CN117085262A - Method, device, storage medium and processor for preventing misuse of applicator - Google Patents
Method, device, storage medium and processor for preventing misuse of applicator Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 238000003860 storage Methods 0.000 title claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 47
- 238000005070 sampling Methods 0.000 claims abstract description 40
- 238000001959 radiotherapy Methods 0.000 claims abstract description 36
- 238000013136 deep learning model Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 12
- 238000002560 therapeutic procedure Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 abstract description 9
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- 206010028980 Neoplasm Diseases 0.000 description 5
- 238000010894 electron beam technology Methods 0.000 description 4
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1075—Monitoring, verifying, controlling systems and methods for testing, calibrating, or quality assurance of the radiation treatment apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N2005/1074—Details of the control system, e.g. user interfaces
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- A—HUMAN NECESSITIES
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- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
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- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
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Abstract
The embodiment of the application provides a method, a device, a storage medium and a processor for preventing misuse of a therapeutic apparatus. An image acquisition device is installed at the bottom end of a treatment head of a radiation treatment device, a characteristic tag comprising model data of a treatment applicator is embedded in the upper end face of the treatment applicator, and the treatment applicator is used for radiation treatment executed by the treatment head, and the method comprises the following steps: when the treatment head is positioned in a sampling area on the applicator, controlling the image acquisition equipment to acquire an image of the upper end face of the applicator in real time; comparing the model data with the target model data under the condition that the image feature data corresponding to the feature tag exists in the image; in the case where the model data is not identical to the target model data, the treatment head is prohibited from performing radiation treatment to prevent the radiation treatment from being performed using the wrong applicator. The device can be quickly identified, so that the device is prevented from being misused in the radiotherapy process, and the safety of the radiotherapy is improved.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a method, a device, a storage medium and a processor for preventing misuse of a therapeutic apparatus.
Background
With the rapid development of radiotherapy technology, the implementation of accurate dose irradiation to a focus target area has become a main direction of the development of modern radiotherapy technology. Based on this requirement, theory of conformal radiation therapy is proposed. Namely, the dose distribution generated by the medical electron linear accelerator in the patient is as close as possible to the shape of the tumor of the patient, and the radiation dose of normal tissues and vital parts around the tumor is reduced as much as possible, so as to achieve the purpose of treating the patient. In actual use, different applicators with different specifications are needed to be selected due to different actual demands of clinical patients. However, the difference between different specifications of the applicator is small, the applicator is difficult to identify by naked eyes, misuse of the applicator can occur, the treatment effect is affected, and the risk of affecting the health of a patient is generated.
Disclosure of Invention
It is an object of embodiments of the present application to provide a method, apparatus, storage medium and processor for preventing misuse of a applicator.
In order to achieve the above object, a first aspect of the present application provides a method for preventing misuse of a applicator, a treatment head bottom end of a radiation treatment apparatus is mounted with an image acquisition apparatus, an upper end face of the applicator is embedded with a feature tag including model data of the applicator, the applicator is used for radiation treatment performed by the treatment head, the method includes:
when the treatment head is positioned in a sampling area on the applicator, controlling the image acquisition equipment to acquire an image of the upper end face of the applicator in real time;
comparing the model data with the target model data under the condition that the image feature data corresponding to the feature tag exists in the image;
in the case where the model data is not identical to the target model data, the treatment head is prohibited from performing radiation treatment.
In an embodiment of the present application, the feature tag further includes a number of uses of the applicator, and in a case where the model data is different from the target model data, prohibiting the treatment head from performing the radiation treatment further includes: comparing the number of uses with a threshold number of uses of the applicator; in the case that the model data is not identical to the target model data and/or the number of uses is greater than or equal to the number of uses threshold, the treatment head is prohibited from performing radiation treatment and indication information is sent to indicate the operator.
In an embodiment of the application, the method further comprises: in the case where the model data is the same as the target model data and the number of uses is less than the number of uses threshold, the treatment head is allowed to perform radiation treatment.
