A method, device, ultrasonic equipment and medium for suppressing artifacts

Abstract

The present application discloses a method, device, ultrasonic equipment and medium for suppressing artifacts, which includes: obtaining transducer parameters and preset sampling transmission times of ultrasonic equipment; determining the distance difference of each second transmission relative to the first transmission in the preset sampling transmission times according to the thickness of the matching layer and the thickness of the acoustic lens; determining the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the acoustic impedance of the chip, the acoustic impedance of the matching layer and the acoustic impedance of the acoustic lens; obtaining echo data corresponding to the ultrasonic wave, and determining the echo data interference value caused by each second transmission by using the distance difference, the percentage and the echo data; removing the echo data interference value in the echo data to obtain the echo data after interference suppression, so as to obtain the final ultrasonic image by using the echo data after interference suppression. In this way, artifacts can be suppressed without reducing the information content and signal-to-noise ratio of the near-field echo image, thereby not affecting clinical diagnosis.

Description

Technical Field

[0001] The present application relates to the field of ultrasonic imaging technology, and in particular to an artifact suppression method, device, ultrasonic equipment and medium. Background Art

[0002] The transducer in the ultrasonic device stimulates its chip to vibrate through electrical signals, generating ultrasonic waves. After the ultrasonic waves are reflected back by the human body, they stimulate the transducer chip to vibrate. This vibration generates an electrical signal that is received and processed by the ultrasonic system and finally imaged. The main structure of the transducer is as follows: Figure 1 As shown, it can be seen that the process of ultrasonic wave generation in the transducer needs to pass through the path from the chip to the matching layer to the acoustic lens to be emitted.

[0003] See also Figure 2 As shown in the figure, it is a schematic diagram of an array element unit. The electrode excites the chip to generate sound waves, which pass through the matching layer and the acoustic lens. It should be noted here that the materials of the chip, matching layer, and acoustic lens are completely different and belong to different media. When ultrasonic waves propagate from one medium to another, part of the energy is reflected back to the original medium at the interface between the two media and becomes a reflected wave, and the other part propagates through the interface in another medium and becomes a transmitted wave. The energy distribution of reflection and transmission is related to the acoustic impedance of the physical property of the medium itself. The reflected ultrasonic waves will be reflected and transmitted many times. However, only after the ultrasonic wave is initially emitted and directly transmits through the matching layer and the acoustic lens, the echo reflected by the medium to be observed is the real object echo, and the image of the real object is formed. Other images formed after multiple reflections and transmissions are all artifacts, which will affect the real object image, so the artifacts need to be suppressed.

[0004] Current artifact suppression methods are mainly achieved by performing gain control on echoes. However, while gain control suppresses artifacts, it also reduces the information content and signal-to-noise ratio of near-field echo images, affecting near-field clinical diagnosis. Summary of the invention

[0005] In view of this, the purpose of this application is to provide a method, device, ultrasonic equipment and medium for suppressing artifacts, which can suppress artifacts without reducing the information content and signal-to-noise ratio of near-field echo images, thereby not affecting clinical diagnosis. The specific scheme is as follows:

[0006] In a first aspect, the present application discloses a method for suppressing artifacts, which is applied to an ultrasound device, comprising:

[0007] Obtaining transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected at the beginning of the current scan;

[0008] Determining the distance difference between each second transmission and the first transmission in the preset number of sampling transmissions according to the matching layer thickness and the acoustic lens thickness;

[0009] Determining the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance;

[0010] Acquire echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission by using the distance difference, the percentage and the echo data;

[0011] The echo data interference value in the echo data is removed to obtain interference suppressed echo data, so as to obtain a final ultrasonic image using the interference suppressed echo data.

[0012] Optionally, determining the distance difference between each second transmission and the first transmission in the preset number of sampling transmissions according to the matching layer thickness and the acoustic lens thickness includes:

[0013] If the matching layer in the transducer is one layer and the preset sampling transmission times is two, then twice the thickness of the matching layer is taken as the first distance difference between the first second transmission and the first transmission;

[0014] Twice the sum of the thickness of the matching layer and the thickness of the acoustic lens is taken as a second distance difference of the second transmission relative to the first transmission.

[0015] Optionally, the determining of the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance includes:

[0016] Determine the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance;

[0017] Determine the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance;

[0018] taking a ratio of the first emission energy value to the initial emission energy value of the first transmission as a first percentage;

[0019] A ratio of the second emission energy value to the first transmitted initial emission energy value is taken as a second percentage.

[0020] Optionally, determining the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance includes:

[0021] The first emission energy value of the first second transmission is determined according to the first operation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the first operation formula is:

[0022]

[0023] Among them, E 1 represents the first emission energy value of the first second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the acoustic impedance of the chip.

[0024] Optionally, determining the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance includes:

[0025] The second emission energy value of the second second transmission is determined according to the second calculation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the second calculation formula is:

[0026]

[0027] Among them, E 2 represents the second emission energy value of the second second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the chip acoustic impedance, Z t Represents the acoustic impedance of the tissue to be observed.

