CN111938699B - System and method for guiding use of ultrasonic equipment - Google Patents
System and method for guiding use of ultrasonic equipment Download PDFInfo
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- A61B8/54—Control of the diagnostic device
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- A—HUMAN NECESSITIES
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- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4245—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient
- A61B8/4263—Details of probe positioning or probe attachment to the patient involving determining the position of the probe, e.g. with respect to an external reference frame or to the patient using sensors not mounted on the probe, e.g. mounted on an external reference frame
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Abstract
The invention discloses a system and a method for guiding to use ultrasonic equipment. According to the invention, the database is established, the real-time image is matched with the image with the known position in the database, the position of the probe corresponding to the image which is successfully matched is taken as the position of the current probe, the moving direction and distance of the standard surface acquired by the probe are acquired and displayed in real time according to the position data, and then a user is guided to adjust the position of the probe in real time, a high-quality ultrasonic image is acquired, and an ultrasonic image basis is provided for quickly and accurately diagnosing the state of an illness of a patient.
Description
Technical Field
The invention relates to the field of medical equipment use management, in particular to a system and a method for guiding the use of ultrasonic equipment.
Background
Ultrasound imaging has become the most common modality of medical imaging, often used in many areas of clinical medical specialties and biomedical research, and the number of clinical applications based on ultrasound is increasing. Ultrasonic imaging is widely applied to the fields of disease diagnosis, health examination and the like due to the characteristics of safety, non-invasive examination, real-time display and the like. Images formed by ultrasonic waves are divided into different modes according to different signal transmitting, receiving and processing methods in the imaging process. Among them, B-mode ultrasound is considered to be the basis of all other modes of ultrasound imaging, and is also one of the most widely used imaging modes in clinical examination diagnosis. In the traditional B-mode imaging process, doctors obtain images of different parts and different sections of human bodies by continuously adjusting the scanning position and the scanning direction of an ultrasonic probe, three-dimensional images of corresponding tissues and organs are constructed in the brains according to the images and anatomical experience knowledge, and then the patients are examined, diagnosed and surgically planned by combining clinical experience.
The training of the ultrasonic operating personnel needs to spend a lot of time and cost, and the urgent requirements of the primary hospital for ultrasonic diagnosis cannot be met. The main process of the ultrasonic scanning at present is guided by an operator. The patient lies on the scanning bed according to the corresponding posture and the guidance of the operator, and the operator finds the position of the corresponding organ according to the experience. During the scanning process, the operator's proficiency and scanning method are completely depended on. A skilled ultrasonic operator can effectively and quickly find the corresponding organ standard surface through professional training and learning. But primary hospitals have a high demand for specialized sonographers and primary hospitals in remote areas have difficulty meeting the need to have such skilled sonographers.
In the actual operation process, the quality of the ultrasonic image seriously depends on the scanning technique of an operator, and the unified scanning specification is difficult to realize. China has a large population base, the requirement for ultrasonic diagnosis is large every year, and the requirement of sonographers with abundant clinical experience at present is still large. In addition to ultrasound diagnosis, ultrasound screening is in great demand. The health examination of the masses of people every year requires a large amount of disease screening. Lack of operator proficiency may result in failure to find the lesion in a timely manner, potentially delaying the patient's treatment time.
Disclosure of Invention
Aiming at the defects in the prior art, the system and the method for guiding the use of the ultrasonic equipment provided by the invention solve the problem that higher ultrasonic images are difficult to obtain due to insufficient experience of ultrasonic operators.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
the system for guiding the use of the ultrasonic equipment comprises a database, a probe movement guiding unit and an ultrasonic equipment guiding use unit;
the database comprises a standard surface of a whole body organ and a plurality of ultrasonic images of known probe positions corresponding to the organ;
the probe movement guiding unit is used for matching the ultrasonic image acquired by the probe in real time with the ultrasonic image in the database, acquiring the position of the probe in real time, and acquiring the distance between the probe and the standard surface and the movement direction and distance required by the probe to acquire the standard surface according to the position of the probe;
the ultrasound device guidance use unit includes:
the first-level interface comprises a plurality of visceral organ option windows and is used for selecting visceral organs of ultrasound images to be acquired;
the secondary interface comprises a plurality of standard surface option windows and is used for selecting standard surfaces to be collected;
and the three-level interface comprises a window for displaying the ultrasonic image acquired by the probe in real time and a window for displaying the data output by the probe movement guiding unit.