In an embodiment of the present application, the bottom end of the treatment head further includes a light emitting device for indicating an effective field of view of the image capturing device, the upper end face of the applicator further includes an annular pattern centered on the center of the upper end face, and the method further includes: before the treatment head is positioned in the sampling area, controlling the light emitting device to emit light rays representing a circular graph or points representing a circular shape towards the lower part of the bottom end of the treatment head; and under the condition that the interval distance between the circle center of the light ray and the circle center of the annular pattern is smaller than or equal to a preset distance threshold value or the diameter of the light ray and the diameter of the annular pattern are smaller than or equal to a preset difference threshold value, determining that the treatment head is in a sampling area, so that an image acquired by the image acquisition equipment comprises the upper end face of the applicator.
In an embodiment of the application, the method further comprises: in the case where the treatment head is in the sampling region and it is determined that no image feature data exists in the image, the treatment head is prohibited from performing radiation treatment, and instruction information is issued to indicate the operator.
In an embodiment of the present application, in a case where it is determined that image feature data corresponding to a feature tag exists in an image, comparing model data with target model data includes: carrying out gray processing on the image to obtain a gray image; inputting the gray level image into a deep learning model to output the prediction probability of the image characteristic data in the image through the deep learning model; and under the condition that the prediction probability is greater than or equal to the preset probability, determining that image feature data corresponding to the feature tag exists in the image so as to compare the model data with the target model data.
A second aspect of the application provides a processor configured to perform the above-described method for preventing misuse of a applicator.
A third aspect of the application provides an apparatus for preventing misuse of a applicator, comprising:
a radiation therapy device including a therapy head;
the image acquisition equipment is arranged at the bottom end of the treatment head and is used for acquiring images of the upper end face of the applicator;
the upper end face of the applicator is embedded with a characteristic tag comprising model data of the applicator, and the applicator is used for radiotherapy executed by a treatment head;
a processor configured to perform the above-described method for preventing applicator misuse.
In one embodiment, the means for preventing misuse of the applicator further comprises:
the light emitting device is arranged at the bottom end of the treatment head, takes the center of the image acquisition equipment as the center of a circle and is used for emitting light rays representing a circular pattern or points representing a circle towards the lower part of the bottom end of the treatment head;
the annular pattern is marked on the upper end face of the applicator, and the annular pattern is used for marking the position of the upper end face of the applicator by taking the center of the upper end face of the applicator as the center of a circle.
A fourth aspect of the application provides a machine-readable storage medium having instructions stored thereon, which when executed by a processor, cause the processor to be configured to perform the method for preventing a treatment applicator as described above.
Through the technical scheme, the image acquisition equipment is arranged at the bottom end of the treatment head of the radiotherapy equipment, and the characteristic tag comprising model data of the applicator is embedded into the upper end face of the applicator. When the treatment head is positioned in a sampling area on the applicator, controlling the image acquisition equipment to acquire an image of the upper end face of the applicator in real time; comparing the model data with the target model data under the condition that the image feature data corresponding to the feature tag exists in the image; in the case where the model data is not identical to the target model data, the treatment head is prohibited from performing radiation treatment. The device can be quickly identified, so that the device is prevented from being misused in the radiotherapy process, and the safety of the radiotherapy is improved.
Additional features and advantages of embodiments of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the embodiments of the application. In the drawings:
FIG. 1 schematically illustrates an application environment diagram of a method for preventing applicator misuse in accordance with an embodiment of the present application;
FIG. 2 schematically illustrates a flow diagram of a method for preventing applicator misuse in accordance with an embodiment of the present application;
FIG. 3 schematically illustrates a schematic view of a radiation treatment apparatus and applicator according to an embodiment of the present application;
FIG. 4 schematically illustrates a block diagram of an apparatus for preventing applicator misuse in accordance with an embodiment of the present application;
fig. 5 schematically shows an internal structural view of a computer device according to an embodiment of the present application.