[0028] Optionally, the determining the echo data interference value caused by each second transmission by using the distance difference, the percentage and the echo data includes:

[0029] The first echo data interference value is determined using a third operation formula, the first distance difference, the first percentage, and the echo data, wherein the third operation formula is:

[0030] Signal 1 =Per 1 ×Signal(l 1 ), l 1 =[l 0 +ΔL 1 ,D],l 0 =[0,D]

[0031] Among them, Signal 1 represents the first echo data interference value, Per 1 Indicates the first percentage, Signal(l 0 ) represents the echo data, ΔL 1 represents the first distance difference, and D represents the maximum depth index preset by the ultrasonic device;

[0032] The second echo data interference value is determined using a fourth operation formula, the second distance difference, the second percentage, and the echo data, wherein the fourth operation formula is:

[0033] Signal 2 =Per 2 ×Signal(l 2 ), l 2 =[l 0 +ΔL 2 ,D]

[0034] Among them, Signal 2 represents the second echo data interference value, Per 2 represents the second percentage, ΔL 2 represents the second distance difference.

[0035] Optionally, removing the echo data interference value in the echo data to obtain interference suppressed echo data includes:

[0036] The echo data interference value in the echo data is removed by using a fifth operation formula to obtain the echo data after interference suppression, wherein the fifth operation formula is:

[0037] Signal′=Signal(l 0 )-Signal 1 -Signal 2

[0038] Here, Signal′ represents the echo data after interference suppression.

[0039] In a second aspect, the present application discloses a device for suppressing artifacts, which is applied to ultrasound equipment, comprising:

[0040] a data acquisition module, used to acquire transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected at the beginning of the current scan;

[0041] A distance difference acquisition module, used to determine the distance difference between each second transmission and the first transmission in the preset number of sampling transmissions according to the matching layer thickness and the acoustic lens thickness;

[0042] a ratio determination module, configured to determine a percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance;

[0043] an interference value determination module, configured to obtain echo data corresponding to the ultrasonic wave, and determine an interference value of the echo data caused by each second transmission by using the distance difference, the percentage and the echo data;

[0044] The artifact suppression module is used to remove the echo data interference value in the echo data to obtain the echo data after interference suppression, so as to obtain the final ultrasonic image by using the echo data after interference suppression.

[0045] In a third aspect, the present application discloses an ultrasonic device, comprising:

[0046] Memory and processor;

[0047] Wherein, the memory is used to store computer programs;

[0048] The processor is used to execute the computer program to implement the aforementioned disclosed artifact suppression method.

[0049] In a fourth aspect, the present application discloses a computer-readable storage medium for storing a computer program, wherein the computer program implements the aforementioned disclosed artifact suppression method when executed by a processor.

[0050] It can be seen that the present application first needs to obtain the transducer parameters and the preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include the chip acoustic impedance, the matching layer thickness, the matching layer acoustic impedance, the acoustic lens thickness and the acoustic lens acoustic impedance, and the preset sampling transmission times are the second transmissions caused by the reflection signal generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of the ultrasonic wave from the chip to the biological tissue to be detected at the beginning of the current scan. Then, the distance difference of each second transmission relative to the first transmission in the preset sampling transmission times is determined according to the matching layer thickness and the acoustic lens thickness. Then, the percentage between the emission energy of each second transmission and the emission energy of the first transmission is determined according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance. Then, the echo data corresponding to the ultrasonic wave is obtained, and the echo data interference value caused by each second transmission is determined by using the distance difference, the percentage and the echo data. Then, the echo data interference value in the echo data can be eliminated to obtain the echo data after interference suppression, so as to obtain the final ultrasonic image using the echo data after interference suppression.

[0051] It can be seen that in the present application, the second transmission that forms the artifact after the first transmission is processed separately, and the echo data interference value caused by each second transmission is determined from the overall echo data according to the distance difference between the second transmission that forms the artifact and the first transmission that forms the real object image and the percentage of the emission energy. Then, the echo data interference value in the echo data is eliminated, that is, the echo interference value that causes the artifact is eliminated, and the echo data after interference suppression can be obtained. The ultrasonic image obtained by using the echo data after interference suppression is the image after artifact suppression. Since the echo data interference value corresponding to the artifact in the echo data is directly determined in the present application, and then the echo data interference value is eliminated from the echo data, only the part that causes the artifact is eliminated, instead of directly suppressing the echo data gain in the prior art to reduce the overall echo data, the information content and signal-to-noise ratio of the near-field echo image will not be reduced, thereby not affecting the clinical diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0053] Figure 1 A schematic diagram of the main structure of a transducer disclosed in this application;

[0054] Figure 2 A schematic diagram of an array element unit of a specific transducer disclosed in this application;

[0055] Figure 3 This is a flow chart of an artifact suppression method disclosed in this application;

[0056] Figure 4 An ultrasonic image of an artifact disclosed in the present application;

[0057] Figure 5 A schematic diagram of an ultrasonic imaging transmission principle disclosed in the present application;

[0058] Figure 6 A flowchart of a specific artifact suppression method disclosed in this application;

[0059] Figure 7 A specific ultrasonic imaging principle diagram disclosed in this application;

[0060] Figure 8 A flowchart of a specific artifact suppression method disclosed in this application;

[0061] Fig. 9 This is a schematic diagram of the structure of a pseudo-image suppression device disclosed in this application;

[0062] Fig.10 This is a schematic diagram of the structure of an ultrasonic device disclosed in this application. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0064] At present, the method of suppressing artifacts is mainly achieved by gain control of echoes. However, while suppressing artifacts, gain control will also reduce the information content and signal-to-noise ratio of near-field echo images, affecting near-field clinical diagnosis. In view of this, the present application proposes an artifact suppression method that can suppress artifacts without reducing the information content and signal-to-noise ratio of near-field echo images, thereby not affecting clinical diagnosis.