Furthermore, the ultrasound images of a plurality of known probe positions corresponding to the organs in the database include:
taking each standard surface of a target organ as a starting point, keeping a probe of the ultrasonic equipment in vertical contact, and recording the position of the probe; taking the piezoelectric ceramic plane as a base point, and taking the front and back 10 degrees as an interval, moving the probe to acquire a first ultrasonic image of 0-180 degrees below the position;
on the basis of the first ultrasonic image, moving the probe in the positive direction along a straight line track, and acquiring second ultrasonic images of 0-180 degrees at all the acquisition points by taking 1cm as the interval distance of the acquisition points;
and adjusting the position of the probe by taking 45 degrees as the deflection interval of the probe, and acquiring a third ultrasonic image by adopting the same acquisition method as the first ultrasonic image and the second ultrasonic image.
Further, the ultrasonic equipment introduction unit is further included, and the ultrasonic equipment introduction unit stores the use instruction, the fault solving method and the emergency contact way of the equipment.
A method of guiding the use of an ultrasound device is provided, comprising the steps of:
s1, establishing a standard surface containing the viscera of the whole body and a database of a plurality of ultrasonic images corresponding to the viscera and with known probe positions;
s2, selecting an organ of an ultrasonic image to be acquired through the ultrasonic device guide using unit, and selecting a standard surface to be acquired;
s3, acquiring an ultrasonic image of the target organ in real time through a probe of the ultrasonic equipment, and displaying the ultrasonic image in real time through the ultrasonic equipment guiding and using unit; simultaneously sending the ultrasonic image to a probe movement guiding unit;
s4, matching the received ultrasonic image with the ultrasonic image corresponding to the selected visceral organ of the ultrasonic image to be acquired in the database through the probe moving guide unit, and acquiring the position of the probe in real time according to the matching result;
s5, acquiring the distance between the probe and the standard surface and the direction and distance of the probe to the standard surface according to the position of the probe by the probe moving guide unit;
and S6, displaying the distance between the probe and the standard surface acquired by the probe movement guiding unit, the direction and the distance of movement required by the probe to acquire the standard surface through the ultrasonic device guiding and using unit.
Further, the specific method of step S1 includes the following sub-steps:
s1-1, determining a target organ, acquiring a standard surface of the target organ, establishing a minimum rectangular frame surrounding the target organ, judging whether the width of the rectangular frame is integral multiple of one-half of the width of the probe, if so, entering a step S1-2, otherwise, filling the width of the rectangular frame to be integral multiple of one-half of the width of the probe, and entering a step S1-2;
s1-2, taking each standard surface of the target organ as a starting point in the rectangular frame, keeping the probe of the ultrasonic equipment in vertical contact, and recording the position of the probe; taking the piezoelectric ceramic plane as a base point, taking the front and back 10 degrees as an interval, and moving the probe to acquire an ultrasonic image of 0-180 degrees below the position;
s1-3, moving the probe in the positive direction along the linear track, and collecting 0-180-degree ultrasonic images at all the collection points at the interval distance of 1cm as the collection points;
s1-4, adjusting the position of the probe by taking 45 degrees as the deflection interval of the probe, and acquiring ultrasonic images of the probe when the probe deflects 45 degrees, 90 degrees, 135 degrees and 180 degrees by adopting the same method as the steps S1-2 and S1-3;
and S1-5, grouping all the ultrasonic images corresponding to each organ into a data set, and further obtaining a database which comprises a whole body organ standard surface and a plurality of ultrasonic images corresponding to organs and with known probe positions.