Reference numerals
110-radiotherapy equipment, 111-treatment head, 112-mechanical arm, 120-applicator, 130-image acquisition equipment, 310-light emitting device, 320-treatment head, 330-image acquisition equipment, 340-cylindrical applicator, 350-bolt, 360-visual guide plate, 10-radiotherapy equipment, 20-image acquisition equipment, 30-applicator and 40-processor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it should be understood that the detailed description described herein is merely for illustrating and explaining the embodiments of the present application, and is not intended to limit the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The method for preventing the misuse of the applicator provided by the application can be applied to an application environment shown in fig. 1. The radiation therapy device 110 refers to medical electron accelerators and other radiation sources and radiation apparatus that produce radiation necessary for radiation therapy. In particular, an X-band standing wave accelerating tube may be employed, an electron beam with high dose rate at energies on the order of MeV (Million electron Volts, meV). The radiation therapy device 110 includes a therapy head 111 and a robotic arm 112. The treatment head is used for emitting rays. Because the organs of the tumor are different, the treatment head needs multidimensional and multi-angle movement for the treatment. The mechanical arm connected with the treatment head can be adjusted to enable the treatment head to move in a large angle range, the movement precision is high, and the radiation treatment can be accurately carried out on different treatment positions. And, the mechanical arm can also realize the storage of the treatment head, and the space occupation of the storage state of the equipment is reduced. The spherical applicator can enable the electron beam to form uniform dose irradiation on a non-plane, so that the purpose of radiotherapy of the spheroidal tumor bed and tumors in the natural cavity of a human body is achieved. The cylindrical applicator can perform two-dimensional modulation on the electron beam, so that the electron beam is uniformly distributed in the cylindrical applicator along the radial direction, and a two-dimensional plane irradiation field which is conformal with the target irradiation area is formed. The image acquisition device 130 is mounted at the bottom of the treatment head, and can capture images of the area under the treatment head and acquire characteristic images of the applicators, so that the treatment head 111 and the applicators 120 can be precisely aligned to perform the related operations of radiation treatment.
Fig. 2 schematically shows a flow chart of a method for preventing misuse of a applicator according to an embodiment of the application. As shown in fig. 2, in an embodiment of the present application, there is provided a method for preventing misuse of a therapeutic apparatus, which is mainly exemplified by the application of the method to the application environment in fig. 1, the bottom end of a treatment head of a radiotherapy apparatus is provided with an image acquisition apparatus, an upper end face of the therapeutic apparatus is embedded with a feature tag including model data of the therapeutic apparatus, and the therapeutic apparatus is used for performing radiotherapy by the treatment head, the method includes:
s202, when a treatment head is positioned in a sampling area on a treatment applicator, controlling an image acquisition device to acquire an image of the upper end face of the treatment applicator in real time;
s204, comparing the model data with the target model data under the condition that the image feature data corresponding to the feature tag exists in the image;
s206, in the case that the model data is different from the target model data, the treatment head is prohibited from executing the radiotherapy.
The image acquisition device can be a camera, a video camera, a scanner and other devices with photographing functions. The model data of the applicators comprise data of the types, the sizes and the like of the applicators. For example, cylindrical applicators have dimensions of 100mm, 90mm, 80mm, 70mm, 60mm, 50mm, etc., and the radiation can be adjusted to different sizes of irradiation fields. The signature tag contains identity information of the applicators, which can be used to distinguish between applicators of different types and sizes. The feature tag may be a two-dimensional code, bar code, special pattern, etc. In order to prevent misuse of the applicator, the processor may control the image acquisition device to acquire an image of the upper end surface of the applicator in real time while the treatment head is in the sampling area on the applicator. The sampling area refers to the area where the treatment head is located when the image acquired by the image acquisition device can comprise the upper end face of the applicator. As shown in fig. 1, the upper end of the applicator may be embedded with a feature tag. The processor may then identify the image to determine whether image feature data corresponding to the feature tag is present in the image. The image feature data refers to data such as a dot-line feature, a texture feature, a color feature, or a statistical feature related to the feature tag. When the image feature data exists in the image, the acquired frame image is indicated to have the feature label, and the processor can compare the model data with the target model data, so that whether the currently used applicator is an actually required applicator can be determined. The nominal model data refers to model data applicable to the applicator selected for the current radiation therapy. In the event that the model data is not the same as the target model data, indicating that the currently used applicator is not the same as the selected applicator, the processor may disable the treatment head from performing radiation treatment. If an incorrect type of applicator is misused, the therapeutic effect will be affected and there will be a risk of harming the health of the patient.
