CN103637797B - Shown and localization method based on the myocardial blood sector of ST section injury vector compass - Google Patents
Shown and localization method based on the myocardial blood sector of ST section injury vector compass Download PDFInfo
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- CN103637797B CN103637797B CN201310723918.4A CN201310723918A CN103637797B CN 103637797 B CN103637797 B CN 103637797B CN 201310723918 A CN201310723918 A CN 201310723918A CN 103637797 B CN103637797 B CN 103637797B
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- 239000013598 vector Substances 0.000 title claims abstract description 39
- 230000006378 damage Effects 0.000 title claims abstract description 34
- 208000027418 Wounds and injury Diseases 0.000 title claims abstract description 27
- 208000014674 injury Diseases 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000002107 myocardial effect Effects 0.000 title claims abstract description 15
- 239000008280 blood Substances 0.000 title claims abstract description 14
- 210000004369 blood Anatomy 0.000 title claims abstract description 14
- 230000004807 localization Effects 0.000 title claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 210000005240 left ventricle Anatomy 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000012800 visualization Methods 0.000 claims 1
- 239000011159 matrix material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000000205 computational method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000037149 energy metabolism Effects 0.000 description 1
- 230000001951 hemoperfusion Effects 0.000 description 1
- 208000031225 myocardial ischemia Diseases 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 201000007094 prostatitis Diseases 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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Abstract
The invention discloses a kind of myocardial blood sector based on ST section injury vector compass shows and localization method.Ten electrodes of Ecg device are individually positioned in the fixed position of the person specially, collection 12 lead electrocardiosignal, analysis obtains the deviant of each lead, and show this deviant on compass, wherein chest leads V1 V6 are located at horizontal plane, and limb leads I III and augmented-lead aVR aVF are located at vertical plane；Method finally by least square solution inconsistent equation group calculates a space vector, which is projected in respectively on two plane compass, that is, obtain ST injury vector compass graphs.
Description
Technical field
The present invention relates to myocardial blood damages the technical field of method for expressing, more particularly to a kind of based on ST sections damage to
The myocardial blood sector of amount compass shows and localization method.
Background technology
Myocardial blood is damaged, and is referred to that the hemoperfusion of heart is reduced, is caused the oxygen supply of heart to reduce, and energy metabolism of myocardial is not
Normally, it is impossible to support a kind of pathological state of normal heart action.The M ＆ M of ischemic heart disease is located at the world
The major health concern in epiphytotics prostatitis, even more western developed country.Myocardial blood damages the strong of serious harm the elderly
Health, recently as growth in the living standard, myocardial blood damages the trend for assuming rejuvenation, some 20-30 year young men
Also this phenomenon is occurred in that.We have proposed the ST injury vectors based on ST field offsets, for myocardial blood sector display with
Positioning.
Content of the invention
The technical problem to be solved in the invention is：Propose a kind of side of the injury vector compass graph based on ST field offset values
Method, shows for myocardial blood sector and localization method.
The technical scheme is that：
A kind of myocardial blood sector based on ST section injury vector compass shows and localization method.The method includes that electrocardio is believed
Number acquisition, the realization of the calculating, the algorithm of ST injury vectors and compass graph of ST field offset amounts, wherein：
The acquisition of electrocardiosignal is completed by ECG acquisition device.The hardware components of equipment include:Receive from
The input of the signal of ECG Lead；The electrocardiosignal that electrode is gathered is converted into number using ADS1298 by processor, the processor
Word signal, data signal are transferred to computer through FPGA process；Computer, the work that ADS1298 is controlled by host computer procedure
Make mode, show measured original electro-cardiologic signals on computers.
The fixed position that ten electrodes are individually positioned in the person, gather 12 lead electrocardiosignal, signal-obtaining it
Afterwards which is pre-processed, within a complete electrocardiosignal cycle, the wave band of electrocardiosignal amplitude maximum is found, it is assumed that be
R ripples, then it is ST measurement points at each 108ms to take after R ripples, are equipotential reference point R wavefront 80ms at, and 2 points of potential value is distinguished
It is used for potential value V1 and reference potential value V0 for characterizing ST section measurement points, then side-play amount VST=V1-V0 of ST sections；12 lead
The ST field offsets value of connection thus obtain successively by method.