Further, an ultrasonic equipment introduction unit is embedded in each step and used for viewing the use instruction, the fault solving method and the emergency contact way of the equipment.
The invention has the beneficial effects that: according to the invention, the database is established, the real-time image is matched with the image with the known position in the database, the position of the probe corresponding to the image which is successfully matched is taken as the position of the current probe, the moving direction and the moving distance of the probe to be acquired to the standard surface are acquired and displayed in real time according to the position data, and then a user is guided to adjust the position of the probe in real time to acquire the ultrasonic image with higher quality.
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FIG. 1 is a block diagram of a system embodying the present invention;
FIG. 2 is a schematic flow chart of the present invention in an embodiment.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1, the system for guiding the use of the ultrasonic equipment comprises a database, a probe movement guiding unit and an ultrasonic equipment guiding use unit;
the database comprises a standard surface of a whole body organ and a plurality of ultrasonic images of known probe positions corresponding to the organ;
the probe movement guiding unit is used for matching the ultrasonic image acquired by the probe in real time with the ultrasonic image in the database, acquiring the position of the probe in real time, and acquiring the distance between the probe and the standard surface and the movement direction and distance required by the probe to acquire the standard surface according to the position of the probe;
the ultrasound device guidance use unit includes:
the first-level interface comprises a plurality of visceral organ option windows and is used for selecting visceral organs of ultrasound images to be acquired;
the secondary interface comprises a plurality of standard surface option windows and is used for selecting standard surfaces to be collected;
and the three-level interface comprises a window for displaying the ultrasonic image acquired by the probe in real time and a window for displaying the data output by the probe movement guiding unit.
The ultrasound images of a plurality of known probe positions corresponding to the internal organs in the database include:
taking each standard surface of a target organ as a starting point, keeping a probe of the ultrasonic equipment in vertical contact, and recording the position of the probe; taking the piezoelectric ceramic plane as a base point, and taking the front and back 10 degrees as an interval, moving the probe to acquire a first ultrasonic image of 0-180 degrees below the position;
on the basis of the first ultrasonic image, moving the probe in the positive direction along a straight line track, and acquiring second ultrasonic images of 0-180 degrees at all the acquisition points by taking 1cm as the interval distance of the acquisition points;
and adjusting the position of the probe by taking 45 degrees as the deflection interval of the probe, and acquiring a third ultrasonic image by adopting the same acquisition method as the first ultrasonic image and the second ultrasonic image.
The system also comprises an ultrasonic equipment introduction unit embedded in each level of interfaces of the ultrasonic equipment guiding and using unit, wherein the ultrasonic equipment introduction unit stores a use specification, a fault solving method and an emergency contact way of the equipment, so that a user can conveniently check the equipment at any time.
As shown in fig. 2, the method of guiding the use of an ultrasound device comprises the steps of:
s1, establishing a standard surface containing the viscera of the whole body and a database of a plurality of ultrasonic images corresponding to the viscera and with known probe positions;
s2, selecting an organ of an ultrasonic image to be acquired through the ultrasonic device guide using unit, and selecting a standard surface to be acquired;
s3, acquiring an ultrasonic image of the target organ in real time through a probe of the ultrasonic equipment, and displaying the ultrasonic image in real time through the ultrasonic equipment guiding and using unit; simultaneously sending the ultrasonic image to a probe movement guiding unit;
s4, matching the received ultrasonic image with the ultrasonic image corresponding to the selected visceral organ of the ultrasonic image to be acquired in the database through the probe moving guide unit, and acquiring the position of the probe in real time according to the matching result;
s5, acquiring the distance between the probe and the standard surface and the direction and distance of the probe to the standard surface according to the position of the probe by the probe moving guide unit;
and S6, displaying the distance between the probe and the standard surface acquired by the probe movement guiding unit, the direction and the distance of movement required by the probe to acquire the standard surface through the ultrasonic device guiding and using unit.