In one embodiment, the feature tag further includes a number of uses of the applicator, and in the event the model data is not the same as the target model data, disabling the treatment head from performing radiation treatment further includes: comparing the number of uses with a threshold number of uses of the applicator; in the case that the model data is not identical to the target model data and/or the number of uses is greater than or equal to the number of uses threshold, the treatment head is prohibited from performing radiation treatment and indication information is sent to indicate the operator.
The identity information contained in the feature tag may also include the number of uses of the applicator. The service life of the applicator is limited, and if the number of uses exceeds the threshold number of uses, the effect of use is reduced or disabled, thereby easily causing medical accidents. The usage number threshold value refers to the number of usable times specified by the service life. Therefore, the processor can compare the model data with the target model data and also can compare the use times with the use times threshold of the applicator. If the model data is not the same as the target model data and/or the number of uses is greater than or equal to the number of uses threshold, the processor may prohibit the treatment head from performing radiation treatment. Specifically, when the used applicator is inconsistent with the selected applicator, the processor will send a signal to stop moving once to the treatment head and send a warning message to the operator's operation interface, and at the same time, prevent the treatment head from coming out of the beam, and prevent the operator or the radiotherapy equipment from using the wrong applicator to perform radiotherapy. After the operator releases the erroneous operation, the operator can control the treatment head to release the movement-prohibited state of the treatment head by means of the button or the handle, and the above-described applicator identification operation is performed again. Thus, the operator can know the misuse information of the applicator to use the correct applicator for radiation treatment.
In one embodiment, the method further comprises: in the case where the model data is the same as the target model data and the number of uses is less than the number of uses threshold, the treatment head is allowed to perform radiation treatment.
If the model data is the same as the target model data and the number of uses is less than the number of times threshold, indicating that the applicator being used is the same as the selected applicator and the use is in compliance, the processor may allow the treatment head to perform radiation treatment. Specifically, based on the acquired image of the upper end face of the applicator, the treatment head and the applicator are further positioned so that the beam-out position of the treatment head is aligned with the applicator, whereby the next radiation treatment can be performed.
In one embodiment, the treatment head bottom end further comprises a light emitting device for indicating the effective field of view of the image acquisition device, the upper end face of the applicator further comprises an annular pattern centered on the center of the upper end face, and the method further comprises: before the treatment head is positioned in the sampling area, controlling the light emitting device to emit light rays representing a circular graph or points representing a circular shape towards the lower part of the bottom end of the treatment head; and under the condition that the interval distance between the circle center of the light ray and the circle center of the annular pattern is smaller than or equal to a preset distance threshold value or the diameter of the light ray and the diameter of the annular pattern are smaller than or equal to a preset difference threshold value, determining that the treatment head is in a sampling area, so that an image acquired by the image acquisition equipment comprises the upper end face of the applicator.
