A brain ultrasound acquisition device

Abstract

The application belongs to the field of ultrasonic imaging, and particularly relates to a brain ultrasonic acquisition device, which comprises a probe and a controller; wherein the probe is in a helmet structure, and comprises a shell and array elements, all the array elements are arranged on the whole shell through a through hole array on the shell, and the number of the array elements is determined according to the size of the shell and the size of a single array element; each array element can be used for receiving and transmitting ultrasonic signals, and the receiving and transmitting signal end of each array element points to the center of the shell; the controller is used for sequentially controlling each array element to transmit ultrasonic signals and all the array elements to receive ultrasonic signals after the signal transmission. The application can realize the acquisition of three-dimensional full scattering ultrasonic signals of the brain, and provide accurate and effective actual data for the research of brain ultrasonic imaging.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of ultrasonic imaging, and more particularly, relates to a brain ultrasonic acquisition device. BACKGROUND

[0002] At present, the application of ultrasonic diagnostic instrument in clinical diagnosis has been very popular, which has made great contribution to the accurate understanding of patient's condition by doctors and the formulation of medical treatment scheme. However, the application in physical examination is still insufficient, especially in brain ultrasonic detection.

[0003] When the patient performs brain ultrasonic detection, the ultrasonic wave is emitted by the emission probe, and the ultrasonic wave is received by the receiving probe to achieve the imaging effect. However, the current brain ultrasonic detection needs the operator to control the position of the probe and set the detection parameters based on the artificial experience to perform the exploratory ultrasonic detection, which is too dependent on the operator and the judgment and positioning are not accurate. SUMMARY

[0004] In view of the defects and improvement needs of the prior art, the present application provides a brain ultrasonic acquisition device, which aims to improve the accuracy of brain ultrasonic detection.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a brain ultrasonic acquisition device is provided, which comprises a probe and a controller.

[0006] Among them, the probe is in a helmet structure, including a shell and an array element, all array elements are arrayed and fixed on the whole shell through the through hole array on the shell, the number of array elements is determined according to the size of the shell and the size of a single array element; each array element can be used for receiving and emitting ultrasonic signals, and the receiving and emitting signal end of each array element points to the center of the shell; the controller is used for controlling each array element to emit ultrasonic signals in turn and receiving ultrasonic signals by all array elements after signal emission.

[0007] Further, the shell is in a hemispherical shape, and the shell depth satisfies that the device depth is greater than the average height of the skull, so as to ensure that the brain of the subject can be completely covered.

[0008] Further, each array element is in a cylindrical shape.

[0009] Further, the controller is also used for brain ultrasonic imaging according to all ultrasonic signals received by the array element.

[0010] According to another aspect of the present application, the present application also provides a brain ultrasonic acquisition method, which puts the brain ultrasonic acquisition device as described above on the object to be measured, and performs ultrasonic signal acquisition under the control of the controller in the brain ultrasonic acquisition device.

[0011] Further, the helmet structure of the brain ultrasound acquisition device has a diameter greater than the average skull diameter of the object to be measured.

[0012] Further, a solid coupling agent is arranged between the brain ultrasound acquisition device and the object to be measured.

[0013] Further, the brain ultrasound imaging is performed according to all the ultrasound signals received by the array elements.

[0014] Overall, the above technical solutions conceived by the present application can achieve the following beneficial effects:

[0015] (1) The present application provides a brain ultrasound acquisition device. First, the ultrasonic probe is in a helmet structure, and the shape of the helmet needs to consider the ergonomics part, which can meet the integrity of brain imaging detection of different patients. The patient only needs to keep the head fixed, which can improve the comfort compared with the prior art. Second, all the array elements are arrayed through the through holes on the shell and fixed on the whole shell. The controller can control each array element to emit an ultrasonic signal in turn and receive the ultrasonic signal after the signal is emitted. That is, each array element can be used as a transmitting unit, and at the same time, each array element can also be used as a receiving unit. After one array element emits a signal, multiple receiving array elements can jointly receive the ultrasonic wave to complete imaging acquisition. When receiving the signal, some array elements, that is, the array elements opposite to the transmitting array elements, receive the transmission signal of the brain tissue. The transmission signal can be used for full waveform inversion, which can ensure the accuracy and comprehensiveness of the brain ultrasound image of the present application.