The specific method of step S1 includes the following substeps:
s1-1, determining a target organ, acquiring a standard surface of the target organ, establishing a minimum rectangular frame surrounding the target organ, judging whether the width of the rectangular frame is integral multiple of one-half of the width of the probe, if so, entering a step S1-2, otherwise, filling the width of the rectangular frame to be integral multiple of one-half of the width of the probe, and entering a step S1-2;
s1-2, taking each standard surface of the target organ as a starting point in the rectangular frame, keeping the probe of the ultrasonic equipment in vertical contact, and recording the position of the probe; taking the piezoelectric ceramic plane as a base point, taking the front and back 10 degrees as an interval, and moving the probe to acquire an ultrasonic image of 0-180 degrees below the position;
s1-3, moving the probe in the positive direction along the linear track, and collecting 0-180-degree ultrasonic images at all the collection points at the interval distance of 1cm as the collection points;
s1-4, adjusting the position of the probe by taking 45 degrees as the deflection interval of the probe, and acquiring ultrasonic images of the probe when the probe deflects 45 degrees, 90 degrees, 135 degrees and 180 degrees by adopting the same method as the steps S1-2 and S1-3;
and S1-5, grouping all the ultrasonic images corresponding to each organ into a data set, and further obtaining a database which comprises a whole body organ standard surface and a plurality of ultrasonic images corresponding to organs and with known probe positions.
In one embodiment of the invention, an ultrasonic equipment introduction unit is embedded in each step, the ultrasonic equipment introduction unit stores a use instruction, a fault solution method and an emergency contact method of the equipment, when a user encounters a problem or equipment fault, the user can refer to the use instruction or the fault solution method by clicking the ultrasonic equipment introduction unit, and when the user cannot solve the problem or equipment fault, the user can obtain help outwards through the emergency contact method.
In the specific implementation process, the images in the database can be classified and perfected according to different ages, sexes, weights, heights and the like, and options such as the ages, the sexes, the weights, the heights and the like are added in a primary interface of the ultrasonic device guide using unit.
In the actual measurement process, the image measured by the actual probe and the standard surface in the database are subjected to image registration by using mutual information. The standard surface and the real-time ultrasonic image are collected by the same instrument, the size of the images is consistent, and the screen resolution can be adjusted if the images are inconsistent. And (4) calculating mutual information of the acquired image and the image in the database corresponding to the corresponding standard surface, traversing the image of the part, and obtaining the image in the database corresponding to the image when the calculated mutual information value is maximum. Since each image is consistent with all image registration calculation methods in the database, we can use the GPU to accelerate the calculation to achieve real-time effect.
Because the shape and the size of human viscera are basically the same, and the occupied area of a lesion area is usually smaller, a large amount of data with the same characteristics exist in an ultrasonic image, the probe movement guiding unit can match the ultrasonic image in an image characteristic matching mode, the image characteristic matching method can adopt a plurality of prior arts, and the method is not repeated in the application.
In summary, the database is established, the real-time image is matched with the image with the known position in the database, the position of the probe corresponding to the image which is successfully matched is taken as the position of the current probe, the direction and the distance of the movement required by the probe to acquire the standard surface are acquired according to the position data and displayed in real time, and then a user is guided to adjust the position of the probe in real time, a high-quality ultrasonic image is acquired, and an ultrasonic image basis is provided for quickly and accurately diagnosing the state of an illness of a patient.