In order to determine whether the treatment head is in the sampling area, the image acquisition equipment is further controlled to acquire images, and the acquired images are identified to realize automatic soft docking positioning of the treatment head and the applicator. Or other positioning methods may be used. As shown in fig. 3, the light emitting device 310 is installed at the bottom end of the treating head 320 with the center of the image collecting apparatus 330 as the center. The light emitting device 310 may emit light to indicate the effective field of view of the image capture device 330. The cylindrical applicator 340 acts as an applicator. A vision guide 360 is fixed along the top cover (upper end surface) of the cylindrical applicator 340 by bolts 350. The vision guide 360 includes a ring pattern centered on the center of the upper end surface. The light emitting means 310 may be a red LED lamp emitting red LED light representing a circular pattern with the center of the image capturing device 330 as a center, indicating that the center of the treatment head 320 is in a sampling area if the red LED light coincides with the annular pattern of the vision guide 360, and the image captured by the image capturing device 330 can include the upper end surface of the cylindrical applicator 340. Because of a certain mechanical error, if the interval distance between the center of the red LED light and the center of the circle of the annular pattern is less than or equal to the preset distance threshold, it may be determined that the center of the treatment head 320 is in the sampling area, and the image collected by the image collecting device 330 may include the upper end surface of the cylindrical treatment device 340. The preset distance threshold value refers to an interval distance error value between the circle center of the red LED light and the circle center of the annular pattern when the image acquisition equipment acquires that the upper end face of the applicator exists. If the spacing distance is greater than the preset distance threshold, it indicates that the center of the treatment head 320 is not in the sampling area, the image acquired by the image acquisition device 330 cannot include the upper end surface of the cylindrical applicator 340, and the image acquired by the image acquisition device 330 does not include the feature tag. The light emitting device 310 may be replaced by three light sources emitting or characterizing light rays of a circular spot, and when the light rays characterizing the circular spot coincide with the annular pattern, it may be determined that the center of the treatment head 320 is in the sampling region. In another embodiment, the diameter of the light may also be determined, and if the difference between the diameter of the light and the diameter of the annular pattern is less than or equal to a preset difference threshold, then it may also be determined that the center of the treatment head 320 is in the sampling region. The preset difference threshold value refers to an error value of a difference value between the diameter of the light and the diameter of the annular pattern when the image acquisition equipment acquires that the upper end face of the applicator exists. Based on the acquired image of the upper end surface of the applicator, the treatment head and the applicator can be further positioned under the condition that the treatment head is determined to be in the sampling area, so that the beam outlet position of the treatment head is aligned with the applicator, and further radiation treatment can be performed.
In one embodiment, the method further comprises: and prohibiting the treatment head from executing radiation treatment when the treatment head is in the sampling area and the image characteristic data are not existed in the image.
And when the treatment head is not in the sampling area, the image acquisition equipment performs image acquisition in real time. If it is determined that the treatment head is already in the sampling area, but the image characteristic data is not yet present in the image, the fact that the characteristic label is not embedded on the used applicator is indicated. Then, the processor will not be able to identify the model data and number of uses of the applicator, and the treatment head should be prohibited from performing radiation treatment at this time, avoiding medical accidents due to misuse of the applicator.
In one embodiment, in a case where it is determined that image feature data corresponding to the feature tag exists in the image, comparing the model data with the target model data includes: carrying out gray processing on the image to obtain a gray image; inputting the gray level image into a deep learning model to output the prediction probability of the image characteristic data in the image through the deep learning model; and under the condition that the prediction probability is greater than or equal to the preset probability, determining that image feature data corresponding to the feature tag exists in the image so as to compare the model data with the target model data.
In the image processing process, data of three channels R, G, B are complex, and the processor can perform graying processing on the image to obtain a gray image. The gray level process is to unify the RGB values of each pixel point into the same value. The processor may input the grayscale image into a deep learning model to output a prediction probability of the image feature data being present in the image through the deep learning model. The preset probability corresponding to the predicted probability may be set to 90%. If the prediction probability is greater than or equal to 90%, the processor may determine that image feature data corresponding to the feature tag exists in the image. At this time, the presence of the feature tag in the image is explained. If the prediction probability is less than 90%, the processor may determine that no image feature data exists in the image and no feature tag exists in the image. When the feature tag is present in the image, the processor may compare the model data of the applicator to the target model data. Therefore, the operation compounding of the processor can be reduced, the operation efficiency of the processor is improved, and the identification result of the image is obtained rapidly and accurately.