After obtaining the side-play amount of each ST-Segment, shown on compass graph, obtained ST compass graphs.Wherein chest leads
(V1-V6) horizontal plane is located at, and limb leads (I-III) and augmented-lead (aVR-aVF) are located on vertical plane.Propose ST compass
Purpose is to visualize the size and Orientation (raise or force down) of ST deviants, is just readily seen the inclined of ST sections so from figure
Shift one's love condition, this is also exactly located with the difference of standard cardioelectric figure.ST compass is made up of 5 concentric circles, and its radius is respectively 1,
2 ... 5 (units：Mm), 1mm=0.1mV.In theory, center of the center of ST compass for heart left ventricle.ST sections raise when,
Arrow is pointed to the positive direction (i.e. the direction of dotted line) of corresponding lead by the center of compass；When forcing down, then point to the anti-of corresponding lead
Direction.The length of arrow is determined by the size of ST deviants.The vector analysis of ST side-play amounts, generation are carried out with ST compass graphs
Table space vector measurement ST deviations, ST compass graphs can visualize the ST field offsets situation of standard twelve-lead electrocardiogram.
Value of the ST injury vectors in myocardial blood damage depends on how to obtain from the ST deviants of 12 leads
Obtain ST injury vectors, the method that least square solution inconsistent equation group is used in the present invention.In Matlab softwares, by most
Little square law solution inconsistent equation group calculates a total vector, i.e. ST injury vectors.The mould of each lead injury vector=total damage
Hinder the direction vector group of vectorial each lead, thus there is contradiction solution during the total injury vector of equation solution, the both sides of equation are simultaneously
The transposition of direction Vector Groups is taken advantage of on the right side, draws the least square solution of total injury vector.ST injury vectors are space vectors, by which
It is projected on horizontal and vertical two plane compass respectively.
Present invention advantage compared with prior art is：
(1) accuracy is high.The method has very strong theoretical foundation, is proved by substantial amounts of experimental data, and the method is
Practicable.
(2) readability directly perceived.Compared with conventional twelve-lead electrocardiogram, information that myocardial blood is damaged by the present invention is with one
Individual vector representation, and its display is on compass graph, is so easy to the size and Orientation for reading vector.
These and other features and advantage of the present invention will become easier to manage by of the invention below detailed description in detail
Solution.
Description of the drawings
Figure below depicts some exemplaries of the invention, and the embodiment of these descriptions is interpreted as this
The exemplary illustration of invention and be not the restriction of any mode.
Fig. 1 is the 12 lead location drawing；
Fig. 2 is the 12 lead electrocardiosignal tested out with Ecg device；
Computational methods of the Fig. 3 for ST deviants；
Fig. 4 is ST field offset value compass graphs；
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 depicts the particular location of 12 leads.The figure on the left side represents the vertical plane of two-dimensional sub-spaces, heart
Cardioelectric field is projected wherein.Therefore, the figure shows six of 12 leads ECG vertical leads (i.e. aVF, III, aVL, I, aVR, II (suitable
Hour hands)) six axles composition, as shown in the table：
| Lead | Angle |
| Ⅰ | 0° |
| Ⅱ | 60° |
| Ⅲ | 120° |
| aVL | -30° |
| aVR | -150° |
| aVF | 90° |
The figure on the right represents the horizontal plane of two-dimensional sub-spaces, therefore by leading with six horizontal Wilson in 12 leads ECG
Six axle compositions of connection (i.e. V6, V5, V4, V3, V2, V1 (clockwise)), as shown in the table：
| Lead | Angle |
| V1 | 115° |
| V2 | 90° |
| V3 | 65° |
| V4 | 40° |
| V5 | 15° |
| V6 | -10° |
Fig. 2 is the 12 lead electrocardiosignal figure of the patient tested out with Ecg device, in figure is successively from top to bottom
I-III, aVL-aVF, V1-V6 lead.
Computational methods of the Fig. 3 for ST deviants.Electrocardiosignal carries out smooth pretreatment to which after reading, complete at one
Cycle in, find out at the peak swing of each heartbeat, the amplitude of the R wave crests point in such as Fig. 3 is a heartbeat signal most
Large amplitude.After determining R wave crests point, it is ST measurement points at each 108ms to take after R ripples, is equipotential reference point R wavefront 80ms at,
2 points of potential value is respectively intended to potential value V1 and reference potential value V0 for characterizing ST sections, then deviant VST=V1- of ST sections
V0；The ST field offsets value of 12 lead thus obtain successively by method.