[0065] See also Figure 3 As shown, the embodiment of the present application discloses a method for suppressing artifacts, which is applied to ultrasound equipment. The method includes:

[0066] Step S11: Obtain transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected when the current scan starts.

[0067] In the above Figure 2 In the process, the chip emits ultrasonic waves through the PS interface (chip and matching layer), and reflection 1 and transmission 1 phenomena occur. The energy of reflection 1 dissipates at the EP interface, and the energy of transmission 1 passes through the SA interface (matching layer and acoustic lens), and reflection 2 and transmission 2 occur again. The energy of reflection 2 reaches the PS interface and is decomposed into reflection 3 and transmitted back to the SA direction. The transmission 2 energy of SA continues to move forward to the AB interface (acoustic lens and the outside world), and reflection 4 and transmission 3 occur. In principle, as long as there is sound wave emission, reflection and transmission physical phenomena will always occur at PS, SA, and AB. The transmitted sound wave passes through the AB interface, enters the medium to be observed (the medium to be observed of the medical ultrasound equipment is biological tissue) and receives the signal reflected back from the medium to be observed for imaging. Because there is more than one transmission scene, the medium to be observed reflects the echo more than once, and the time interval is related to the matching layer and the thickness of the acoustic lens.

[0068] See also Figure 4 The figure shown is the echo image obtained by placing the transducer of the medical ultrasound equipment in the air. Due to the acoustic impedance of the air, it can be considered that air reflection occurs on the AB surface and there should be no signal. However, due to multiple transducer reflections, information that does not belong to air reflection appears within the near field range of 5mm. This information is the result of the sound waves constantly reflecting in the matching layer and the acoustic lens medium. The signal strength decreases from near to far, and the energy decreases in sequence. The farther the signal is, the more times it is reflected in the matching layer and the acoustic lens. If the medium to be observed is biological tissue, there will also be signals reflected back by different transmitted sound waves. If the transmission time difference is too long, artifacts will appear in the near field. For example, Figure 2 When the transducer includes a matching layer and an acoustic lens, the main transmission generated is as follows Figure 5 As shown in the figure, three different transmitted sound waves pass through the same object and form images at different depths. Among them, only the first transmission is the real object echo, and the following two are artifacts.

[0069] In the actual process, it is necessary to first obtain the transducer parameters of the ultrasonic device and the preset sampling transmission times, wherein the transducer parameters include the chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are the second transmissions caused by the reflection signal generated at the junction of different structural layers in addition to the first transmission, and each second transmission generates an artifact, and the first transmission is the first transmission of the ultrasonic wave from the chip to the biological tissue to be detected at the beginning of the current scan. For example, in the above Figure 5 In the figure, the first transmission is also the normal transmission 1, and the second transmission includes the transmission 2 caused by the reflection of the transmission signal from the SA surface and the transmission 3 caused by the reflection of the transmission signal from the AB surface. The sampling transmission times can be determined according to the number of matching layers in the transducer in the ultrasonic device. When the matching layer includes two layers, the preset sampling transmission times can be three. When the matching layer increases, the second transmission times caused by reflection will increase, and the calculation method is consistent with the embodiment of the present solution.

[0070] Step S12: determining the distance difference between each second transmission and the first transmission in the preset number of sampling transmissions according to the matching layer thickness and the acoustic lens thickness.

[0071] It can be understood that it is also necessary to determine the distance difference between each second transmission and the first transmission in the preset number of sampling transmissions according to the thickness of the matching layer and the thickness of the acoustic lens.

[0072] Specifically, as above Figure 5 As shown in , if the matching layer in the transducer is one layer and the preset sampling transmission number is two, twice the thickness of the matching layer is used as the first distance difference between the first second transmission and the first transmission; and twice the sum of the thickness of the matching layer and the thickness of the acoustic lens is used as the second distance difference between the second second transmission and the first transmission.

[0073] That is, see above Figure 5 As shown, if the matching layer in the transducer is one layer, the preset sampling transmission times is two, the first second transmission is also Figure 5 Transmission 2 in the second transmission is Figure 5 Therefore, twice the thickness of the matching layer is taken as the first distance difference between the first second transmission and the first transmission. Twice the sum of the thickness of the matching layer and the thickness of the acoustic lens is taken as the second distance difference between the second second transmission and the first transmission.

[0074] Step S13: determining the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance.

[0075] Accordingly, after determining the distance difference between each second transmission and the first transmission, it is also necessary to determine the percentage between the emission energy of each second transmission and the emission energy of the first transmission based on the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance.