Methods, apparatus, storage medium, and processors for preventing applicator misuse are provided. The bottom end of the treatment head of the radiotherapy equipment is provided with an image acquisition equipment and a light emitting device. The applicator is used for radiotherapy executed by the therapy head, the upper end face of the applicator is embedded with a characteristic tag comprising model data of the applicator, and the upper end face also comprises an annular pattern for positioning. The annular pattern of the upper end face of the applicator is irradiated by lamplight to align and position, so that the treatment head can move to a sampling area, the image acquisition equipment can acquire the image of the upper end face of the applicator, and the image of the clear characteristic label in the image can be acquired. When the treatment head is positioned in a sampling area on the applicator, the image acquisition equipment is controlled to acquire the image of the upper end face of the applicator in real time. The image is converted to a grayscale image and the probability of the feature tag being present in the image is predicted based on the deep learning model. And respectively comparing the model data with the target model data, the using times and the using times threshold value under the condition that the image feature data corresponding to the feature label exists in the image. And prohibiting the treatment head from executing the radiation treatment under the condition that the model data is different from the target model data and/or the using times are greater than or equal to the using times threshold value and the treatment head is in the sampling area and the image characteristic data is not existed in the image. In the case that the model data is the same as the target model data and the number of uses is less than the threshold number of uses, the applicator used is indicated to be correct. The radiation therapy can be accurately performed by further positioning the treatment head and applicator such that the exit beam position of the treatment head is aligned with the applicator. Therefore, the applicators can be quickly identified, and the applicators are prevented from being misused in the radiotherapy process. And the treatment head and the applicator are precisely positioned, so that the safety and the efficiency of radiotherapy are improved, and the occurrence of medical accidents is avoided.
FIG. 1 is a flow chart of a method for preventing applicator misuse in one embodiment. It should be understood that, although the steps in the flowchart of fig. 1 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 1 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of other steps or sub-steps of other steps.
In one embodiment, as shown in fig. 4, an apparatus for preventing misuse of an applicator is provided:
a radiation therapy device 10 including a therapy head;
the image acquisition equipment 20 is arranged at the bottom end of the treatment head and is used for acquiring images of the upper end face of the applicator;
a applicator 30, the upper end face of which is embedded with a characteristic tag including model data of the applicator, the applicator being used for radiation treatment performed by the treatment head;
processor 40 is configured to perform the method for preventing applicator misuse described above.
The radiation therapy device 10 includes a therapy head and a robotic arm. The image capturing device 20 may be a camera, video camera, still camera, scanner, or other device with a photographing function. Applicator 30 may be a cylindrical applicator, and the upper end of the applicator, i.e., the top cap of the cylindrical applicator, may be embedded with a feature tag. The feature tag may be a two-dimensional code, bar code, special pattern, etc. Processor 40 may control image acquisition device 20 to acquire images of the upper end surface of applicator 30 in real time while the treatment head is in the sampling region. The processor 40 may identify the image to determine whether image feature data corresponding to the feature tag is present in the image. In the event that image characteristic data is present in the image, processor 40 may compare the model data to the target model data so that it may be determined whether the currently used applicator 30 is the actual desired applicator. In the event that the model data is not the same as the target model data, indicating that the currently used applicator 30 is not the same as the selected applicator, then processor 40 may disable the treatment head from performing radiation treatment.
In one embodiment, the means for preventing misuse of the applicator further comprises: a light emitting device (not shown in the figure) which is arranged at the bottom end of the treatment head and takes the center of the image acquisition equipment as the center of a circle, and is used for emitting light rays representing a circular pattern or points representing a circle towards the lower part of the bottom end of the treatment head; the annular pattern (not shown in the figure) is marked on the upper end face of the applicator, and takes the center of the upper end face of the applicator as the center of a circle and is used for marking the position of the upper end face of the applicator.
The light emitting device is arranged at the bottom end of the treatment head and takes the center of the image acquisition equipment as the center of a circle. A visual guide plate is fixed along the top cover (upper end surface) of the cylindrical applicator through bolts. The vision guide plate comprises an annular pattern taking the center of the upper end surface as the center of a circle. The light emitting means may be a red LED lamp emitting red LED light representing a circular pattern or representing a circular spot with the center of the image capturing device as the center of the circle, and if the red LED light coincides with the annular pattern of the vision guide, the processor 40 may determine that the treatment head is in the sampling area, and the image captured by the image capturing device may include the upper end face of the applicator. If the separation distance between the center of the red LED light and the center of the annular pattern is less than or equal to the preset distance threshold, the processor 40 may determine that the treatment head is in the sampling region. If the separation distance is greater than the preset distance threshold, processor 40 determines that the treatment head is not in the sampling region and that the image acquired by image acquisition device 20 cannot include the upper end surface of applicator 30.
The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The kernel may be provided with one or more kernel parameters to implement a method for preventing applicator misuse.
The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.