Fig. 4 is the compass graph of the ST deviants of a patient, shows 12 lead electrocardiogram each lead of the patient in figure
ST field offset values.The ST deviants of wherein 12 leads (ST sections when raising be on the occasion of be negative value when forcing down) as shown in the table：
| Lead | ST(mm) |
| Ⅰ | -0.6 |
| Ⅱ | 2.3 |
| Ⅲ | 3.4 |
| aVR | -1.2 |
| aVL | -1.9 |
| aVF | 3.4 |
| V1 | -1.8 |
| V2 | -3.6 |
| V3 | -2.9 |
| V4 | -1.4 |
| V5 | 0.6 |
| V6 | 1.4 |
Compass is made up of 5 concentric circles, 5 (units that its radius is respectively 1,2 ...：Mm), 1mm=0.1mV.In theory, sieve
Center of the center of disk for heart left ventricle.ST sections raise when, arrow is pointed to the positive direction of corresponding lead by the center of compass
(i.e. the direction of dotted line)；When forcing down, then point to the opposite direction of corresponding lead.The length of arrow is determined by the size of ST deviants
's.
The ST field offset values of 12 lead are projection of the total ST injury vectors in space in each lead.Known every axis of leads
Direction, after measuring the ST field offset values of 12 lead, by solve inconsistent equation group solve ST injury vectors.Concrete grammar is asked
Solution is as follows：
If matrix A is direction matrix, b is ST field offset value matrixs, and the ST injury vectors matrix on vertical plane is x, can be with
Composition equation below group：Ax=b.Matrix A, b, x are respectively：
B=(stIstIIstIIIstaVLstaVRstaVF)T
X=(xfyf)T
Wherein：θI、θII...θavFAngle for corresponding subscript lead；stI、stII...stavFST for corresponding subscript lead
Field offset value；xf、yfFor the coordinate value that ST injury vectors are projected on the vertical plane.
As above equation group is inconsistent equation group, by linear algebra knowledge, equation group ATAx=ATThe solution of b is exactly lance
The least square solution of shield equation group Ax=b.Therefore solving equations ATAx=ATThe value that b is obtained is ST injury vectors on the vertical plane
Coordinate；ST injury vector coordinate in the horizontal plane can be obtained in the same manner.The ST injury vectors that solution is obtained are illustrated respectively in water
On gentle vertical two plane compass, i.e. ST injury vectors compass graph.
Claims (4)
1. a kind of myocardial blood sector shows and localization method, it is characterized in that：Ten electrodes of Ecg device are individually positioned in people
The fixed position of body, gathers 12 lead electrocardiosignal, and analysis obtains the deviant of each lead, and this deviant is shown
On compass, wherein chest leads V1-V6 is located at horizontal plane, and limb leads I-III and augmented-lead aVR-aVF are located at vertical plane；Most
Method by least square solution inconsistent equation group calculates a space vector afterwards, and which is projected in two plane compass respectively
On, that is, obtain ST injury vector compass graphs；Including showing the deviant of each ST-Segment on compass graph, ST compass is obtained
Figure；Wherein chest leads V1-V6 is located at horizontal plane, and limb leads I-III and augmented-lead aVR-aVF are located on vertical plane；Propose ST
The purpose of compass is to visualize the size and Orientation of ST deviants, is just readily seen the skew feelings of ST sections so from figure
Condition；ST compass is made up of 5 concentric circles, and its radius is respectively 1,2 ... 5, and unit is mm, and 1mm represents 0.1mV, in theory, ST
Center of the center of compass for heart left ventricle；When ST sections are raised, arrow is pointed to the positive direction of corresponding lead by the center of compass,
That is the direction of dotted line, when forcing down, then points to the opposite direction of corresponding lead, and the length of arrow is determined by the size of ST deviants
's；The vector analysis of ST deviants is carried out with ST compass graphs, space vector measurement ST deviations are represented, ST compass graphs can be mark
The ST field offsets situation visualization of quasi- twelve-lead electrocardiogram.
2. method according to claim 1, is characterized in that：Method for expressing of the 12 lead in two dimensional compass, six water
Flat lead V6, V5, the angle of V4, V3, V2, V1 respectively are clockwise：-10°、15°、40°、65°、90°、115°；Six
Vertical lead aVF, III, aVL, I, aVR, II clockwise angle respectively are：90°、120°、-30°、0°、-150°、60°.
3. method according to claim 1, is characterized in that：Inclined including being calculated ST sections by the twelve-lead electrocardiogram for measuring
Shifting value；The fixed position that ten electrodes are individually positioned in the person, gathers 12 lead electrocardiosignal, right after signal-obtaining
Which is pre-processed, and within a complete electrocardiosignal cycle, finds the wave band of electrocardiosignal amplitude maximum, it is assumed that for R ripples,
It is ST measurement points at each 108ms so to take after R ripples, is equipotential reference point R wavefront 80ms at, and 2 points of potential value is respectively intended to
Potential value V1 and reference potential value V0 of ST sections is characterized, then side-play amount VST=V1-V0 of ST sections；The ST sections of 12 lead are inclined
Shifting value is obtained successively with reference to this method.
4. it is characterized in that:Also include the method for expressing of ST injury vector compass；According to ST field offset values, least square solution is used
The method of inconsistent equation group obtains total ST injury vectors, is then projected on horizontal and vertical two plane compass, i.e.,
Obtain ST injury vector compass graphs.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2804002C1 (en) * | 2022-07-05 | 2023-09-25 | Федеральное государственное бюджетное военное образовательное учреждение высшего образования "Военно-медицинская академия имени С.М. Кирова" Министерства обороны Российской Федерации (ВМедА) | Method of quantitative assessment of myocardial repolarization disorders in new coronavirus infection |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108618777A (en) * | 2017-03-20 | 2018-10-09 | 深圳市理邦精密仪器股份有限公司 | The processing method and processing device of ST segment signals, cardioelectric monitor equipment in electrocardiosignal |
| CN112386264B (en) * | 2020-11-13 | 2022-11-22 | 深圳市凯沃尔电子有限公司 | Method and device for carrying out graphical display on ST-section data in multi-lead data |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545628A2 (en) * | 1991-11-29 | 1993-06-09 | Cardiac Pacemakers, Inc. | Method and apparatus for comparing the ST segment of an electrocardiogram with a stored template |
| CN102085095A (en) * | 2009-12-07 | 2011-06-08 | 深圳市新元素医疗技术开发有限公司 | Method, system and electrocardioscanner for detecting ST segment in electrocardiogram |
| CN102138789A (en) * | 2011-01-24 | 2011-08-03 | 无锡微感科技有限公司 | Dynamic electrocardiogram and motion recording and analyzing system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6671549B2 (en) * | 2001-11-16 | 2003-12-30 | Medtronic, Inc. | Pacemaker utilizing QT dynamics to diagnose heart failure |
| US8229545B2 (en) * | 2005-09-15 | 2012-07-24 | St. Jude Medical, Atrial Fibrillation Division, Inc. | System and method for mapping complex fractionated electrogram information |
| US8290573B2 (en) * | 2008-08-21 | 2012-10-16 | Mr Holdings (Hk) Limited | Systems and methods for quantifying and providing indicia of ST-segment resolution in an ECG signal |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0545628A2 (en) * | 1991-11-29 | 1993-06-09 | Cardiac Pacemakers, Inc. | Method and apparatus for comparing the ST segment of an electrocardiogram with a stored template |
| CN102085095A (en) * | 2009-12-07 | 2011-06-08 | 深圳市新元素医疗技术开发有限公司 | Method, system and electrocardioscanner for detecting ST segment in electrocardiogram |
| CN102138789A (en) * | 2011-01-24 | 2011-08-03 | 无锡微感科技有限公司 | Dynamic electrocardiogram and motion recording and analyzing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2804002C1 (en) * | 2022-07-05 | 2023-09-25 | Федеральное государственное бюджетное военное образовательное учреждение высшего образования "Военно-медицинская академия имени С.М. Кирова" Министерства обороны Российской Федерации (ВМедА) | Method of quantitative assessment of myocardial repolarization disorders in new coronavirus infection |
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