Cardiovascular detection system and method
11529084 · 2022-12-20
Inventors
Cpc classification
A61B5/318
HUMAN NECESSITIES
A61B5/0245
HUMAN NECESSITIES
International classification
A61B5/318
HUMAN NECESSITIES
A61B5/00
HUMAN NECESSITIES
Abstract
The detection and diagnosis of a variety of cardiovascular disorders and levels of heart condition, using a novel method and system, according to a comprehensive analysis of cardiac electrical signal via the frequency domain, time domain, spatial domain.
Claims
1. A method to diagnose heart health by placing a plurality of electrocardiogram (ECG) leads on a patient's body to collect a plurality of electrical signals, analyzing a quantum spectrum to determine a perfusion to a myocardium on a scale of one to five; namely, (1) normal amount of perfusion to said myocardium; (2) mild deficit perfusion to said myocardium; (3) moderate deficit perfusion to said myocardium; (4) severe perfusion deficit to said myocardium; (5) ischemia.
2. The method of claim 1 wherein a combination of an analysis of a frequency domain and a time domain can identify any one selected from a group consisting of the following disease states: coronary heart disease, myocardial infarction, ventricular hypertrophy, pulmonary heart disease, small vessel arrhythmia, supraventricular arrhythmia detection, congestive heart failure, and dilated cardiomyopathy.
3. The method of claim 1 wherein an analysis of a frequency domain can identify any one selected from a group consisting of the following disease states: poor conduction function, poor systemic blood circulation, change of blood dynamics, left ventricular dysfunction, high voltage in the left ventricle, prior injury to the myocardium, and arrhythmia.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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(24) Section 11B shows rear view diagram in which you can see the circumflex artery (LCX) and its branch vessels.
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DETAILED DESCRIPTION OF THE INVENTION
(32) A method for detecting, diagnosing and locating function and disorders of the cardiovascular system of the present invention provides a system, and gives a detection level of the human heart, in seven steps.
(33) The first step is the signal acquisition of cardiac electrical signals using ECG leads placed on the body's surface, including the position of the electrode of the right arm (RA), left arm (LA), right (RL), left (LL) and the six chest positions (V1, V2, V3, V4, V5, V6).
(34) TABLE-US-00001 Electrode name Electrode placement RA On the right arm, avoiding thick muscle. LA In the same location where RA was placed, but on the left arm. RL On the right leg, lateral calf muscle. LL In the same location where RL was placed, but on the left leg. V.sub.1 In the fourth intercostal space (between ribs 4 and 5) just to the right of the sternum (breastbone). V.sub.2 In the fourth intercostal space (between ribs 4 and 5) just to the left of the sternum. V.sub.3 Between leads V.sub.2 and V.sub.4. V.sub.4 In the fifth intercostal space (between ribs 5 and 6) in the mid-clavicular line. V.sub.5 Horizontally even with V.sub.4, in the left anterior axillary line. V.sub.6 Horizontally even with V.sub.4 and V.sub.5 in the midaxillary line.
(35) The second step is the collection of the heart's electrical signals by the A/D board, and afterwards amplified and digitized. The A/D board includes over 5000V of isolated voltage to ensure personal safety.
(36) The third step is the analysis of the collected cardiac electrical signals. First, the collected cardiac electrical signals are used to calculate time domain signal of the standard lead, a standard lead time domain signal including at least one of the 12 leads, 12-lead ECG is I lead, II lead, III lead, aVR lead, AVL lead, aVF lead, V1 lead, V2 lead, V3 lead, V4 lead, V5 lead, V6 lead. Each analysis leads online form and rhythm, gives Heart Rate, P Duration, PR Interval. QRS Duration, QT Interval, QTc Interval, P Axis, QRS Axis, T Axis, and P+, P, Q, R, S, J, ST20, ST40, ST60, ST80, T+, T. and the like. Second, the cardiac electrical signals acquired through the FFT are converted into a power spectrum signal, standard lead frequency domain signal comprises at least one a of 12-lead, 12-lead is I lead, II lead, III lead, aVR lead, AVL lead, aVF lead, V1 lead, V2 lead, V3 lead, V4 lead, V5 lead, V6 lead. At the same time, in order to calculate and analyze the heart, we assume that V4 lead, V5 lead, V6 lead of chest guide as the input signal, and the standard I lead, II lead, III lead of limb leads of as an output signal, we can obtain between the two signals (double leads of the phase shift, impulse response, cross correlation and coherence. At least one pair leads, such as between the between I lead and V4 lead or between II lead and V5 lead, or between III lead and V6 lead and comparison between many dual lead pairs. This defines the analysis of cardiac electrical of quantum spectrum analysis.
(37) The fourth step is the result of a large number of clinical trials, the selection of a series of diagnostic indicators of quantum spectrum of practical 12-lead cardiac electrical signals and combined into an overall detection and diagnosis for a variety of cardiovascular function and a variety of comprehensive cardiovascular disease detection and diagnosis. These indicators are P21 (second peak is greater than the first peak), P43 (fourth peak is greater than the third peak), P51 (fifth peak is greater than the first peak), P53 (fifth peak is greater than the third peak), L01 (the first peak is too low), L03 (third peak is too low), L0A (Average amplitude of first four peaks too low); HAP (Average amplitude of first four peaks too height), PHS (great deviations and fluctuations of phase shift), MPI (main peak of impulse response is inverted), WMP (wide multiple main peaks or a plurality in impulse response), SWP (bilateral distant sinusoidal waves on both sides of the main peak (wing sub-responses) of impulse response), USW (bilateral immediate responses on both sides close to main peak (immediate sub-response) of impulse response), MPL (the main peak of cross correlation is too low), MPH (the main peak of cross correlation is too high), PCI (first main peak of cross correlation is inverted), PCL1 (the first peak of coherence is too low), PCL2 (The peak of coherence is too low after 4 Hz.).
(38) After a number of clinical trials, the cardiovascular status from mild insufficient perfusion to myocardium ischemia, is divided into four levels, namely mild insufficient perfusion to myocardium; moderate insufficient perfusion to myocardium; significant insufficient perfusion to myocardium and presence of a compensated hyper dynamic ventricular response; and ischemia, different levels of detection and diagnosis of myocardial ischemia and other cardiovascular conditions. And evaluation correspond to: (1) Mild insufficient perfusion to myocardium—P43, P53; (2) insufficient perfusion to myocardium—P21, L0A; (3) insufficient perfusion to myocardium and presence of a compensated hyper dynamic ventricular response—P51; and (4) Myocardial Ischemia—P21 and P51 of the composite; P21, P51 and PHS, MPI compound; P21, P51, and the composite L0A; given mild to severe myocardial ischemia of varying degrees of holographic analysis. And ischemia of varying degrees of light to heavy detection and diagnosis.
(39) After a number of clinical trials, given the variety of cardiovascular dysfunction of detection and diagnostics: poor conduction function—MPI; left ventricular dysfunction—WMP; poor systemic blood circulation, change of blood dynamics—PHS; arrhythmia—USW; sometimes arrhythmia—PCL1, PCL2; high voltage in the left ventricle—MPH; previous injury to the myocardium—L01, L02 have now been correlated.
(40) After a number of clinical trials, all of these indicators can be combined in order to detect the degree of ischemia the cardiovascular status from mild myocardial insufficiency perfusion to moderate insufficiency to myocardium to myocardium ischemia. The range from mild myocardial insufficiency perfusion to moderate insufficiency to myocardium to myocardium ischemia is divided into five sections, an ischemia index 0-IV, degree of perfusion to myocardium 0-100%) namely, (1) First section—normal amount of perfusion to myocardium (ischemia index 0, not ischemia); (2) Second section—mild insufficient perfusion to myocardium (ischemia index I, degree of perfusion to myocardium 1-25%); (3) third section-moderate insufficient perfusion to myocardium (ischemia index II, degree of perfusion to myocardium 25-50%); (4) Fourth section-severe insufficient perfusion to myocardium (ischemia index III degree of perfusion to myocardium 50-75%); at this time, cardiac insufficiency starts making compensation mechanism, the heart has begun to use extra energy; (5) Fifth section—ischemia (ischemia index IV, degree of perfusion to myocardium 75-100%). The 5 section and diagnostic indicators are (1) the first section is normal perfusion to myocardium and every indicator normal in cardio quantum spectrum, or individual indicator appear “+” in the cardio quantum spectrum diagnostic indicators but (a) R21, R51 cannot have the “+,” (b) double lead of MPI, WMP, SWP, PHS, MPL, MPH, PCI's any one cannot have the “+.” (2) Second section—mild insufficient perfusion to myocardium—P43, P53 combinations. (3) third section—moderate insufficient perfusion to myocardium—P21, LOA and combinations thereof, for example, where the P21 in II, V5, there is a “+” appears, together with other leads in three a “+,” the sentence is: “moderate insufficient perfusion to myocardium;” where the P21 in II, V5 in both a “+,” the sentence is: “moderate insufficient perfusion to myocardium;” where the P21 in addition to other leads II, V5 outside in 6 The “+,” the sentence is: “moderate insufficient perfusion to myocardium.” Where LOA “+” The total is greater than 5, then ruled: “moderate insufficient perfusion to myocardium;” where the LOA “+” The total is more than 3, together with other three leads in a “+,” the sentence is: “moderate insufficient perfusion to myocardium;” where the LOA “+” The total is more than 3, P21 in addition to other leads II, V5 has three outside a “+,” the sentence is: “moderate insufficient perfusion to myocardium.” (4) Fourth section—severe insufficient perfusion to myocardium—P51, P21, LOA combination. (5) Fifth section—myocardial ischemia—P21, P51, PHS, MPI composite, for example, P21, P51 of II lead and V5 lead all “+” (abnormal), compared with myocardial ischemia; 12 lead P21, P51's 24 index-linked in 16 and 16 above is “+,” compared with myocardial ischemia; P21, P51 and PHS, MPI composite, for example, P21, P51 has 10 or more for the “+,” plus MPI, PHS two indicators have one for “+” can be judged as myocardial ischemia.
(41) P43, P53, P21, P51, L0A, MPI, PHS complex; gives an analysis of myocardial ischemia of varying degrees from lighter to heavier and the detection and diagnosis of ischemia of varying degrees. A series of diagnostic indicators of quantum spectrum in the detection and diagnosis of the history of myocardial ischemia, featuring of the present invention is a practical 12 lead cardiac electrical signals, combined into an overall detection and diagnosis, in a way, a system, an instrument a time of myocardial ischemia lighter to heavier degree, carried out detection and diagnosis. The system yields accurate and rapid direct non-invasive detection and diagnosis of myocardial ischemia, and myocardial ischemia distinguish severity. Because of this technology, it opens up “real-time” monitoring (especially before and after surgery), doctors “efficacy,” and “real-time” detection.
(42) The fifth step is performed using a combination of different indicators and the large number of clinical trials, given coronary heart disease, myocardial infarction, ventricular hypertrophy, pulmonary heart disease, small vessel disease, chronic blood disease, congenital heart disease, atrial fibrillation, ventricular arrhythmias, supraventricular arrhythmias, Congestive heart failure (CHF), dilated cardiomyopathy (DCM) rapid and accurate detection and diagnosis. Coronary heart disease—P21, P51, LOA, MPI, PHS, mutual combinations; MI—P21, P51, LO1, L02, MPI, PHS, SWP, MPL, mutual combinations; ventricular hypertrophy—HAP MPH combination with each other and; pulmonary heart disease—P21, P51 and MPH (V1, III, aVL lead anomalies) in combination with each other; small vessel disease—PHS and P43, P53 combined with each other; chronic blood disease—P21, P51, P43, P53 and MPL, PHS combined with each other; AF (Fibrillation)—ECG, P wave disappeared, a small f-wave frequency is 350-600 beats/min. Cardiac electrical quantum spectrum USW unusual, both in combination with each other; ventricular arrhythmia—ECG, ventricular premature contraction, ventricular tachycardia, ventricular fibrillation (VF) and ventricular flutter (VEL). Cardiac electrical quantum spectrum PL1, PL2 unusual, both in combination with each other; supraventricular arrhythmias—ECG, supraventricular tachycardia, atrial-ventricular node reentrant tachycardia, atrial-ventricular reentrant tachycardia, atrial-tachycardia. Cardiac electrical quantum spectrum PL1, PL2 unusual, both in combination with each other or both in combination with each other. Congestive heart failure (CHF)—P21, P51, WMP,USW and arrhythmia in ECG combination with each other dilated cardiomyopathy (DCM) P21, P51,LOA,LO1,LO2,HAP and QRS in ECG combination with each other.
(43) The sixth step is location diagnosis of insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction. The 12-lead into the frontal surfaces six leads (I lead, II lead, III lead, aVR lead, AVL lead, aVF lead) and horizontal surfaces 6 leads (V1 lead, V2 lead, V3 lead, V4 lead, lead V5, V6 lead) evaluation standard for each of lead (frontal surfaces and horizontal surfaces) to draw a histogram, leads the heart of their representatives in accordance with the arrangement in order, in order to facilitate observation leads adjacent evaluation standard, each histogram a representation leads to repeat. According to different combinations of leads, there are location diagnosis of 19 separate locations, and those 19 locations correspond to the combination of those leads in the following table:
(44) TABLE-US-00002 LOCATING Locations of insufficient perfusion to myocardium, STANDARDS myocardial ischemia or myocardial infarction 1. V1 + V2 + V3 + V4 Anteroseptal 2. V2 + V3 + V4 + V5 Anterior 3. II + aVF + V1 + V2 Inferior posterior 4. I + aVL + V3 + V4 + V5 + V6 Antero-lateral 5. I + aVL + V5 + V6 Lateral 6. I + aVR + aVL + V6 Lead I area 7. II + aVR + aVF Lead II area 8. II + aVL + aVF Lead III area 9. I + II + aVR + V5 Lead aVR area 10. I + III + aVL Lead aVL area 11. II + III + aVF Lead aVF area 12. V1 + V2 + V6 Lead V1 area 13. V1 + V2 + V3 Lead V2 area 14. V2 + V3 + V4 Lead V3 area 15. V3 + V4 + V5 Lead V4 area 16. V4 + V5 + V6 Lead V5 area 17. V1 + V5 + V6 Lead V6 area 18. V1 + V2 Sepal 19. II + aVF Inferior
(45) Referring to
(46) If the histogram which leads more than the midline, it means that this leads abnormal, different combinations of abnormal leads, showing different parts of the heart of insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction. The localization index chart localizes the insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction. When only one or two columns extending down to the abnormal zone, it has no clinical significance. Only when three or four columns extending down to the abnormal zone indicates ischemia secondary to coronary artery obstruction. The degree of severity corresponds to the depth of the columns extending down into the abnormal zone. The corresponding leads along which the columns extend down into the abnormal zone denote the affected area.
(47) Found in clinical practice that the evaluation criteria using the base value of the area integral was missing some important information. The present invention further combines anomaly evaluation criteria using the base value of the area integral with the P21, P51, and in this way obtains more accurate targeting criteria. And using a rotating 3D stereoscopic mode of the heart, one can visualize insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction position, which on the 3D model appears red, as shown. Physicians and patients can directly see the specific location of insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction.
(48) For example, the present invention uses, in addition to the base value of the evaluation criteria of the integration of the area, the individual or P21 and P51 combination, as evaluation criteria. If the leads on P21, P51, or P21 and P51 combination go past the 50% mark in the red (abnormal) area, it means that the leads are abnormal, different, and this shows different parts of the heart having insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction. When only one or two direct pairings move to the abnormal area experience stretching, there is no clinical significance. Only when the three or four pairings directly extend to the abnormal area, that it indicates the presence of myocardial ischemia, and coronary occlusion may also occur. The status of the 19 different leads correspond to the 19 different locations on the heart that may have myocardial ischemia or myocardial infarction.
(49) The present invention further identifies for three major coronary occlusion site.
(50) 1. The left anterior descending artery (LAD) artery and its branch vessels;
(51) 2. The right coronary artery (RCA) and its branch vessels; and,
(52) 3. The left circumflex (LCX) and its branch vessels.
(53) The location assessment for the arteries is as follows:
(54) 1. Insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction of the left anterior descending artery (LAD) and its branches vessels
(55) If the following combinations show abnormal, then insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction of the left anterior descending artery (LAD) and its branches vessels is detected:
(56) TABLE-US-00003 (1) V1 + V2 + V3 + V4 --- Anteroseptal (2) V2 + V3 + V4 + V5 --- Anterior (4) I + aVL + V3 + V4 + V5 + V6 --- Anterolateral (5) I + aVL + V5 + V6 --- Lateral (10) I + + aVL --- aVL area (12) V1 + V2 + V6 --- V1 area (13) V1 + V2 + V3 --- V2 area (14) V2 + V3 + V4 --- V3 area (15) V3 + V4 + V5 --- V4 area (16) V4 + V5 + V6 --- V5 area (17) V5 + V6 + V1 --- V6 area (18) V1 + V2 --- Septal
(57) 2. Insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction of the right anterior descending artery (RCA) and its branches vessels
(58) If the following combinations show abnormal, then insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction of the right anterior descending artery (RCA) and its branches vessels is detected:
(59) TABLE-US-00004 (1) V1 + V2 + V3 + V4 --- Anteroseptal (2) V2 + V3 + V4 + V5 --- Anterior (4) I + aVL + V3 + V4 + V5 + V6 --- Anterolateral (5) I + aVL + V5 + V6 --- Lateral (10) I + + aVL --- aVL area (12) V1 + V2 + V6 --- V1 area (13) V1 + V2 + V3 --- V2 area (14) V2 + V3 + V4 --- V3 area
(60) 3. Insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction of the left circumflex artery branch vessels (LCX) and its branches vessels
(61) If the following combination show abnormal, then insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction of the left circumflex artery branch vessels (LCX) and its branches vessels is detected:
(62) (5) I+aVR+aVL+V6---area
(63) The seventh step is a quantum spectrum analysis of cardiac electrical information, comprehensive ECG time domain, spatial domain VCG, and reference cardiac risk factors.
(64) It also presents the concept of a human heart level; from normal human heart, sub-health, to unhealthy patient, critically-ill patient, and so forth, divided into 10 level. This allows the improved detection and diagnosis of heart disease and conditions.
(65) The heart health state is divided into 10 levels (see
(66) 1-3 grade, Normal, healthy person, with green.
(67) 4-6 grade, Borderline, sub-health group, with yellow. Among them, 4 sub-healthy people close to healthy, 6 sub-health people close to being a patient.
(68) 7-8 level, Abnormal, has entered cardiovascular disease, orange display, wherein, 7 light, 8 heavier.
(69) 9-10 level, myocardial infarction, sudden death or cardiac risks. Shown in red.
(70) Detailed Explanation:
(71) (1) Levels 1-3: healthy people.
(72) Level 1, completely normal healthy people. Heart quantum spectrum diagnosis is normal, ECG diagnosis is normal, without any risk factors;
(73) Level 2, although they are still normal, healthy people, but in the heart of the quantum spectrum of eight major indicators (P21, P43, P53, P51, L01, L03, L0A, HAP), there is a non-important indicator of individual appearance “+.”
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(75) Level 3, although they are still normal, healthy people, but is already close to the sub-health level, such as may occur, mild insufficient perfusion to myocardium. High voltage in the left ventricle, previous myocardial injury or scarring in addition to the indications in Level 2.
(76) (2) Levels 4-6: borderline health.
(77) Level 4 of the sub-healthy people are close to healthy people but detection of insufficient perfusion to myocardium or detection of conduction abnormality or poor systematic blood circulation and change in blood dynamics are detected.
(78) Level 5 is a standard of sub-health people, when there is insufficient perfusion to myocardium and presence of compensated hyperdynamic ventricular response.
(79) Level 6 sub-healthy people are close to being admitted as a patient. Detection occurs when abnormal double lead index (MPI, WMP, PHS, MPL, MPH, PCI) has two “+.”
(80) (3) Level 7-8: abnormal and the heart has entered the early stages of cardiovascular disease.
(81) Level 1-7 detects CAD; ventricular hypertrophy; pulmonary heart disease; congenital heart disease; small vessel disease; chronic blood disease; atrial fibrillation; ventricular arrhythmia; supraventricular arrhythmias, congestive heart failure (CHF), dilated cardiomyopathy (DCM).
(82) Level 8 unhealthy people, detects the Levels 1-7, described above, each concurrent and with risk factors such as hypertension, high cholesterol, diabetes, smoking, family history of heart disease, typical angina, and atypical angina in combination with each other. Level 8 also includes detection of CAD and diabetes; CAD plus Ischemia, coupled with high blood pressure, high cholesterol, typical angina; CAD plus ventricular hypertrophy; CAD plus pulmonary heart disease; CAD plus congenital heart disease, etc., are the 8 level.
(83) (4) Levels 9-10: critically ill patients.
(84) Level 9 detects CAD and myocardial infarction merger.
(85) Level 10 detects CAD merger myocardial infarction and atrial fibrillation. The patient is at risk of sudden cardiac death.
(86) Detection, diagnosis and localization of the perfusion of the cardiovascular system and method according to the present invention sampling time takes approximately 90 seconds. The total procedural time does not exceed 10 minutes, and afterwards, the patient receives a variety of detection and diagnosis with the results as described above in a simple and intuitive format.
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(111) TABLE-US-00005 (1) V1 + V2 + V3 + V4 --- Anteroseptal (2) V2 + V3 + V4 + V5 --- Anterior (4) I + aVL + V3 + V4 + V5 + V6 --- Anterolateral (5) I + aVL + V5 + V6 --- idewalls (Lateral) (10) I + + aVL --- aVL lead district (12) V1 + V2 + V6 --- V1 lead zone (13) V1 + V2 + V3 --- V2 lead zone (14) V2 + V3 + V4 --- V3 lead zone (15) V3 + V4 + V5 --- V4 lead zone (16) V4 + V5 + V6 --- V5 lead area (17) V5 + V6 + V1 --- V6 lead zone (18) V1 + V2 --- Septal
(112) 69 is a right coronary artery (RCA) and branch vessel. If there is an abnormality in one of the following combination or group, it indicates the right coronary artery (RCA) and it branch vessels indicates insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction.
(113) TABLE-US-00006 (3) + aVF + V1 + V2 --- Inferior Posterior (7)
+ aVR + aVF ---
lead zone (8)
+ aVL + aVF ---
lead zone (9)
+
+ aVR + V5 --- aVR lead zone (11)
+
+ aVF --- aVF lead zone (19)
+ aVF --- Inferior
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(115) (5) I+aVR+aVL+V6---lead zone
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(122) Similarly, the second way to 9-way signal LA, LF, V1, V2, v3, V4, V5, V6 also after three amplified output signal for LA-1, LF-1, V1-1, V2-1, V3-1, V4-1, V5-1, V6-1.
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(125) The following instructions from the principle of the quantum power spectrum of a 12-lead, phase shift, impulse response, cross correlation, coherence. Use of software available on the host computer expansion slot 9-channel digital signal LA, LF, V1, V2, v3, V4, V5, V6, According to the conventional 12-lead standard definition can be deduced conventional 12-lead
(126) =LA−RA
(127) =LF−RA
(128) =LF−LA
(129) aVR=RA−(RA+LA+LF)/3
(130) aVL=LA−(RA+LA+LF)/3
(131) aVF=LF−(RA+LA+LF)/3
(132) V1=V1−(RA+LA+LF)/3
(133) V2=V2−(RA+LA+LF)/3
(134) V3=V3−(RA+LA+LF)/3
(135) V4=V4−(RA+LA+LF)/3
(136) V5=V5−(RA+LA+LF)/3
(137) V6=V6−(RA+LA+LF)/3
(138) With the standard 12-lead data, the obtained Fourier transform S [i] (f) and the complex conjugated Fourier transform S [i] (f)*, where i takes 1-12, representative lead number, f (frequency) is S [i] is a function of frequency. Thus, quantum power spectrum P [i] can be obtained by the following formula:
P[i]=S[i](f)⋅S[i](f)*
(139) The phase shift θxy (f) between the double lead for
(140) Phase shift
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(142) Where |H.sub.xy(f) is amplitude ratio of transfer function, θ.sub.xy (f) is the phase shift. G.sub.xy(f) is the cross power spectrum of two leads of Cardiac electrical signals, G.sub.xx(f) is the auto power spectrum of the lead x. The vertical lines represent modulo. The Impulse response between the double lead for
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(144) From the calculating expressions of impulse response, we know the impulse response responds to unit excitation at point x. The response ration excited at points x1 and x2 is represented by expression:
X.sub.2(t)=∫.sub.−∞IH.sub.x1x2(t)x.sub.1(t−τ)dτ
(145) The cross-correlation between the double lead for
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(147) is applied to the analysis of electrocardio signals, the meaning of each symbol is as follows: Φ.sub.xy τ represents the cross correlation function of electrocardio, t is time, τ is time lag (or is called time delay), f.sub.y(t) and f.sub.x(t) are two leads of Cardiac electrical signal. The subscripts x and y express two different leads of Cardiac electrical signals, 2T (i.e. from −T to T) is the record time of electrocardiogram. In general, we take 2T as 3.
(148) The coherence function between two leads of Cardiac electrical signals of x (t) and y (t) is
γ.sub.xy.sup.2(f)=|G.sub.xy(f)|/G.sub.xx(f)G.sub.yy(f)
(149) Because the amplitude of cross power spectrum possesses an important relation expression, i.e. inequality of cross spectrum:
|G.sub.xy(f)|.sup.2≤G.sub.xx(f)G.sub.yy(f)
(150) hence
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(152) Therefore the value of coherence function is between 0 and 1.
(153) Quantum power spectrum computing of the present invention is directed to a continuous 12-lead Cardiac electrical signals synchronization conducted Cardiac electrical signals, this period of time comprises a duration in excess of one second, and preferably a duration of generally about 90 seconds.
(154) Additionally, found that in clinical practice that the evaluation criteria using the base value of the area integral of incomplete was missing some important information. The present invention further combines anomaly evaluation criteria using the base value of the area integral with the P21, P51, and in this way obtains more accurate targeting criteria. And using a rotating 3D stereoscopic view of the heart, one can visualize insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction position, which on the 3D model appears red, as shown. Physicians and patients can directly see the specific location of insufficient perfusion to myocardium, myocardial ischemia or myocardial infarction.
(155) Additionally found that the present invention can diagnosis congestive heart failure (CHF), dilated cardiomyopathy (DCM), CAD, MI, ventricular hypertrophy, AF, and other diseases paracytic, a total of 12 kinds of diseases. Coronary heart disease—P21, P51, LOA, MPI, PHS, mutual combinations. For example P21, P51 of II lead and V5 leads all “+”, with PHS is “+” can be sentenced for CAD; P21, P51 of II and V5 leads has 3 and 3 above is “+”, plus in LOA, MPI, PSH, SWP 4 indicators for 1 a “+” can be sentenced for CAD; P21, P51 has 10 or more for the “+”, with MPI, WMP, SWP, USW, PHS 5 indicators there are two for the “+” can be judged as CAD; MI-. P21, P51, LO1, L02, MPI, PHS, SWP, MPL, mutual combinations, ventricular hypertrophy—HAP MPH combination with each other and; for example, two, and two more the “+” in HAP, plus in MPH as “+”, can be judged as ventricular hypertrophy; HAP appeared five and five more as “+”, can be judged as ventricular hypertrophy; HAP appear two and two more for the “+”, with ECG diagnosis ventricular hypertrophy, can be judged as ventricular hypertrophy; MPH as “+”, together with the ECG diagnosis of ventricular hypertrophy, can be judged as ventricular hypertrophy; pulmonary heart disease—P21, P51 and MPH (V1, III, aVL lead anomalies) in combination with each other; small vessel disease—PHS and P43, P53 combined with each other; chronic blood disease—P21, P51, P43, P53 and MPL, PHS combined with each other; AF (Fibrillation)—ECG, P wave disappeared, a small f-wave frequency is 350-600 beats/min Cardiac electrical quantum spectrum USW unusual, both in combination with each other; ventricular arrhythmia-. ECG, ventricular premature contraction, ventricular tachycardia, ventricular fibrillation (VF) and ventricular flutter (VEL). Cardiac electrical quantum spectrum PL1, PL2 unusual, both in combination with each other; supraventricular arrhythmias, ECG, supraventricular tachycardia, atrial-ventricular node reentrant tachycardia, atrial-ventricular reentrant tachycardia, atrial-tachycardia. Cardiac electrical quantum spectrum PL1, PL2 unusual, both in combination with each other. Congestive heart failure (CHF)—P21, P51, WMP, USW and arrhythmia in ECG combination with each other, Dilated cardiomyopathy (DCM))—P21, P51, LOA, LO1, LO2, HAP and QRS in ECG combination with each other
(156) The invention unites the heart's electrical information, the time domain, the frequency domain, and spatial domain under one unified method, diagnostic system, and instrument. It greatly improves the detection and diagnosis of cardiovascular function and its sensitivity and specificity. (Cardiac electrical information in the time domain of the present invention, the frequency domain, spatial domain fused in a unified method, a diagnostic system, an instrument. Enable the analysis of human cardiac electrical information reaches the holographic level of analysis, greatly improving cardiovascular function Detection and diagnosis of sensitivity and specificity).
(157) It will be understood that various modifications can be made to the various embodiments of the present invention herein disclosed without departing from the spirit and scope thereof. For example, various devices are contemplated as well as various types of construction materials. Also, various modifications may be made in the configuration of the parts and their interaction. Therefore, the above description should not be construed as limiting the invention, but merely as an exemplification of preferred embodiments thereof. Those of skill in the art will envision other modifications within the scope and spirit of the present invention as defined by the claims appended hereto.