An embodiment of the present application provides a storage medium having a program stored thereon, which when executed by a processor, implements the above-described method for preventing misuse of a applicator.
The embodiment of the application provides a processor for running a program, wherein the program runs to execute the method for preventing the misuse of a therapeutic device.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 5. The computer device includes a processor a01, a network interface a02, a memory (not shown) and a database (not shown) connected by a system bus. Wherein the processor a01 of the computer device is adapted to provide computing and control capabilities. The memory of the computer device includes internal memory a03 and nonvolatile storage medium a04. The nonvolatile storage medium a04 stores an operating system B01, a computer program B02, and a database (not shown in the figure). The internal memory a03 provides an environment for the operation of the operating system B01 and the computer program B02 in the nonvolatile storage medium a04. The database of the computer device is used to store data for the method of preventing misuse of the applicator. The network interface a02 of the computer device is used for communication with an external terminal through a network connection. The computer program B02, when executed by the processor a01, implements a method for preventing misuse of the applicator.
It will be appreciated by those skilled in the art that the structure shown in FIG. 5 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
The embodiment of the application provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes the following steps when executing the program: when the treatment head is positioned in a sampling area on the applicator, controlling the image acquisition equipment to acquire an image of the upper end face of the applicator in real time; comparing the model data with the target model data under the condition that the image feature data corresponding to the feature tag exists in the image; in the case where the model data is not identical to the target model data, the treatment head is prohibited from performing radiation treatment.
In one embodiment, the feature tag further includes a number of uses of the applicator, and in the event the model data is not the same as the target model data, disabling the treatment head from performing radiation treatment further includes: comparing the number of uses with a threshold number of uses of the applicator; in the case that the model data is not identical to the target model data and/or the number of uses is greater than or equal to the number of uses threshold, the treatment head is prohibited from performing radiation treatment and indication information is sent to indicate the operator.
In one embodiment, the method further comprises: in the case where the model data is the same as the target model data and the number of uses is less than the number of uses threshold, the treatment head is allowed to perform radiation treatment.
In one embodiment, the treatment head bottom end further comprises a light emitting device for indicating the effective field of view of the image acquisition device, the upper end face of the applicator further comprises an annular pattern centered on the center of the upper end face, and the method further comprises: before the treatment head is positioned in the sampling area, controlling the light emitting device to emit light rays representing a circular graph or points representing a circular shape towards the lower part of the bottom end of the treatment head; and under the condition that the interval distance between the circle center of the light ray and the circle center of the annular pattern is smaller than or equal to a preset distance threshold value or the diameter of the light ray and the diameter of the annular pattern are smaller than or equal to a preset difference threshold value, determining that the treatment head is in a sampling area, so that an image acquired by the image acquisition equipment comprises the upper end face of the applicator.
In one embodiment, the method further comprises: in the case where the treatment head is in the sampling region and it is determined that no image feature data exists in the image, the treatment head is prohibited from performing radiation treatment, and instruction information is issued to indicate the operator.
In one embodiment, in a case where it is determined that image feature data corresponding to the feature tag exists in the image, comparing the model data with the target model data includes: carrying out gray processing on the image to obtain a gray image; inputting the gray level image into a deep learning model to output the prediction probability of the image characteristic data in the image through the deep learning model; and under the condition that the prediction probability is greater than or equal to the preset probability, determining that image feature data corresponding to the feature tag exists in the image so as to compare the model data with the target model data.
The application also provides a computer program product adapted to perform, when executed on a data processing device, a program initialized with the method steps of: when the treatment head is positioned in a sampling area on the applicator, controlling the image acquisition equipment to acquire an image of the upper end face of the applicator in real time; comparing the model data with the target model data under the condition that the image feature data corresponding to the feature tag exists in the image; in the case where the model data is not identical to the target model data, the treatment head is prohibited from performing radiation treatment.
In one embodiment, the feature tag further includes a number of uses of the applicator, and in the event the model data is not the same as the target model data, disabling the treatment head from performing radiation treatment further includes: comparing the number of uses with a threshold number of uses of the applicator; in the case that the model data is not identical to the target model data and/or the number of uses is greater than or equal to the number of uses threshold, the treatment head is prohibited from performing radiation treatment and indication information is sent to indicate the operator.
