CN102397071A - Method for measuring cardiovascular wall thickness - Google Patents
Method for measuring cardiovascular wall thickness Download PDFInfo
- Publication number
- CN102397071A CN102397071A CN2010102868078A CN201010286807A CN102397071A CN 102397071 A CN102397071 A CN 102397071A CN 2010102868078 A CN2010102868078 A CN 2010102868078A CN 201010286807 A CN201010286807 A CN 201010286807A CN 102397071 A CN102397071 A CN 102397071A
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- Prior art keywords
- measuring
- magnetic field
- cardiovascular
- blood vessel
- signal
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- 230000002526 effect on cardiovascular system Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 16
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 11
- 230000000747 cardiac effect Effects 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000009432 framing Methods 0.000 claims 1
- 238000013507 mapping Methods 0.000 abstract 1
- 230000008092 positive effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
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- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention relates to a method for measuring the thickness of a cardiovascular wall, which is characterized in that a three-dimensional mapping system of a cardiac catheter is characterized in that three magnetic field generators are utilized to generate three magnetic fields with different intensities and low intensities, the cardiac catheter with three magnetic inductors is inserted into a cardiovascular, when the cardiac catheter advances in the magnetic field, magnetic lines of force can be cut, micro current is generated to form an electric signal, a positioning electrode on the skin is referred, the electric signal is collected, filtered, amplified and digitally processed, the position and the spatial distribution of the catheter are compared with the positioning electrode, and the thickness and the spatial shape of the wall of the catheter can be obtained through computer calculation. In summary, the advantages and positive effects of the method for measuring the cardiovascular wall thickness of the invention are as follows: the subject is free from multi-body-position projection under X-ray, so that long-time exposure is caused, and the damage to the subject and an operator is avoided. The measuring cardiac catheter can also move along the intima of the blood vessel wall, a plurality of points are selected for recording, and when the number of the points is enough, the computer carries out three-dimensional reconstruction on the recorded data of the blood vessel wall to form a visualized blood vessel space shape.
Description
Technical field
The present invention relates to a kind of method of measuring the cardiovascular wall thickness, be used for the cardiovascular thickness measure and set up visual cardiovascular spatial form.
Background technology
The method of the measurement cardiovascular wall thickness of prior art mainly is in experimenter's cardiovascular, to inject suitable contrast agent under the X ray, utilizes the method for developing to measure; The X line shows that cardiac imaging is often overlapped; The direction of the position of cardiovascular catheters is indeterminate, needs many positions to throw photograph, causes operating time very long; Experimenter and patient's time of exposure are long, and certain harm is arranged.
Summary of the invention
The present invention seeks to the deficiency to the method for existing measurement cardiovascular wall thickness, a kind of method of measuring the cardiovascular wall thickness is provided, utilize the electromagnetic conversion principle, wire coil moves in magnetic field and can produce corresponding electric current.When the conduit that has a magnetic sensors moves in magnetic field, produce electric current, can confirm the relative position of catheter head and three magnetic field generators through electric current; Write down the graph of heart and the relevant information of this point simultaneously; Control lead moves in the cardiovascular of labelling, and the patient can choose a plurality of continuity points, the automatic record of computer; Work station can carry out three-dimensional reconstruction with these information, forms visual blood vessel spatial form.
The specific embodiment
The present invention further specifies the present invention with following specific embodiments.
The downfield generator is formed by 3, and orthogonal, energized is to produce 3 kinds of different magnetic field intensity magnetic field.
The cardiovascular catheters of pre-buried three the magnetic strength devices of head under blood vessel Digital Subtraction appearance (DSA), is delivered to the cardiovascular place that the experimenter will measure through the method that gets involved.
The reference location electrode paste is under the heart normotopia projection of left side, experimenter back, so that the three dimensions reference zero to be provided.
Cardiovascular catheters moves in blood vessel, and the field signal of collection converts the signal of telecommunication to, with gathering electrocardiosignal simultaneously through filtering, is transported in the computer after amplification and the digitized processing.Collect the magnetoelectricity signal and be input in the computer through filtering amplification and digitized, computer workstation will transmit signal through computing, obtain the thickness data of each position blood vessel wall, carry out three-dimensional reconstruction again and constitute the blood vessel spatial form.
Claims (4)
1. a method of measuring the cardiovascular wall thickness is characterized in that, this method includes magnetic field generator, and the magnetic field of three kinds of different magnetic field intensity can take place generator, when the cardiac catheter that has a magnetic field sensor moves in blood vessel, produces the signal of telecommunication; Doing the position reference electrode is magnetic sensors, and the signal of generation amplifies through signal through filtering again, and through the A/D conversion, digital signal is sent into Computer Processing.
2. a kind of method of measuring the cardiovascular wall thickness according to claim 1 is characterized in that, the head of cardiac catheter has magnetic field sensor and in measuring process, gathers electrocardiosignal voltage and magnetic field framing signal.
3. a kind of method of measuring the cardiovascular wall thickness according to claim 2 is characterized in that, localizing electrode is attached under the heart normotopia projection of left side, as the three-dimensional space position reference zero.
4. a kind of method of measuring the cardiovascular wall thickness according to claim 3; It is characterized in that; Collecting the magnetoelectricity signal is input in the computer through filtering amplification and digitized; Computer workstation will transmit signal through computing, obtain the thickness data of each position blood vessel wall, carry out three-dimensional reconstruction again and constitute the blood vessel spatial form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102868078A CN102397071A (en) | 2010-09-19 | 2010-09-19 | Method for measuring cardiovascular wall thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102868078A CN102397071A (en) | 2010-09-19 | 2010-09-19 | Method for measuring cardiovascular wall thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102397071A true CN102397071A (en) | 2012-04-04 |
Family
ID=45879983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102868078A Pending CN102397071A (en) | 2010-09-19 | 2010-09-19 | Method for measuring cardiovascular wall thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102397071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008568A (en) * | 2013-02-20 | 2014-08-27 | 株式会社东芝 | Apparatus and method for volume rendering of medical images |
-
2010
- 2010-09-19 CN CN2010102868078A patent/CN102397071A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008568A (en) * | 2013-02-20 | 2014-08-27 | 株式会社东芝 | Apparatus and method for volume rendering of medical images |
| CN104008568B (en) * | 2013-02-20 | 2020-07-31 | 佳能医疗系统株式会社 | Medical image processing apparatus and medical image processing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |