Monitoring system, method and device

Abstract

A monitoring system, method and device, comprising an ultrasonic imaging module (10), an electrocardiogram monitoring module (11), a data processing module (12) and an output module (13), wherein the ultrasonic imaging module is used to obtain an ultrasonic cardiogram of the heart, the data processing module is used to receive the ultrasonic cardiogram and obtain mechanical movement marks of the atria and ventricles according to the ultrasonic cardiogram, and the data processing module outputs the mechanical movement marks of the atria and ventricles and the electrocardiogram information in a comparable manner to the output module in real time for presentation. Since ultrasonic monitoring is used to reflect the mechanical activity of the heart, and the mechanical activity of the heart is marked, and compared and analyzed with the electrocardiogram data obtained by electrocardiogram monitoring in a comparable manner, it is judged that the electro-mechanical activity mismatch occurs, and the judgment process is more direct, intuitive and timely, reducing the dependence on the professional skills and experience of doctors, making the judgment of the periodic movement of the heart easier and more accurate.

Description

Technical Field

[0001] The invention relates to a medical device, and in particular to a monitoring system for monitoring the periodic motion of a heart. Background Art

[0002] Usually, ECG monitoring equipment is used to monitor the periodic movement of the heart, and patients are diagnosed based on the ECG, such as arrhythmia, cardiac capture, and electromechanical separation. However, the following problems are found in clinical practice:

[0003] ECG monitoring has inaccuracies in monitoring arrhythmias. For example, when a patient has atrial fibrillation, there may be interference from noise, resistance, and changes in body position, which further increases the inaccuracy of ECG monitoring.

[0004] In some special cases, such as external pacing, it is inaccurate to judge the cardiac capture by relying solely on the electrocardiogram. Because the voltage of the electrocardiogram signal of external pacing varies, the QRS wave with a lower voltage is easily missed; when the voltage is too high, there is a problem of over-sensing. For example, when a tall T wave appears, it may even cause the heart rate to double; in addition, some pacing waves are very close to the subsequent waves, and the subsequent waves may be misinterpreted as the QRS waves generated by cardiac capture (such as Figure 1 As shown in the figure, the black mark is the pacing signal, and the following waveform is not the QRS wave generated by capture; however, because the pacing wave is very close to this wave, it is easy to be misread as the QRS wave group generated by capture, which leads to the misjudgment of heart capture. Therefore, it is impossible to accurately judge the capture of the heart by relying on ECG.

[0005] In addition, the clinical diagnosis of electrical mechanical dissociation (EMD) is mainly based on a comprehensive judgment based on the patient's physical signs (such as the absence of heart sounds, pulse, respiration and blood pressure, etc.) and the electrocardiogram (such as sinus, regular, P-QRS-T sequence at each time period, normal voltage electrocardiogram, etc.). The patient's cardiac electrical activity can be directly displayed by the electrocardiogram, while the patient's heart's mechanical activity is indirectly displayed through the patient's physical signs. For example, the pulse, respiration and blood pressure can be monitored in real time by the patient monitor, while the heart sounds are judged by the doctor's auscultation. Judgments based on these indirect methods of reflecting the mechanical activity of the heart may cause doctors to delay the diagnosis and treatment of patients' EMD. Summary of the invention

[0006] According to the first aspect, an embodiment provides a monitoring system, including an ultrasound imaging module, an electrocardiogram monitoring module, a data processing module and an output module;

[0007] The ultrasonic imaging module comprises:

[0008] A probe, used for transmitting ultrasonic waves to a body tissue to be tested, and receiving ultrasonic echoes with tissue information reflected from the body tissue to be tested, wherein the body tissue to be tested includes a heart; and

[0009] An image processing unit, whose input end is connected to the probe signal, receives the ultrasonic echo output by the probe, processes the echo, and generates an ultrasonic image, wherein the ultrasonic image includes an ultrasonic cardiogram reflecting heart information;

[0010] The ECG monitoring module is used to monitor ECG signals and generate ECG information that changes over time;

[0011] The input end of the data processing module is respectively connected to the output end signals of the image processing unit and the electrocardiogram monitoring module, and is used to receive the echocardiogram and obtain the mechanical movement identifiers of the atria and ventricles based on the echocardiogram. The data processing module outputs the mechanical movement identifiers of the atria and ventricles and the electrocardiogram information to the output module for presentation.

[0012] According to the second aspect, an embodiment provides a method for monitoring periodic cardiac motion, comprising:

[0013] The receiving probe collects the ultrasonic echoes with heart information reflected from the heart of the tested body;

[0014] Generate an echocardiogram based on ultrasound echoes;

[0015] Mechanical motion markers of the atria and ventricles were obtained by echocardiography;

[0016] Receive the ECG information that changes over time output by the ECG monitoring module;

[0017] Displays mechanical motion markers and ECG information of the atria and ventricles.

[0018] According to a third aspect, an embodiment provides a cardiac periodic motion monitoring device, comprising:

[0019] A unit for receiving ultrasonic echoes with heart information reflected from the heart of the subject collected by the probe;

[0020] A unit for receiving ECG information output by an ECG monitoring module that changes with time;

[0021] An image processing unit, configured to receive ultrasonic echoes with heart information reflected from the heart of the tested body and collected by the probe, and to generate an echocardiogram based on the ultrasonic echoes;

[0022] The data processing module is used to obtain the mechanical movement markers of the atria and ventricles according to the echocardiogram, and output the mechanical movement markers of the atria and ventricles and the electrocardiogram information to the output module for presentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 For electrocardiogram with external pacing;

[0024] Figure 2 A schematic diagram of the structure of an embodiment;

[0025] Figure 3 A flowchart of monitoring the periodic motion of the heart in one embodiment;

[0026] Figure 4 A flowchart of calculating cardiac parameters in an embodiment;

[0027] Figure 5 A schematic diagram of the systolic phase and three-channel diagram of the atrium and ventricle in one embodiment;

[0028] Figure 6 This is the first schematic diagram for comparing the contraction period of the atria and ventricles with the electrocardiogram;

[0029] Figure 7 A second schematic diagram for comparing the contraction period of the atria and ventricles with the electrocardiogram;

[0030] Figure 8 A third schematic diagram for comparing the contraction period of the atria and ventricles with the electrocardiogram;

[0031] Fig. 9 A fourth schematic diagram for comparing the contraction period of the atria and ventricles with the electrocardiogram;

[0032] Fig.10 A schematic diagram for comparing and analyzing the contraction period and paced wave of the atrium and ventricle;

[0033] Fig.11 It is a schematic diagram showing the atrial and ventricular contraction periods using upright bars;

[0034] Fig.12 It is a schematic diagram using pie charts to represent the mechanical motion of the atria and ventricles;

[0035] Fig.13 A schematic diagram showing the mechanical movement of the heart using a cardiac image. DETAILED DESCRIPTION

[0036] The concept of the present invention is to use ultrasonic monitoring to reflect the mechanical activity of the heart, use ECG monitoring to obtain ECG signals, and compare and analyze the mechanical activity of the heart with the ECG signals to reflect the electro-mechanical activity of the heart in an intuitive manner.

[0037] The present invention will be further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0038] Please refer to Figure 2 The monitoring system includes an ultrasonic imaging module 10, an electrocardiogram monitoring module 11, a data processing module 12 and an output module 13. The ultrasonic imaging module 10 includes a probe 101, an image processing unit 102 and a transmitting circuit 103. The transmitting circuit 103 is signal-connected to the probe 101, the input end of the image processing unit 102 is signal-connected to the probe 101, the input end of the data processing module 12 is signal-connected to the output end of the image processing unit 102 and the electrocardiogram monitoring module 11 respectively, and the output end of the data processing module 12 is signal-connected to the output module 13. The signal connection can be a direct connection, or a connection after processing through intermediate components, or a wireless communication connection, or a wired connection.

[0039] The probe 101 is used to scan the surface of the tissue of the tested body, transmit ultrasonic waves to the tissue of the tested body, and receive ultrasonic echoes with tissue information reflected from the tissue of the tested body. The probe 10 can use a suitable probe according to actual requirements. In a specific embodiment, the probe 101 is coupled to the transmitting circuit 103 through the switching switch 104 on the one hand, and transmits ultrasonic waves to the tissue of the tested body under the control of the transmitting circuit 103, and is coupled to the image processing unit 102 on the other hand, and outputs the received ultrasonic echoes to the image processing unit 102. In this embodiment, the probe 10 is used to transmit ultrasonic waves to the heart part, and receive ultrasonic echoes with heart tissue information reflected from the heart tissue. In this embodiment, the probe can continuously monitor the heart. In order to facilitate the continuous monitoring of the probe, the probe can be a structure and / or shape suitable for long-term adhesion to the surface of the tested body.

[0040] The transmitting circuit 103 is used to generate a transmitting logic sequence as needed, output the transmitting logic sequence to the probe 101, and the probe 101 converts the transmitting logic sequence into ultrasonic waves. In this embodiment, the transmitting circuit 103 also controls the probe to continuously scan the tissue of the tested body within a set time period. In other embodiments, in order to prevent the probe from continuously transmitting ultrasonic waves and causing a temperature rise, the transmitting circuit 103 can also control the probe to pause for a period of time after completing continuous monitoring for a set time period. The scanning interval and scanning cycle can be set by the doctor, for example, a scan is started every five minutes, and each scan is performed for one minute.

[0041] The image processing unit 102 is used to process the ultrasound echo, such as beam synthesis, demodulation, image processing, etc., and finally generate an ultrasound image according to the required ultrasound image mode. In this embodiment, the ultrasound image can be various modes of cardiogram. The image processing unit 102 can be an integrated circuit or a circuit composed of discrete components. In some embodiments, the image processing unit 102 can be a processing chip.

[0042] The ECG monitoring module 11 generally includes a plurality of leads and processing circuits. The leads are used to contact the surface of the heart appendages of the tested body to sense the electrical signals conducted by the heart chambers. The processing circuits are used to process the electrical signals, such as amplification, filtering, analog-to-digital conversion, etc., and then output the processed ECG information to the data processing module 12.

[0043] The data processing module 12 is used to process various information, and can also send control signals to various components of the monitoring system to control the various components. It can also be used to store information in the storage module 14 and / or read or use information from the storage module 14, and can also be used to output information to the output module 13 for presentation. In this embodiment, the input end of the data processing module 13 is respectively connected to the output end signals of the image processing unit 102 and the ECG monitoring module 11, and is used to receive the ultrasound cardiogram output by the image processing unit 102 and the ECG information output by the ECG monitoring module 11, detect the mechanical movement of the atria and ventricles according to the ultrasound cardiogram, and mark the period when the mechanical movement occurs to obtain the mechanical movement mark of the atria and ventricles, and then output the mechanical movement mark of the atria and ventricles and the ECG information to the output module 13 for display or presentation for observation by the inspector or doctor.

[0044] In some embodiments of the present invention, the output of the mechanical motion identification of the atria and ventricles and the ECG information to the output module 13 for display or presentation can be real-time, for example, to monitor the monitored object in real time. In other embodiments, the output of the mechanical motion identification of the atria and ventricles and the ECG information to the output module 13 for display or presentation can be non-real-time, for example, the mechanical motion identification of the atria and ventricles and the ECG information can be first stored in the monitoring system, and then output to the output module 13 when needed, so that the doctor can perform subsequent, offline or non-site observation and analysis of the monitored object.

[0045] In some embodiments, the mechanical motion markers of the atria and ventricles and the ECG information can be output to the output module 13 in a comparable manner for display or presentation. Comparison includes visual comparison, auditory comparison, and a combination of the two. The visual method can include images and light signals, and the auditory method includes sound. For example, the mechanical motion markers of the atria and ventricles and the ECG information are processed into a visualized image or a flashing light signal of a set color, or the mechanical motion markers of the atria and ventricles and the ECG information are processed into a sound signal. Since the ECG information of the echocardiogram has temporal consistency in the acquisition and processing process, the mechanical motion markers of the atria and ventricles and each ECG wave in the ECG information can be compared in time. The data processing module 12 can be an integrated circuit or a circuit composed of discrete components. In some embodiments, the data processing module 12 can be a microprocessor. In this embodiment, the data processing module 12 and the image processing unit 102 can be independent modules, or they can be integrated into one module, or part of the functions of the data processing module 12 can be transformed into the image processing unit 102, or vice versa.

[0046] The output module 13 is used to present the signal output by the data processing module 12. The output module 13 can be a display, a light emitting module or a speaker. When the output module 13 is a display, the data processing module 12 processes the mechanical motion identifier into a visual identifier, processes the electrocardiogram information into an electrocardiogram, and then outputs the mechanical motion identifier of the atrium and ventricle and the electrocardiogram information to the display in real time along the same time axis for display. When the output module 13 is a light emitting module or a speaker, the data processing module 12 processes the mechanical motion identifier into a light signal or a sound signal correspondingly, and processes the electrocardiogram information into a light signal or a sound signal correspondingly, and then outputs the mechanical motion identifier of the atrium and ventricle and the electrocardiogram information to the light emitting module or the speaker in real time along the same time axis. The light emitting module emits light according to the light signal, and the speaker plays sound according to the sound signal. The mechanical motion and electrocardiogram information of the atrium and ventricle can be distinguished by the color of light and different sounds.

[0047] When monitoring the periodic motion of the heart based on the above monitoring system, one monitoring method is as follows: Figure 3 As shown, the following steps are included:

[0048] Step 20, receiving the ultrasonic echo with heart information reflected from the heart of the tested body collected by the probe. In this embodiment, the ultrasonic probe can be attached to the patient's body surface for a long time to perform intermittent continuous monitoring, that is, continuous ultrasonic emission and echo reception are performed for a period of time at intervals.

[0049] Step 21, receiving the ECG information that changes with time output by the ECG monitoring module.

[0050] Step 22, generating an echocardiogram based on the ultrasonic echo; in this embodiment, the echocardiogram is an M-type echocardiogram, in other embodiments, the echocardiogram may also be a two-dimensional echocardiogram, a contrast echocardiogram, etc. In some embodiments, the echocardiogram is optional, for example, the echocardiogram defaults to a certain type of echocardiogram, and the user is also allowed to modify the type of echocardiogram, and the type selected by the user is generated after the user selects it.

[0051] Step 23, calculate the real-time cardiac parameters according to the echocardiogram, the cardiac parameters include the end-diastolic time point of atrial, the end-diastolic time point of ventricular, the end-systolic time point of atrial, the end-systolic time point of ventricular, the length of atrial diastolic period, the length of ventricular diastolic period, the length of atrial systolic period, the length of ventricular systolic period, the end-diastolic inner diameter of atrial, the end-diastolic inner diameter of ventricular, the end-systolic inner diameter of atrial, and the end-systolic inner diameter of ventricular. Before calculating the cardiac parameters, the mode of the echocardiogram can be identified first, and the features in the echocardiogram can be extracted according to the mode, such as the posterior wall of the left ventricle, the ventricular septum, the wall of the left atrium, etc. The cardiac parameters are calculated according to the information of these features.

[0052] Taking the left atrium M-mode echocardiogram (also referred to as M-map) as an example, a specific calculation process is as follows Figure 4 As shown, the following steps are included:

[0053] Step 231, spatially smoothing the M-mode echocardiogram of the left atrium to eliminate noise interference.

[0054] Step 232, edge extraction is performed on the smoothed image to identify the left atrium. Since the edge position motion trajectory of the aorta cavity and the left atrium cavity is obtained after edge extraction, please refer to Figure 5 Therefore, the left atrial cavity can be identified based on the relative positions of the aortic cavity and the left atrial cavity, such as Figure 5 As shown, the cavity area at the lower ordinate is the left atrial cavity 31 , and the cavity area at the upper ordinate is the aortic cavity 32 .

[0055] Step 233, obtaining the inner diameter of the left atrial cavity according to the motion trajectory of the left atrial cavity edge position, where the inner diameter of the left atrial cavity is the longitudinal distance between the upper and lower edges of the left atrial cavity.

[0056] Step 234, compare the inner diameter of the left atrium at each time point to obtain the characteristic time point of the atrial motion cycle. The characteristic time point of the atrial motion cycle includes the end-diastolic time point and the end-systolic time point. The end-diastolic time point is the point where the inner diameter of the atrial cavity is the largest. Figure 5 The mark T1\T4\T7, the time point of the end of atrial contraction is the smallest atrial diameter, see Figure 5 Markings T2\T5\T8.

[0057] Step 235, obtain cardiac parameters according to the characteristic time points of the atrial motion cycle. Figure 5 As shown in the figure, the cardiac parameters of the atrium can be obtained according to the characteristic time points of the atrial motion cycle. Figure 5 In the figure, T1\T4\T7 time points are the end-diastolic time points, T2\T5\T8 are the end-systolic time points, the time length from the end-diastolic time point to the immediately following end-systolic time point is the atrial systolic duration, the time length from the end-systolic time point to the immediately following end-diastolic time point is the atrial diastolic duration, the atrial inner diameter at the end-diastolic time point is the atrial end-diastolic inner diameter, and the atrial inner diameter at the end-systolic time point is the atrial end-systolic inner diameter.

[0058] Similarly, the M map of the left ventricle is spatially smoothed to eliminate noise interference; edge extraction is performed to obtain the edge position motion trajectory of the left ventricular cavity 33, see Figure 5 ; Obtain the inner diameter size, that is, the longitudinal distance between the upper and lower edges of the left ventricular cavity; obtain the characteristic time points of the ventricular motion cycle, which include the end-diastolic time point and the end-systolic time point. The end-diastolic time point is the inflection point where the ventricular inner diameter is the largest and begins to decrease. Figure 5 The marks T2\T5\T8 in the figure are the time points at the end of ventricular contraction, when the ventricular internal diameter is the smallest. Figure 5 Similarly, the cardiac parameters of the ventricle can also be obtained according to the characteristic time points of the ventricular motion cycle. Figure 5 In the figure, T2\T5\T8 time points are the end-diastolic time points, T3\T6\T9 are the end-systolic time points, the time length from the end-diastolic time point to the immediately following end-systolic time point is the ventricular systolic time length, the time length from the end-systolic time point to the immediately following end-diastolic time point is the ventricular diastolic time length, the ventricular inner diameter at the end-diastolic time point is the ventricular end-diastolic inner diameter, and the ventricular inner diameter at the end-systolic time point is the ventricular end-systolic inner diameter.

[0059] Step 24, obtain the real-time contraction period of the atrium and ventricle according to the cardiac parameters of the heart. The contraction period of the atrium can be obtained according to the end time point of atrial diastole, the end time point of atrial contraction and the length of atrial contraction period, and the contraction period of the ventricle can be obtained according to the end time point of ventricular diastole, the end time point of ventricular contraction and the length of ventricular contraction period.

[0060] Step 25, generating mechanical motion markers corresponding to the contraction periods of the atria and ventricles. In this embodiment, the mechanical motion markers corresponding to the contraction periods of the atria and ventricles are visual markers. For example, a bar graph is used to represent the contraction periods of the atria and ventricles respectively, and the length of the bar graph represents the duration of the contraction period of the chamber corresponding to the bar graph. In terms of presentation, it can be presented in a form similar to the following "three-channel graph". Figure 5As shown in , horizontal bar graphs are used to represent the contraction period of the atrium and ventricle. The bar graph 34 filled with oblique lines in the first channel represents the atrial contraction process; the bar graph 35 filled with dots in the third channel represents the ventricular contraction period. In this embodiment, the column length direction of the bar graph 34 and the bar graph 35 is parallel to the time axis T. The two end edges of the column length of the bar graph 34 correspond to the end-diastolic time points T1\T4\T7 and the end-systolic time points T2\T5\T8, respectively, and the column length represents the duration of the atrial contraction period. The two end edges of the column length of the bar graph 35 correspond to the end-diastolic time points T2\T5\T8 and the end-systolic time points T3\T6\T9, respectively, and the column length represents the duration of the ventricular contraction period. The bar graphs representing the atrial contraction period and the ventricular contraction period have a spacing in the direction perpendicular to the time axis, forming a second graph located between the first graph and the third graph. The connecting line located in the second graph area connects the end-diastolic time points of the two bar graphs. The connecting line represents sequential conduction and also represents the atrioventricular interval of the atrium and ventricle contraction. The steeper the slope of the connecting line, the shorter the time from the atrium to the ventricle, and the faster the heart beats. The three-graph method in this embodiment includes both sequential conduction information and atrioventricular contraction time information.

[0061] Step 26, output the contraction period marks of the atria and ventricles and the ECG information to the output module in real time in a comparable manner. Figure 6-9 As shown, the data processing module outputs the contraction period marks of the atria and ventricles and the electrocardiogram to the display in real time along the same time axis for display.

[0062] Step 27, the atrium and ventricle systolic period marks and the electrocardiogram are jointly analyzed. The analysis process can be completed by a doctor, who can judge whether the atrium and ventricle electrical signals (P wave and QRS wave, respectively) detected in the electrocardiogram are followed by the mechanical activity of the corresponding heart chambers through the intuitive display image, making the doctor's judgment method more direct and intuitive, avoiding misjudgment due to lack of experience.

[0063] This analysis process can also be completed automatically by the monitoring system, and the data processing module determines whether the P wave and QRS wave in the ECG information are consistent with the systolic markers of their corresponding chambers in rhythm and frequency. That is, when the P wave appears, the systolic marker of the atrium should appear at the same time, and when the QRS wave appears, the systolic marker of the ventricle should appear at the same time. When it is determined that the rhythm and frequency of the two are inconsistent, an alarm message is output. The automatic analysis method eliminates the need for doctors to make judgments, and the judgment results can be obtained directly and alarms can be issued based on the results. For example, when there is a mismatch between electrical and mechanical activities, the monitor can give a corresponding alarm prompt. For example, when the electrocardiogram detects an electrical signal and the echocardiogram does not detect any mechanical activity, such as Figure 7As shown in the figure, the heart rate signal is detected in the dotted box of the electrocardiogram, but no mechanical beat is detected in the echocardiogram, indicating that the electrocardiogram signal fails to induce effective heart beat, that is, conduction block is considered to have occurred; for example, when the electrocardiogram detects the heart rate but the echocardiogram cannot detect mechanical activity, such as Figure 8 As shown in the figure, the heart rate signal is continuously detected in the dotted box of the electrocardiogram, while the echocardiogram shows that the heart has stopped beating, which means that mechanical arrest has occurred; for example, when the heart rate detected by the electrocardiogram is faster than the mechanical activity frequency detected by the echocardiogram, such as Fig. 9 As shown in the figure, the electrocardiogram detected 5 electrical signals, while the echocardiogram only detected 4 mechanical signals. The mechanical signals and electrical signals are performed at their own frequencies, which means that frequency separation has occurred. In the event of arrhythmia or special circumstances, this function can also be used to more intuitively determine the results of the electrocardiogram diagnosis, thereby ensuring the accuracy and rationality of the diagnosis. In the case of external pacing, this function can also be used to more accurately determine the cardiac capture situation, such as Fig.10 As shown, three graphs are used to confirm that each pacing wave is followed by a valid QRS complex, so it can be determined that the heart has been captured.

[0064] In order to show the changes of the inner diameter of the heart chamber in more detail, the real-time inner diameter of the heart chamber can also be displayed in the three-channel attachment.

[0065] This embodiment uses ultrasonic monitoring to directly reflect the mechanical activity of the heart, which is more direct, intuitive and timely than the solution of indirectly reflecting the mechanical activity of the heart through the patient's physical signs (such as no heart sound, pulse, breathing and blood pressure, etc.). The mechanical activity of the heart is marked and compared and analyzed with the electrocardiogram data obtained by electrocardiogram monitoring in a comparable manner to determine the situation of mismatch between electrical and mechanical activities, making the judgment process more intuitive and reducing the dependence on the doctor's professional skills and experience, thereby making the judgment of the periodic movement of the heart easier and more accurate.

[0066] In this embodiment, the mechanical motion marker is a heart chamber contraction marker, including an atrial contraction marker and a ventricular contraction marker. In other embodiments, the mechanical motion marker may also be a heart chamber diastole marker, including an atrial diastole marker and a ventricular diastole marker.

[0067] In other embodiments, the display method can also be used to intuitively show the mechanical movement of the atrium and ventricle and the conduction information between the two. Fig.11As shown, upright bar graphs are used to represent the contraction period of the atria and ventricles. The two bar graphs are displayed in the same column, and the bar length direction is perpendicular to the time axis. The bar length of the bar graph represents the contraction period duration of the chamber corresponding to the bar graph. In the figure, bar graph A represents the atrial contraction period mark, and bar graph V represents the ventricular contraction period mark. The distance AV between the two bar graphs in the direction perpendicular to the time axis is related to the time of atrioventricular conduction. The larger the distance, the slower the atrioventricular conduction, and the larger the distance, the faster the atrioventricular conduction. For another example Fig.12 As shown, a pie chart is used to represent the mechanical movement of the atria and ventricles. The pie chart is refreshed around the center of the circle as time goes by. Each refresh represents a cardiac cycle; the atrial contraction information, atrioventricular interval information, and ventricular contraction information are refreshed in sequence; in the figure, sector A represents the atrial contraction period mark, sector V represents the ventricular contraction period mark, the size of the sector angle represents the length of time, and AV represents atrioventricular conduction. For another example Fig.13 As shown, a heart contraction diagram is used to represent the mechanical movement of the atria and ventricles. The diagram of heart contraction and relaxation can be restored based on the heart diameter information obtained from echocardiography. This presentation method can show the mechanical movement of the heart to users more intuitively.

[0068] In addition, the sound information sensed by ultrasound can also be used to reflect the information related to the contraction and relaxation of the atrioventricular ventricle and its interval, such as using "beep" to reflect the sound of the mechanical movement of the heart, and using "beep" to reflect the electrocardiogram signal of the heart. Using sound to display allows medical staff to more intuitively identify the changes in the patient's heart function through sound. In addition, one of the two can be displayed using sound and the other using images.

[0069] Those skilled in the art will appreciate that all or part of the steps of the various methods in the above embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which may include: a read-only memory, a random access memory, a disk or an optical disk, etc.

[0070] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not used to limit the present invention. For those skilled in the art, according to the concept of the present invention, the above specific implementation methods can be changed.

Claims

1. A heart monitoring method, characterized in that include: Sending ultrasonic waves to the heart of the tested body; receiving ultrasound echoes returned from the heart of the subject; generating an echocardiogram based on the ultrasound echoes; Obtaining ECG information of the tested body; Detecting the contraction period of the atrium according to the echocardiogram and generating a mechanical motion marker characterizing the contraction period of the atrium, detecting the contraction period of the ventricle according to the echocardiogram and generating a mechanical motion marker characterizing the contraction period of the ventricle; Presenting a mechanical motion marker representing the contraction period of the atrium and a mechanical motion marker representing the contraction period of the ventricle and the electrocardiogram information; The presenting of the mechanical motion marker representing the contraction period of the atrium and the mechanical motion marker representing the contraction period of the ventricle and the electrocardiogram information includes: The mechanical motion marker representing the contraction period of the atrium and the mechanical motion marker representing the contraction period of the ventricle and the electrocardiogram information are displayed along the same time axis.

2. The method according to claim 1, characterized in that: The mechanical motion marker is a bar graph, wherein the length of the column representing the atrium contraction period corresponds to the duration of the atrium contraction period; the length of the column representing the atrium diastole period corresponds to the duration of the atrium diastole period; the length of the column representing the ventricular contraction period corresponds to the duration of the ventricular contraction period; and the length of the column representing the ventricular diastole period corresponds to the duration of the ventricular diastole period.

3. The method according to claim 2, characterized in that: The column length direction of the bar graph is parallel to the time axis, and the two end side lines of the column representing the atrial contraction period correspond to the end time point of atrial diastole and the end time point of atrial contraction respectively; the two end side lines of the column representing the atrial diastole correspond to the end time point of atrial contraction and the end time point of atrial diastole respectively; the two end side lines of the column representing the ventricular contraction period correspond to the end time point of ventricular diastole and the end time point of ventricular contraction respectively; the two end side lines of the column representing the ventricular diastole correspond to the end time point of ventricular contraction and the end time point of ventricular diastole respectively.

4. The method according to claim 3, characterized in that: There is a distance between the column representing the contraction period and / or the relaxation period of the atrium and the column representing the contraction period and / or the relaxation period of the ventricle in a direction perpendicular to the time axis; When the mechanical motion is identified as a cylinder representing the atrium's contraction period and a cylinder representing the ventricle's contraction period, the edge line of the corresponding end-diastolic time point of the cylinder representing the atrium's contraction period is connected with the edge line of the corresponding end-diastolic time point of the cylinder representing the ventricle's contraction period by a line segment.

5. The method according to claim 2, characterized in that: The column length direction of the bar graph is perpendicular to the time axis, the column representing the contraction and / or relaxation period of the atrium and the column representing the contraction and / or relaxation period of the ventricle are displayed in the same column, and the spacing between the column representing the contraction and / or diastole period of the atrium and the column representing the contraction and / or diastole period of the ventricle in the direction perpendicular to the time axis is related to the corresponding mechanical motion conduction time between the atrium and the ventricle.

6. The method according to claim 1, characterized in that: The mechanical motion marker is a pie chart, wherein one sector of the pie chart represents the contraction period and / or relaxation period of the atrium, and the angle of the sector representing the atrium corresponds to the duration of the contraction period and / or relaxation period of the atrium; another sector of the pie chart represents the contraction period and / or relaxation period of the ventricle, and the angle of the sector representing the ventricle corresponds to the duration of the contraction period and / or relaxation period of the ventricle; or, The mechanical movements of the atria and ventricles are shown as a schematic diagram of the heart.

7. The method according to claim 1, characterized in that: The mechanical movement identifier is a sound identifier; The presenting of the mechanical motion marker and the electrocardiogram information includes: outputting, through a speaker, a sound representing the contraction and / or relaxation period of the atrium, a sound representing the contraction and / or relaxation period of the ventricle, and a sound representing the electrocardiogram information, wherein the sound representing the contraction and / or relaxation period of the atrium, the sound representing the contraction and / or relaxation period of the ventricle, and the sound representing the electrocardiogram information are different.

8. The method according to claim 1, characterized in that: The electrocardiogram information includes a pacing wave signal.

9. The method according to claim 1, characterized in that: The echocardiogram includes an M-mode echocardiogram.

10. The method according to claim 1, characterized in that The echocardiogram includes an atrium echocardiogram and a ventricle echocardiogram; Detecting the systolic period and / or diastolic period of the atrium according to the echocardiogram, and generating a mechanical motion marker characterizing the systolic period and / or diastolic period of the atrium, detecting the systolic period and / or diastolic period of the ventricle according to the echocardiogram, and generating a mechanical motion marker characterizing the systolic period and / or diastolic period of the ventricle includes: The atrium's systole and / or diastole are detected based on the atrium's echocardiogram, and a mechanical motion marker characterizing the atrium's systole and / or diastole is generated. The ventricle's systole and / or diastole are detected based on the ventricle's echocardiogram, and a mechanical motion marker characterizing the ventricle's systole and / or diastole is generated.

11. The method according to any one of claims 1 to 10, characterized in that Detecting the systolic period and / or diastolic period of the atrium according to the echocardiogram and generating a mechanical motion marker representing the systolic period and / or diastolic period of the atrium, detecting the systolic period and / or diastolic period of the ventricle according to the echocardiogram and generating a mechanical motion marker representing the systolic period and / or diastolic period of the ventricle includes: When the mechanical movement corresponding to the systolic period and / or diastolic period of the atrium is detected according to the echocardiogram, a mechanical movement mark representing the systolic period and / or diastolic period of the atrium is generated; when the mechanical movement corresponding to the systolic period and / or diastolic period of the atrium is not detected according to the echocardiogram, a mechanical movement mark representing the systolic period and / or diastolic period of the atrium is not generated; When mechanical movement corresponding to the ventricular systole and / or diastole is detected according to the echocardiogram, a mechanical movement identifier representing the ventricular systole and / or diastole is generated; when mechanical movement corresponding to the ventricular systole and / or diastole is not detected according to the echocardiogram, a mechanical movement identifier representing the ventricular systole and / or diastole is not generated.

12. The method according to any one of claims 1 to 10, characterized in that The method further includes outputting an alarm message when at least one of the following conditions is met: The electrical signal corresponding to the atrial systole and / or diastole in the electrocardiographic information is inconsistent with the mechanical motion marker representing the atrial systole and / or diastole in terms of rhythm and frequency; and The electrical signal corresponding to the ventricular systole and / or diastole in the electrocardiographic information is inconsistent with the mechanical motion marker representing the ventricular systole and / or diastole in terms of rhythm and frequency.

13. The method according to claim 12, characterized in that The electrical signal corresponding to the atrial systole and / or diastole in the electrocardiographic information and the mechanical motion marker representing the atrial systole and / or diastole are inconsistent in rhythm and frequency, including: The electrocardiogram information contains electrocardiogram signals corresponding to the atrial contraction and / or diastole, while the echocardiogram does not detect mechanical motion corresponding to the atrial contraction and / or diastole; and / or, the electrocardiogram signals corresponding to the atrial contraction and / or diastole contained in the electrocardiogram information are faster than the mechanical motion corresponding to the atrial contraction and / or diastole detected in the echocardiogram; The electrical signal corresponding to the ventricular systole and / or diastole in the electrocardiogram information and the mechanical motion marker representing the ventricular systole and / or diastole are inconsistent in rhythm and frequency, including: The ECG information contains ECG signals corresponding to the ventricular systole and / or diastole, while the echocardiogram does not detect the mechanical movement corresponding to the ventricular systole and / or diastole; and / or, the ECG signals corresponding to the ventricular systole and / or diastole contained in the ECG information are faster than the mechanical movement corresponding to the ventricular systole and / or diastole detected in the echocardiogram.

14. The method according to any one of claims 1 to 10, characterized in that: The detecting the systolic period and / or diastolic period of the atrium according to the echocardiogram and generating a mechanical motion marker characterizing the systolic period and / or diastolic period of the atrium, and the detecting the systolic period and / or diastolic period of the ventricle according to the echocardiogram and generating a mechanical motion marker characterizing the systolic period and / or diastolic period of the ventricle include: The edge motion trajectory of the atria and ventricles is obtained according to the echocardiogram, the inner diameter dimensions of the atria and ventricles are obtained according to the edge motion trajectory of the atria and ventricles, the characteristic time points of the mechanical motion cycle of the atria and ventricles are obtained according to the inner diameter dimensions, the contraction period and / or diastole of the atria and the contraction period and / or diastole of the ventricles are obtained according to the characteristic time points of the mechanical motion cycle, the contraction period and / or diastole of the atria and the contraction period and / or diastole of the ventricles are marked, and a mechanical motion mark representing the contraction period and / or diastole of the atria and a mechanical motion mark representing the contraction period and / or diastole of the ventricles are generated.

15. The method according to any one of claims 1 to 10, characterized in that: The presenting of the mechanical motion identifier and the electrocardiogram information comprises: displaying the echocardiogram, the mechanical motion marker, and the electrocardiogram information, wherein the mechanical motion marker is independent of the echocardiogram; or The mechanical motion marker and the electrocardiogram information are displayed, but the echocardiogram is not displayed.

16. A heart monitoring method, characterized in that include: Sending ultrasonic waves to the heart of the tested body; receiving ultrasound echoes returned from the heart of the subject; generating an M-mode echocardiogram based on the ultrasound echo; Obtaining ECG information of the tested body; Detecting the period of mechanical movement of the atrial contraction period and the period of mechanical movement of the ventricular contraction period according to the M-mode echocardiogram, and generating a mechanical movement marker representing the period of mechanical movement of the atrial contraction period and the period of mechanical movement of the ventricular contraction period; The mechanical motion marker representing the mechanical motion period of the atrium's contraction period and the mechanical motion marker representing the mechanical motion period of the ventricle's contraction period are displayed on the same time axis together with the electrocardiogram information.

17. The method according to claim 16, characterized in that The detecting the period of mechanical movement of the atrial contraction period and the period of mechanical movement of the ventricular contraction period according to the M-mode echocardiogram, and generating a mechanical movement mark representing the period of mechanical movement of the atrial contraction period and the period of mechanical movement of the ventricular contraction period comprises: Identify the atria and ventricles from the M-mode echocardiogram; Obtain the inner diameters of the atria and ventricles according to their movement trajectories; Compare the inner diameters of the atria and ventricles at each time point to obtain characteristic time points of the movement cycles of the atria and ventricles during the contraction period; A mechanical motion marker representing the systolic period and / or diastolic period of the heart, atrium and / or ventricle is generated according to characteristic time points of the motion cycles of the systolic period of the atria and ventricles.

18. The method according to claim 17, characterized in that: When the mechanical motion identifier is a mechanical motion identifier representing the atrial contraction period, generating the mechanical motion identifier representing the atrial and ventricular contraction period according to the characteristic time points of the atrial and ventricular motion cycles includes: Obtaining atrial cardiac parameters according to characteristic time points of atrial motion cycle, wherein the atrial cardiac parameters include atrial diastolic end time point, atrial systolic end time point, and atrial systolic duration; obtaining atrial systolic duration according to atrial cardiac parameters; and generating a mechanical motion marker characterizing atrial systolic duration according to atrial systolic duration; When the mechanical motion identifier is a mechanical motion identifier representing the ventricular contraction period, generating the mechanical motion identifier representing the ventricular contraction period according to the characteristic time points of the atrium and ventricle motion cycles includes: The cardiac parameters of the ventricle are obtained according to the characteristic time points of the ventricular movement cycle, and the cardiac parameters of the ventricle include the end-diastole time point, the end-systole time point, and the length of the ventricular systole period; the ventricular systole period is obtained according to the cardiac parameters of the ventricle; and a mechanical motion marker representing the ventricular systole period is generated according to the ventricular systole period.

19. The method according to any one of claims 16 to 18, characterized in that: The mechanical motion mark is a bar graph, and the length of the bar representing the mechanical motion period of the atrium and ventricle contraction period represents the duration of the period of the mechanical motion of the atrium and ventricle contraction period.

20. The method of claim 19, wherein: The column length direction of the bar graph is parallel to the time axis, and the two end edges of the column representing the mechanical movement period of the atrium and ventricle contraction period correspond to the start and end times of the mechanical movement period of the atrium and ventricle contraction period, respectively.

21. A monitoring system, characterized in that include: An ultrasonic imaging module, the ultrasonic imaging module is used to transmit ultrasonic waves to the heart of the tested body, receive ultrasonic echoes returned from the heart of the tested body, and generate an echocardiogram based on the ultrasonic echoes; An ECG monitoring module, which is used to monitor ECG signals and generate ECG information that changes over time; A data processing module, wherein the input end of the data processing module is respectively connected to the output end signals of the ultrasound imaging module and the electrocardiogram monitoring module; the data processing module is used to receive electrocardiogram information from the electrocardiogram monitoring module and receive an echocardiogram from the ultrasound imaging module; detect the contraction period of the atrium according to the echocardiogram and generate a mechanical motion mark representing the contraction period of the atrium; detect the contraction period of the ventricle according to the echocardiogram and generate a mechanical motion mark representing the contraction period of the ventricle; An output module is connected to the output end signal of the data processing module; the output module is used to display the mechanical movement mark representing the contraction period of the atrium and the mechanical movement mark representing the contraction period of the ventricle and the electrocardiogram information on the same time axis.

22. A monitoring system, characterized in that include: An ultrasonic imaging module, the ultrasonic imaging module is used to transmit ultrasonic waves to the heart of the tested body, receive ultrasonic echoes returned from the heart of the tested body, and generate an M-mode echocardiogram based on the ultrasonic echoes; An ECG monitoring module, which is used to monitor ECG signals and generate ECG information that changes over time; A data processing module, the input end of which is respectively connected to the output end signals of the ultrasound imaging module and the ECG monitoring module; the data processing module is used to receive ECG information from the ECG monitoring module and receive an echocardiogram from the ultrasound imaging module; detect the period of mechanical movement of the atrium during contraction and the period of mechanical movement of the ventricle during contraction according to the M-mode echocardiogram, and generate a mechanical movement mark representing the period of mechanical movement of the atrium during contraction and a mechanical movement mark representing the period of mechanical movement of the ventricle during contraction; An output module is connected to the output end signal of the data processing module; the output module is used to display the mechanical movement mark representing the contraction period of the atrium and the mechanical movement mark representing the contraction period of the ventricle and the electrocardiogram information on the same time axis.

Images