[0076] Specifically, if the matching layer in the transducer is one layer, and the preset sampling transmission number is two, the percentage between the emission energy of each second transmission and the emission energy of the first transmission is determined according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, including: determining the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; determining the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; taking the ratio of the first emission energy value to the initial emission energy value of the first transmission as the first percentage; taking the ratio of the second emission energy value to the initial emission energy value of the first transmission as the second percentage.

[0077] Step S14: Acquire echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission using the distance difference, the percentage and the echo data.

[0078] After determining the percentage, it is necessary to obtain the echo data corresponding to the ultrasonic wave, and then the echo data interference value caused by each second transmission can be determined using the distance difference, the percentage and the echo data. Since the echo data includes data causing artifacts, it is necessary to first determine the echo data interference value caused by each second transmission based on the distance difference, the percentage and the echo data, that is, determine the echo data interference value that forms the artifacts in the echo data.

[0079] Step S15: removing the echo data interference value in the echo data to obtain interference suppressed echo data, so as to obtain a final ultrasonic image using the interference suppressed echo data.

[0080] It can be understood that after determining the echo data interference value, the echo data interference value in the echo data can be eliminated to eliminate the data forming artifacts in the echo data and obtain the echo data after interference suppression, so as to obtain the final ultrasound image using the echo data after interference suppression, so that the final ultrasound image is the ultrasound image after artifact suppression.

[0081] It can be seen that the present application first needs to obtain the transducer parameters and the preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include the chip acoustic impedance, the matching layer thickness, the matching layer acoustic impedance, the acoustic lens thickness and the acoustic lens acoustic impedance, and the preset sampling transmission times are the second transmissions caused by the reflection signal generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of the ultrasonic wave from the chip to the biological tissue to be detected at the beginning of the current scan. Then, the distance difference of each second transmission relative to the first transmission in the preset sampling transmission times is determined according to the matching layer thickness and the acoustic lens thickness. Then, the percentage between the emission energy of each second transmission and the emission energy of the first transmission is determined according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance. Then, the echo data corresponding to the ultrasonic wave is obtained, and the echo data interference value caused by each second transmission is determined by using the distance difference, the percentage and the echo data. Then, the echo data interference value in the echo data can be eliminated to obtain the echo data after interference suppression, so as to obtain the final ultrasonic image using the echo data after interference suppression.

[0082] It can be seen that in the present application, the second transmission that forms the artifact after the first transmission is processed separately, and the echo data interference value caused by each second transmission is determined from the overall echo data according to the distance difference between the second transmission that forms the artifact and the first transmission that forms the real object image and the percentage of the emission energy. Then the echo data interference value in the echo data is eliminated, that is, the echo interference value that causes the artifact is eliminated, so that the echo data after interference suppression can be obtained. The ultrasonic image obtained by using the echo data after interference suppression is the image after artifact suppression. Since the echo data interference value corresponding to the artifact in the echo data is directly determined in the present application, and then the echo data interference value is eliminated from the echo data, only the part that causes the artifact is eliminated, instead of directly suppressing the echo data gain in the prior art to reduce the overall echo data, the information content and signal-to-noise ratio of the near-field echo image will not be reduced, thereby not affecting the clinical diagnosis.

[0083] See also Figure 6 As shown, the embodiment of the present application discloses a specific artifact suppression method, which is applied to ultrasound equipment. The method includes:

[0084] Step S21: Obtain transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected when the current scan starts.

[0085] Step S22: if the matching layer in the transducer is one layer and the preset sampling transmission times is two, twice the thickness of the matching layer is used as the first distance difference between the first second transmission and the first transmission.

[0086] See above Figure 5 As shown, if the matching layer in the transducer is one layer, the preset sampling transmission times is two, the first second transmission is also Figure 5 Therefore, twice the thickness of the matching layer is taken as the first distance difference of the first second transmission relative to the first transmission.

[0087] Step S23: taking twice the sum of the thickness of the matching layer and the thickness of the acoustic lens as the second distance difference of the second transmission relative to the first transmission.

[0088] See above Figure 5 As shown, if the matching layer in the transducer is one layer, the preset sampling transmission times is two times, and the second transmission is also Figure 5 In transmission 3, twice the sum of the thickness of the matching layer and the thickness of the acoustic lens is taken as the second distance difference of the second transmission relative to the first transmission.

[0089] Above Figure 5 Can be equivalent to Figure 7 In the process shown, the transducer (Probe) of the ultrasonic device is transferred to the medium to be observed (i.e. Figure 7 There is a certain depth between the first ellipse under the Probe box) and the distance difference between the observed medium and the echo position corresponding to the first and second transmissions is the first distance difference ΔL 1 The distance difference between the observed medium and the echo position corresponding to the second transmission is the second distance difference ΔL 2 .

[0090] Step S24: determining the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance.

[0091] It is also necessary to determine the percentage between the emission energy of each second transmission and the emission energy of the first transmission based on the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance. First, it is necessary to determine the first emission energy value of the first second transmission based on the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance.

[0092] Specifically, the first emission energy value of the first second transmission needs to be determined according to a first calculation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the first calculation formula is:

[0093]

[0094] Among them, E 1 represents the first emission energy value of the first second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the acoustic impedance of the chip.