[0016] (2) The present application also provides a brain ultrasound acquisition method, which is an automatic operation of ultrasonic acquisition. A variety of probe modes can be used. On the one hand, it can be accurately positioned, and on the other hand, it is conducive to comprehensive detection and judgment, and can improve the imaging effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A probe schematic diagram in a brain ultrasound acquisition device provided by the embodiment of the present application;

[0018] Figure 2 An array element arrangement schematic diagram provided by the embodiment of the present application;

[0019] Figure 3 An application schematic diagram of a brain ultrasound acquisition device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0021] Embodiment one

[0022] A brain ultrasonic acquisition device, comprising: a probe and a controller; wherein, as shown in the figure, the probe is in a helmet structure, comprising a shell and an array element, all array elements are arrayed through the hole array on the shell and fixed on the whole shell, the number of array elements is determined according to the size of the shell and the size of a single array element; each array element can be used for receiving and transmitting ultrasonic signals, and the receiving and transmitting signal end of each array element points to the center of the shell, as shown in the figure; the controller is used for sequentially controlling each array element to transmit ultrasonic signals and all array elements to receive ultrasonic signals after signal transmission. Figure 1 Figure 2

[0023] The present embodiment proposes a brain ultrasonic acquisition device, wherein the ultrasonic probe is in a helmet structure, and the controller can sequentially control each array element to transmit ultrasonic signals and all array elements to receive ultrasonic signals after signal transmission. The acquisition device, each array element can be used as a transmitting unit, and at the same time, each array element can also be used as a receiving unit. After one array element transmits signals, multiple receiving array elements can jointly receive ultrasonic waves to complete imaging acquisition. Changing the transmitting array element and then transmitting and receiving signals, and repeating the operation can complete layered three-dimensional brain image acquisition. When receiving signals, part of the array elements, that is, the array elements opposite to the transmitting array element, receive the transmission signals of the brain tissue, and the transmission signals can be used for full waveform inversion.

[0024] The present device can receive signals passing through the imaging object at 360° after one signal is transmitted. The full waveform inversion concept originates from geophysics. When there are defects such as loose, honeycomb holes in concrete, scattering and diffraction of waves will occur. According to the characteristics of the initial arrival time of the wave and the energy attenuation characteristics, frequency change and wave distortion degree of the wave, the acoustic parameters of the concrete in the measured range can be obtained. The application of this method in human tissue ultrasonic is being explored, but when there are structures such as bones, blood vessels and tumors in human tissue, according to the characteristics of the initial arrival time of the wave and the energy attenuation characteristics, frequency change and wave distortion degree of the wave, the acoustic parameters of the human tissue in the measured range can be obtained. It is currently believed that there is great potential in imaging correction.

[0025] The device of the present embodiment is in a helmet structure, as shown in the figure Figure 3 ​​As shown, the shape of the helmet needs to consider the ergonomic part, which can meet the integrity of the brain imaging detection of different patients. The patient only needs to keep the head fixed, which can improve the comfort compared with the prior art.

[0026] As a preferred embodiment, the shell is hemispherical, such as Figure 3 As shown, the shell depth meets: the device depth is greater than the average height of the skull, which ensures that the brain of the subject can be completely covered. According to the image of the human brain, if the device needs to collect the entire brain signal, the device depth needs to be greater than the average height of the skull, which can ensure the entire brain signal acquisition.

[0027] As a preferred embodiment, each array element is in a cylindrical shape, which is easy to move and the result is simple.

[0028] As a preferred embodiment, the controller is also used for brain ultrasound imaging according to all the ultrasonic signals received by the array elements.

