driven to perform uniform motion, and voltage values of the impedance catheter in the motion process are acquired at the same current in multiple frequency period switching states; S4, the voltage values obtained in the multiple frequency period switching states, the cross sections of the positions of the blood vessel to be detected and conductance parameters corresponding to plaque loads are acquired; S5, a numerical calculation and numerical optimization combination method is adopted to calculate three-dimensional spatial distribution of the plaque parameters of the positions of the blood vessel to be detected, and the three-dimensional spatial distribution of the plaques in the blood vessel wall is further determined.The multi-frequency three-dimensional coronary artery plaque detecting method is more accurate than a traditional single-frequency method.

Description

technical field [0001] The invention belongs to the technical field of medical detection, in particular to a method for detecting the three-dimensional shape and plaque structure of coronary plaque. Background technique [0002] With the rapid development of biomedical engineering, how to improve the early prevention and treatment of human diseases, enhance the function of the body, and improve the level of health has always been a common concern of people; correspondingly, people have higher and higher requirements for medical detection methods. The method has been developed from manual detection combined with automated equipment for detection. In the prior art, a single form of imaging diagnostic equipment is used for detection. However, it cannot meet the needs of early diagnosis of diseases; a new detection system that combines form and function is the development of medicine. Needs, the development of functional examination and early diagnosis of diseases, and the devel...

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Problems solved by technology

[0002] With the rapid development of biomedical engineering, how to improve the early prevention and treatment of human diseases, enhance body functions, and improve health has always been a common concern of people; correspondingly, people have higher and higher requirements for medical detection methods. The method has been developed from manual detection combined with automated equipment for detection. In the existing technology, a single form of imaging diagnostic equipment is used for detection. However, it cannot meet the needs of early diagnosis of diseases; a new detection system that combines form and function is the development of medicine. Needs, the development of functional examination and early diagnosis of diseases, and the development of rehabilitation and prognosis evaluation of diseases are exactly the goals pursued by the development of modern medicine

[0003] At present, cardiovascular disease is the disease with the largest number of patients and the highest fatality rate. In the prior art, in the process of coronary artery stress detection, angiography, intravascular ultrasound and other methods are often used for detection, and the vascular In this way, the detection cost is high, and the accuracy of the detection results is low; other general-purpose four-electrode measurement methods can only measure the impedance of a single point, and form a two-dimensional blood vessel diameter by pulling the electrodes, which cannot be completely true. shape of blood vessels

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