[0095] Step S25: determining the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance.

[0096] It is also necessary to determine the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance. Specifically, the second emission energy value of the second second transmission is determined according to a second calculation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the second calculation formula is:

[0097]

[0098] Among them, E 2 represents the second emission energy value of the second second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the chip acoustic impedance, Z t Represents the acoustic impedance of the tissue to be observed.

[0099] Step S26: taking the ratio of the first emission energy value to the first transmitted initial emission energy value as a first percentage.

[0100] After obtaining the first emission energy and the second emission energy, it is also necessary to take the ratio of the first emission energy value to the initial emission energy value of the first transmission as a first percentage.

[0101] That is, Among them, Per 1 represents the first percentage.

[0102] Step S27: taking the ratio of the second emission energy value to the first transmitted initial emission energy value as a second percentage.

[0103] After obtaining the first emission energy and the second emission energy, it is also necessary to take the ratio of the second emission energy value to the initial emission energy value of the first transmission as the second percentage.

[0104] That is, Among them, Per 2 represents the second percentage.

[0105] Step S28: Acquire echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission using the distance difference, the percentage and the echo data.

[0106] It is also necessary to obtain echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission using the distance difference, the percentage, and the echo data. Specifically, determining the echo data interference value caused by each second transmission using the distance difference, the percentage, and the echo data includes: determining the first echo data interference value using a third operation formula, the first distance difference, the first percentage, and the echo data, wherein the third operation formula is:

[0107] Signal 1 =Per 1 ×Signal(l 1 ), l 1 =[l 0 +ΔL 1 ,D],l 0 =[0,D]

[0108] Among them, Signal 1 represents the first echo data interference value, Per 1 Indicates the first percentage, Signal(l 0 ) represents the echo data, ΔL 1 represents the first distance difference, and D represents the maximum depth index preset by the ultrasonic device;

[0109] The second echo data interference value is determined using a fourth operation formula, the second distance difference, the second percentage, and the echo data, wherein the fourth operation formula is:

[0110] Signal 2 =Per 2 ×Signal(l 2 ), l 2 =[l 0 +ΔL 2 ,D]

[0111] Among them, Signal 2 represents the second echo data interference value, Per 2 represents the second percentage, ΔL 2 represents the second distance difference.

[0112] Step S29: removing the echo data interference value in the echo data to obtain interference suppressed echo data, so as to obtain a final ultrasonic image using the interference suppressed echo data.

[0113] Then, the echo data interference value in the echo data is removed to obtain the echo data after interference suppression, so as to obtain the final ultrasonic image using the echo data after interference suppression. Specifically, the echo data interference value in the echo data is removed using the fifth operation formula to obtain the echo data after interference suppression, wherein the fifth operation formula is:

[0114] Signal′=Signal(l 0 )-Signal 1 -Signal 2

[0115] Here, Signal′ represents the echo data after interference suppression.

[0116] See also Figure 8 As shown in FIG. 1 , it is a flowchart of the artifact suppression method. First, the thickness and acoustic impedance parameters of the transducer chip, matching layer, and acoustic lens are obtained. Then, the sampling transmission times are set, and the aforementioned distance difference is calculated, the corresponding percentage is calculated, and the echo data is obtained. The echo data interference value is calculated according to the distance difference and percentage, and synthesized with the echo data, that is, the echo data interference value in the echo data is removed, and then the result is output.

[0117] See also Fig. 9 As shown, the embodiment of the present application discloses a device for suppressing artifacts, which is applied to ultrasound equipment, including:

[0118] The data acquisition module 11 is used to acquire the transducer parameters and the preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include the chip acoustic impedance, the matching layer thickness, the matching layer acoustic impedance, the acoustic lens thickness and the acoustic lens acoustic impedance, and the preset sampling transmission times are the second transmissions caused by the reflection signal generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of the ultrasonic wave from the chip to the biological tissue to be detected at the beginning of the current scan;

[0119] A distance difference acquisition module 12, configured to determine a distance difference between each second transmission in the preset number of sampling transmissions and the first transmission according to the matching layer thickness and the acoustic lens thickness;

[0120] a ratio determination module 13, configured to determine the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance;

[0121] an interference value determination module 14, configured to obtain echo data corresponding to the ultrasonic wave, and determine an interference value of the echo data caused by each second transmission by using the distance difference, the percentage and the echo data;

[0122] The artifact suppression module 15 is used to remove the echo data interference value in the echo data to obtain interference suppressed echo data, so as to obtain a final ultrasonic image using the interference suppressed echo data.