Claims (4)
1. A system for guiding the use of an ultrasonic device, which is characterized by comprising a database, a probe movement guiding unit and an ultrasonic device guiding and using unit, wherein the database and the ultrasonic device guiding and using unit are connected with each other;
the database comprises a standard surface of a whole body organ and a plurality of ultrasonic images of known probe positions corresponding to the organ;
the probe movement guiding unit is used for matching the ultrasonic image acquired by the probe in real time with the ultrasonic image in the database, acquiring the position of the probe in real time, and acquiring the distance between the probe and the standard surface and the movement direction and distance required by the probe to acquire the standard surface according to the position of the probe;
the ultrasound device guidance use unit includes:
the first-level interface comprises a plurality of visceral organ option windows and is used for selecting visceral organs of ultrasound images to be acquired;
the secondary interface comprises a plurality of standard surface option windows and is used for selecting standard surfaces to be collected;
the three-level interface comprises a window for displaying the ultrasonic image acquired by the probe in real time and a window for displaying the output data of the probe movement guiding unit;
the ultrasound images of a plurality of known probe positions corresponding to the visceral organs in the database comprise:
taking each standard surface of a target organ as a starting point, keeping a probe of the ultrasonic equipment in vertical contact, and recording the position of the probe; taking the piezoelectric ceramic plane as a base point, and taking the front and back 10 degrees as an interval, moving the probe to acquire a first ultrasonic image of 0-180 degrees below the position;
on the basis of the first ultrasonic image, moving the probe in the positive direction along a straight line track, and acquiring second ultrasonic images of 0-180 degrees at all the acquisition points by taking 1cm as the interval distance of the acquisition points;
and adjusting the position of the probe by taking 45 degrees as the deflection interval of the probe, and acquiring a third ultrasonic image by adopting the same acquisition method as the first ultrasonic image and the second ultrasonic image.
2. The system for guiding the use of an ultrasound device as recited in claim 1, further comprising an ultrasound device introduction unit storing instructions for use, troubleshooting methods, and emergency contacts for the device.
3. A method of guiding the use of an ultrasound device, comprising the steps of:
s1, establishing a standard surface containing the viscera of the whole body and a database of a plurality of ultrasonic images corresponding to the viscera and with known probe positions;
s2, selecting an organ of an ultrasonic image to be acquired through the ultrasonic device guide using unit, and selecting a standard surface to be acquired;
s3, acquiring an ultrasonic image of the target organ in real time through a probe of the ultrasonic equipment, and displaying the ultrasonic image in real time through the ultrasonic equipment guiding and using unit; simultaneously sending the ultrasonic image to a probe movement guiding unit;
s4, matching the received ultrasonic image with the ultrasonic image corresponding to the selected visceral organ of the ultrasonic image to be acquired in the database through the probe moving guide unit, and acquiring the position of the probe in real time according to the matching result;
s5, acquiring the distance between the probe and the standard surface and the direction and distance of the probe to the standard surface according to the position of the probe by the probe moving guide unit;
s6, displaying the distance between the probe and the standard surface acquired by the probe moving guide unit and the direction and distance of the movement of the probe to the standard surface through the ultrasonic equipment guiding and using unit;
the specific method of the step S1 includes the following sub-steps:
s1-1, determining a target organ, acquiring a standard surface of the target organ, establishing a minimum rectangular frame surrounding the target organ, judging whether the width of the rectangular frame is integral multiple of one-half of the width of the probe, if so, entering a step S1-2, otherwise, filling the width of the rectangular frame to be integral multiple of one-half of the width of the probe, and entering a step S1-2;
s1-2, taking each standard surface of the target organ as a starting point in the rectangular frame, keeping the probe of the ultrasonic equipment in vertical contact, and recording the position of the probe; taking the piezoelectric ceramic plane as a base point, taking the front and back 10 degrees as an interval, and moving the probe to acquire an ultrasonic image of 0-180 degrees below the position;
s1-3, moving the probe in the positive direction along the linear track, and collecting 0-180-degree ultrasonic images at all the collection points at the interval distance of 1cm as the collection points;
s1-4, adjusting the position of the probe by taking 45 degrees as the deflection interval of the probe, and acquiring ultrasonic images of the probe when the probe deflects 45 degrees, 90 degrees, 135 degrees and 180 degrees by adopting the same method as the steps S1-2 and S1-3;
and S1-5, grouping all the ultrasonic images corresponding to each organ into a data set, and further obtaining a database which comprises a whole body organ standard surface and a plurality of ultrasonic images corresponding to organs and with known probe positions.
4. The method for guiding the use of an ultrasound device as claimed in claim 3, wherein an ultrasound device introduction unit is embedded in each step, and the ultrasound device introduction unit is used for viewing the use instruction, the fault resolution method and the emergency contact information of the device.
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