[0029] In a specific implementation, one control mainboard can be used to control multiple transmission / acquisition circuit boards to control the transmission, acquisition and data transmission process of the entire system. During the transmission process, the pulse generator integrated with the T / R switch generates a high-voltage pulse signal, which excites the gated array elements through a multiplexing high-voltage analog switch to transmit ultrasonic waves. The ultrasonic waves get reflected echoes and transmitted echoes through the tissue, enter the receiving state, and the high-voltage analog switch switches multiple times to get the scattering signals received by different array elements. The scattering signals get low-voltage signals through the receiving path of the pulse generator. The low-voltage signals flow to the ultrasonic analog front end (ADC) and are converted into digital signals through simple amplification, low-pass filtering and sampling, and then transmitted to the FPGA for packaging. The FPGA transmits the original data packet to the server through the gigabit network port. The server decodes and pre-processes the original data packet, and then uses the GPU for image reconstruction.

[0030] In general, the probe of the embodiment is automatically controlled and can transmit and receive multiple signals, which can accurately position and facilitate comprehensive detection, and improve the imaging effect.

[0031] Embodiment two

[0032] A brain ultrasound acquisition method, the brain ultrasound acquisition device as described in embodiment one above is worn on the object to be measured, and the controller in the brain ultrasound acquisition device controls the acquisition of ultrasonic signals.

[0033] Since each array element can serve as a transmitting unit, and each array element can also serve as a receiving unit. After one array element transmits a signal, multiple receiving array elements can jointly receive ultrasonic waves to complete imaging acquisition. By changing the transmitting array element, the signal transmission and reception are repeated, and the layered three-dimensional brain image acquisition can be completed.

[0034] As a preferred implementation, the head-mounted structure of the brain ultrasound acquisition device has a diameter greater than the average skull diameter of the object to be measured, so as to be ergonomic and ensure comfort.

[0035] As a preferred implementation, the influence of severe air ultrasound attenuation on imaging accuracy can be reduced by setting a solid coupling agent between the brain ultrasound acquisition device and the object to be measured, and using the solid coupling agent to realize coupling between the ultrasound transducer and the scanning object.

[0036] As a preferred implementation, it further includes brain ultrasound imaging according to all the ultrasound signals received by the array elements.

[0037] The related technical solutions are the same as those of Embodiment One, which will not be described here.

[0038] Those skilled in the art will readily understand that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cranial ultrasound acquisition apparatus, characterized in that, Comprise: a probe and a controller; wherein the probe is in a helmet structure, comprising a shell and elements, all elements are arrayed and fixed on the whole shell through an array of through holes on the shell, the number of elements is determined according to the size of the shell and the size of a single element; each element can be used to receive and transmit ultrasonic signals, and the receiving and transmitting signal end of each element points to the center of the shell, the shell is in a hemispherical shape, and the shell depth satisfies: the device depth is greater than the average height of the skull, ensuring that the brain of the subject can be completely covered; the controller is used to control each element to transmit ultrasonic signals in turn and all elements to receive ultrasonic signals after signal transmission, and also used to perform craniocerebral ultrasonic imaging according to all ultrasonic signals received by the elements; After one element transmits a signal, multiple receiving elements collectively receive ultrasonic waves to complete imaging acquisition, after one signal is transmitted, signals can be received at 360° through the imaging object, the controller changes the transmitting element to perform signal transmission and reception, and the repeated operation is used to complete layered three-dimensional craniocerebral image acquisition; when receiving signals, some elements, that is, elements located opposite to the transmitting element, receive transmission signals of brain tissue, and the transmission signals are used for full waveform inversion by the controller to realize craniocerebral imaging correction.

2. The brain ultrasound acquisition device according to claim 1, characterized in that, Each element is in a cylindrical shape.

3. A method of cranial ultrasound acquisition, characterized in that, The craniocerebral ultrasonic acquisition device is worn on the object to be measured, and ultrasonic signal acquisition is performed under the control of the controller in the craniocerebral ultrasonic acquisition device.

4. The method of claim 3, wherein, The diameter of the helmet structure of the craniocerebral ultrasonic acquisition device is greater than the average skull diameter of the object to be measured.

5. The method of claim 3, wherein, A solid coupling agent is arranged between the craniocerebral ultrasonic acquisition device and the object to be measured.

6. The brain ultrasound acquisition method of claim 3, wherein, Further comprise: According to all ultrasonic signals received by the elements, craniocerebral ultrasonic imaging is performed.

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