[0123] It can be seen that the present application first needs to obtain the transducer parameters and the preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include the chip acoustic impedance, the matching layer thickness, the matching layer acoustic impedance, the acoustic lens thickness and the acoustic lens acoustic impedance, and the preset sampling transmission times are the second transmissions caused by the reflection signal generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of the ultrasonic wave from the chip to the biological tissue to be detected at the beginning of the current scan. Then, the distance difference of each second transmission relative to the first transmission in the preset sampling transmission times is determined according to the matching layer thickness and the acoustic lens thickness. Then, the percentage between the emission energy of each second transmission and the emission energy of the first transmission is determined according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance. Then, the echo data corresponding to the ultrasonic wave is obtained, and the echo data interference value caused by each second transmission is determined by using the distance difference, the percentage and the echo data. Then, the echo data interference value in the echo data can be eliminated to obtain the echo data after interference suppression, so as to obtain the final ultrasonic image using the echo data after interference suppression. It can be seen that in the present application, the second transmission that forms the artifact after the first transmission is processed separately, and the echo data interference value caused by each second transmission is determined from the overall echo data according to the distance difference between the second transmission that forms the artifact and the first transmission that forms the real object image and the percentage of the emission energy. Then the echo data interference value in the echo data is eliminated, that is, the echo interference value that causes the artifact is eliminated, so that the echo data after interference suppression can be obtained. The ultrasonic image obtained by using the echo data after interference suppression is the image after artifact suppression. Since the echo data interference value corresponding to the artifact in the echo data is directly determined in the present application, and then the echo data interference value is eliminated from the echo data, only the part that causes the artifact is eliminated, instead of directly suppressing the echo data gain in the prior art to reduce the overall echo data, the information content and signal-to-noise ratio of the near-field echo image will not be reduced, thereby not affecting the clinical diagnosis.

[0124] In a specific implementation process, the distance difference acquisition module 12 is used to:

[0125] If the matching layer in the transducer is one layer and the preset sampling transmission times is two, then twice the thickness of the matching layer is taken as the first distance difference between the first second transmission and the first transmission;

[0126] Twice the sum of the thickness of the matching layer and the thickness of the acoustic lens is taken as a second distance difference of the second transmission relative to the first transmission.

[0127] In a specific implementation process, the ratio determination module 13 is used to:

[0128] Determine the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance;

[0129] Determine the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance;

[0130] taking a ratio of the first emission energy value to the initial emission energy value of the first transmission as a first percentage;

[0131] A ratio of the second emission energy value to the first transmitted initial emission energy value is taken as a second percentage.

[0132] In a specific implementation process, the ratio determination module 13 is used to:

[0133] The first emission energy value of the first second transmission is determined according to the first operation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the first operation formula is:

[0134]

[0135] Among them, E 1 represents the first emission energy value of the first second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the acoustic impedance of the chip.

[0136] In a specific implementation process, the ratio determination module 13 is used to:

[0137] The second emission energy value of the second second transmission is determined according to the second calculation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the second calculation formula is:

[0138]

[0139] Among them, E 2 represents the second emission energy value of the second second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the chip acoustic impedance, Z t Represents the acoustic impedance of the tissue to be observed.

[0140] In a specific implementation process, the interference value determination module 14 is used to:

[0141] The first echo data interference value is determined using a third operation formula, the first distance difference, the first percentage, and the echo data, wherein the third operation formula is:

[0142] Signal 1 =Per 1 ×Signal(l 1 ), l 1 =[l 0 +ΔL 1 ,D],l 0 =[0,D]

[0143] Among them, Signal 1 represents the first echo data interference value, Per 1 Indicates the first percentage, Signal(l 0 ) represents the echo data, ΔL 1 represents the first distance difference, and D represents the maximum depth index preset by the ultrasonic device;

[0144] The second echo data interference value is determined using a fourth operation formula, the second distance difference, the second percentage, and the echo data, wherein the fourth operation formula is:

[0145] Signal 2 =Per 2 ×Signal(l 2 ), l 2 =[l 0 +ΔL 2 ,D]

[0146] Among them, Signal 2 represents the second echo data interference value, Per 2 represents the second percentage, ΔL 2 represents the second distance difference.

[0147] In a specific implementation process, the artifact suppression module 15 is used to:

[0148] The echo data interference value in the echo data is removed by using a fifth operation formula to obtain the echo data after interference suppression, wherein the fifth operation formula is:

[0149] Signal′=Signal(l 0 )-Signal 1 -Signal 2

[0150] Here, Signal′ represents the echo data after interference suppression.

[0151] For further information, see Fig.10 As shown, the embodiment of the present application further discloses an ultrasound device, including: a processor 21 and a memory 22.

[0152] The memory 22 is used to store computer programs; the processor 21 is used to execute the computer programs to implement the artifact suppression method disclosed in the above embodiments.

[0153] For the specific process of the above-mentioned artifact suppression method, reference may be made to the corresponding contents disclosed in the aforementioned embodiments, which will not be described in detail here.

[0154] Furthermore, an embodiment of the present application also discloses a computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the artifact suppression method disclosed in any of the aforementioned embodiments.

[0155] For the specific process of the above-mentioned artifact suppression method, reference may be made to the corresponding contents disclosed in the aforementioned embodiments, which will not be described in detail here.

[0156] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0157] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0158] Finally, it should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a series of processes, methods, articles or equipment containing other elements include not only those elements, but also other elements not explicitly listed, or also include elements inherent to such processes, methods, articles or equipment. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or equipment that includes the elements.

[0159] The above is a detailed introduction to the artifact suppression method, device, ultrasonic equipment and medium provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for suppressing artifacts, characterized in that: Applications in ultrasonic equipment, including: Obtaining transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected at the beginning of the current scan; The matching layer in the transducer is one layer, and the preset sampling transmission times is two times; Determining the distance difference between each second transmission in the preset number of sampling transmissions and the first transmission comprises: Determine the distance difference between the biological tissue to be detected and the echo position corresponding to the first second transmission as the first distance difference of the first second transmission relative to the first transmission; determine the distance difference between the biological tissue to be detected and the echo position corresponding to the second second transmission as the second distance difference of the second second transmission relative to the first transmission; Or, twice the thickness of the matching layer is used as the first distance difference between the first second transmission and the first transmission; twice the sum of the thickness of the matching layer and the thickness of the acoustic lens is used as the second distance difference between the second second transmission and the first transmission; Determining the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, including: determining the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; determining the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; taking the ratio of the first emission energy value to the initial emission energy value of the first transmission as the first percentage; taking the ratio of the second emission energy value to the initial emission energy value of the first transmission as the second percentage; Acquire the echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission by using the distance difference, the percentage and the echo data, including: determining the first echo data interference value by using a third operation formula, the first distance difference, the first percentage and the echo data, wherein the third operation formula is: Signal1=Per1×Signal(l1), l1=[l0+ΔL1,D], l0=[0,D], Signal1 represents the first echo data interference value, Per1 represents the first percentage, Signal(l0) represents the echo data, ΔL1 represents the first distance difference, and D represents the maximum depth index preset by the ultrasonic device; determine the second echo data interference value by using a fourth operation formula, the second distance difference, the second percentage and the echo data, wherein the fourth operation formula is: Signal2=Per2×Signal(l2), l2=[l0+ΔL2,D], Signal2 represents the second echo data interference value, Per2 represents the second percentage, and ΔL2 represents the second distance difference; The echo data interference value in the echo data is removed to obtain interference suppressed echo data, so as to obtain a final ultrasonic image using the interference suppressed echo data.

2. The method for suppressing artifacts according to claim 1, characterized in that: The determining of the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance comprises: The first emission energy value of the first second transmission is determined according to the first calculation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the first calculation formula is: Wherein, E1 represents the first emission energy value of the first second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the acoustic impedance of the chip.

3. The method for suppressing artifacts according to claim 1, characterized in that: The determining of the second emission energy value of the second transmission for the second time according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance comprises: The second emission energy value of the second second transmission is determined according to the second calculation formula, the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, wherein the second calculation formula is: Wherein, E2 represents the second emission energy value of the second second transmission, E represents the initial emission energy value of the first transmission, and Z a represents the acoustic impedance of the acoustic lens, Z s represents the matching layer acoustic impedance, Z p represents the acoustic impedance of the chip, Z t Represents the acoustic impedance of the tissue to be observed.

4. The method for suppressing artifacts according to claim 1, characterized in that: The step of removing the echo data interference value from the echo data to obtain the interference suppressed echo data includes: The echo data interference value in the echo data is removed by using a fifth operation formula to obtain the echo data after interference suppression, wherein the fifth operation formula is: Signal′=Signal(l0)-Signal1-Signal2; Here, Signal′ represents the echo data after interference suppression.

5. A method for suppressing artifacts, characterized in that: Applications in ultrasonic equipment, including: Obtaining transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected at the beginning of the current scan; The matching layer in the transducer is N layers, and the preset sampling transmission times is N+1 times; wherein N is an integer greater than 1; Determining the distance difference between each second transmission in the preset number of sampling transmissions and the first transmission comprises: Determine a distance difference between the biological tissue to be detected and the echo position corresponding to the i-th second transmission as a distance difference between the i-th second transmission and the first transmission, where 1≤i≤N+1 and i is an integer; Or, for the i-th second transmission, if 1≤i≤N and i is an integer, twice the thickness of the matching layer passed by the reflection signal corresponding to the i-th second transmission is taken as the distance difference between the i-th second transmission and the first transmission; if i is N+1, twice the sum of the thickness of the matching layer passed by the reflection signal corresponding to the i-th second transmission and the thickness of the acoustic lens is taken as the distance difference between the i-th second transmission and the first transmission; Determining the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, comprising: determining the emission energy value of the i-th second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; taking the ratio of the emission energy value of the i-th second transmission to the initial emission energy value of the first transmission as a percentage; wherein 1≤i≤N+1 and i is an integer; Acquire echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission by using the distance difference, the percentage and the echo data, including: Signal i =Per i ×Signal(l i ), l i =[l0+ΔL i ,D], l0=[0,D]; where Signal i represents the echo data interference value caused by the second transmission of the i-th time, Per i represents the percentage of the emission energy value of the i-th second transmission to the initial emission energy value of the first transmission, Signal(l0) represents the echo data, ΔL i represents the distance difference between the i-th second transmission and the first transmission, D represents the maximum depth index preset by the ultrasound device; 1≤i≤N+1 and i is an integer; The echo data interference value in the echo data is removed to obtain interference suppressed echo data, so as to obtain a final ultrasonic image using the interference suppressed echo data.

6. A device for suppressing artifacts, characterized in that: Applications in ultrasonic equipment, including: a first data acquisition module, for acquiring transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected at the beginning of the current scan; The matching layer in the transducer is one layer, and the preset sampling transmission times is two times; The first distance difference acquisition module is used to determine the distance difference between each second transmission in the preset number of sampling transmissions and the first transmission, including: Determine the distance difference between the biological tissue to be detected and the echo position corresponding to the first second transmission as the first distance difference of the first second transmission relative to the first transmission; determine the distance difference between the biological tissue to be detected and the echo position corresponding to the second second transmission as the second distance difference of the second second transmission relative to the first transmission; Or, twice the thickness of the matching layer is used as the first distance difference between the first second transmission and the first transmission; twice the sum of the thickness of the matching layer and the thickness of the acoustic lens is used as the second distance difference between the second second transmission and the first transmission; A first ratio determination module is used to determine the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, including: determining the first emission energy value of the first second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; determining the second emission energy value of the second second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; taking the ratio of the first emission energy value to the initial emission energy value of the first transmission as the first percentage; taking the ratio of the second emission energy value to the initial emission energy value of the first transmission as the second percentage; The first interference value determination module is used to obtain the echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission by using the distance difference, the percentage and the echo data, including: using a third calculation formula, the first distance difference, the first percentage and the echo data to determine the first echo data interference value, wherein the third calculation formula is: Signal1 = Per1 × Signal(l1), l1 = [l0 + ΔL1, D], l0 = [0, D], Signal1 represents the first echo data interference value, Per1 represents The first percentage, Signal(l0) represents the echo data, ΔL1 represents the first distance difference, and D represents the maximum depth index preset by the ultrasound device; the second echo data interference value is determined by using a fourth operation formula, the second distance difference, the second percentage and the echo data, wherein the fourth operation formula is: Signal2=Per2×Signal(l2), l2=[l0+ΔL2,D], Signal2 represents the second echo data interference value, Per2 represents the second percentage, and ΔL2 represents the second distance difference; The first artifact suppression module is used to remove the echo data interference value in the echo data to obtain interference suppressed echo data, so as to obtain a final ultrasonic image using the interference suppressed echo data.

7. A device for suppressing artifacts, characterized in that: Applications in ultrasonic equipment, including: a second data acquisition module, for acquiring transducer parameters and preset sampling transmission times of the ultrasonic device, wherein the transducer parameters include chip acoustic impedance, matching layer thickness, matching layer acoustic impedance, acoustic lens thickness and acoustic lens acoustic impedance, and the preset sampling transmission times are second transmissions caused by reflection signals generated at the junction of different structural layers in addition to the first transmission, and the first transmission is the first transmission of ultrasonic waves from the chip to the biological tissue to be detected at the beginning of the current scan; The matching layer in the transducer is N layers, and the preset sampling transmission times is N+1 times; wherein N is an integer greater than 1; The second distance difference acquisition module is used to determine the distance difference between each second transmission in the preset number of sampling transmissions and the first transmission, including: Determine a distance difference between the biological tissue to be detected and the echo position corresponding to the i-th second transmission as a distance difference between the i-th second transmission and the first transmission, where 1≤i≤N+1 and i is an integer; Or, for the i-th second transmission, if 1≤i≤N and i is an integer, twice the thickness of the matching layer passed by the reflection signal corresponding to the i-th second transmission is taken as the distance difference between the i-th second transmission and the first transmission; if i is N+1, twice the sum of the thickness of the matching layer passed by the reflection signal corresponding to the i-th second transmission and the thickness of the acoustic lens is taken as the distance difference between the i-th second transmission and the first transmission; A second ratio determination module is used to determine the percentage between the emission energy of each second transmission and the emission energy of the first transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance, including: determining the emission energy value of the i-th second transmission according to the chip acoustic impedance, the matching layer acoustic impedance and the acoustic lens acoustic impedance; taking the ratio of the emission energy value of the i-th second transmission to the initial emission energy value of the first transmission as a percentage; wherein 1≤i≤N+1 and i is an integer; A second interference value determination module is used to obtain echo data corresponding to the ultrasonic wave, and determine the echo data interference value caused by each second transmission by using the distance difference, the percentage and the echo data, including: i =Per i ×Signal(l i ), l i =[l0+ΔL i ,D], l0=[0,D]; where Signal i represents the echo data interference value caused by the second transmission of the i-th time, Per i represents the percentage of the emission energy value of the i-th second transmission to the initial emission energy value of the first transmission, Signal(l0) represents the echo data, ΔL i represents the distance difference between the i-th second transmission and the first transmission, D represents the maximum depth index preset by the ultrasound device; 1≤i≤N+1 and i is an integer; The second artifact suppression module is used to remove the echo data interference value in the echo data to obtain the interference suppressed echo data, so as to obtain the final ultrasonic image using the interference suppressed echo data.

8. An ultrasonic device, characterized in that: include: Memory and processor; Wherein, the memory is used to store computer programs; The processor is used to execute the computer program to implement the artifact suppression method according to any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that: Used to store a computer program, wherein when the computer program is executed by a processor, the artifact suppression method according to any one of claims 1 to 5 is implemented.

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