In one embodiment, the method further comprises: in the case where the model data is the same as the target model data and the number of uses is less than the number of uses threshold, the treatment head is allowed to perform radiation treatment.
In one embodiment, the treatment head bottom end further comprises a light emitting device for indicating the effective field of view of the image acquisition device, the upper end face of the applicator further comprises an annular pattern centered on the center of the upper end face, and the method further comprises: before the treatment head is positioned in the sampling area, controlling the light emitting device to emit light rays representing a circular graph or points representing a circular shape towards the lower part of the bottom end of the treatment head; and under the condition that the interval distance between the circle center of the light ray and the circle center of the annular pattern is smaller than or equal to a preset distance threshold value or the diameter of the light ray and the diameter of the annular pattern are smaller than or equal to a preset difference threshold value, determining that the treatment head is in a sampling area, so that an image acquired by the image acquisition equipment comprises the upper end face of the applicator.
In one embodiment, the method further comprises: in the case where the treatment head is in the sampling region and it is determined that no image feature data exists in the image, the treatment head is prohibited from performing radiation treatment, and instruction information is issued to indicate the operator.
In one embodiment, in a case where it is determined that image feature data corresponding to the feature tag exists in the image, comparing the model data with the target model data includes: carrying out gray processing on the image to obtain a gray image; inputting the gray level image into a deep learning model to output the prediction probability of the image characteristic data in the image through the deep learning model; and under the condition that the prediction probability is greater than or equal to the preset probability, determining that image feature data corresponding to the feature tag exists in the image so as to compare the model data with the target model data.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. A method for preventing misuse of an applicator for radiation therapy performed by a treatment head of a radiation therapy apparatus, wherein an image acquisition apparatus is mounted at a bottom end of the treatment head, and wherein a feature tag including model data of the applicator is embedded in an upper end face of the applicator, the applicator being for radiation therapy performed by the treatment head, the method comprising:
when the treatment head is positioned in a sampling area on the applicator, controlling the image acquisition equipment to acquire an image of the upper end face of the applicator in real time;
comparing the model data with target model data under the condition that the image feature data corresponding to the feature tag exists in the image;
and prohibiting the treatment head from executing the radiation treatment in the condition that the model data is different from the target model data.
2. The method for preventing applicator misuse according to claim 1, wherein the feature tag further comprises a number of uses of the applicator, and wherein disabling the therapy head from performing the radiation therapy if the model data is not the same as the target model data further comprises:
comparing the number of uses with a threshold number of uses of the applicator;
and in the case that the model data is different from the target model data and/or the use number is greater than or equal to the use number threshold, prohibiting the treatment head from executing the radiotherapy and sending out indication information to indicate an operator.
3. The method for preventing applicator misuse according to claim 2, further comprising:
and allowing the treatment head to execute radiation treatment when the model data is the same as the target model data and the using times are smaller than the using times threshold value.
4. The method for preventing misuse of an applicator of claim 1 wherein the treatment head bottom end further comprises a light emitting device for indicating the effective field of view of the image acquisition device, the applicator upper end further comprising a ring pattern centered at the center of the upper end, the method further comprising:
before the treatment head is positioned in the sampling area, controlling the light emitting device to emit light rays representing a circular graph or points representing a circular shape towards the lower part of the bottom end of the treatment head;
and under the condition that the interval distance between the circle center of the light ray and the circle center of the annular pattern is smaller than or equal to a preset distance threshold value or the diameter of the light ray and the diameter of the annular pattern are smaller than or equal to a preset difference threshold value, determining that the treatment head is positioned in the sampling area, so that the image acquired by the image acquisition equipment has the upper end face comprising the applicator.
5. The method for preventing applicator misuse according to claim 1, further comprising:
and when the treatment head is positioned in the sampling area and the image characteristic data is determined not to exist in the image, prohibiting the treatment head from executing radiation treatment and sending indication information to indicate an operator.
6. The method for preventing applicator misuse according to claim 1, wherein said comparing the model data with target model data in the case where it is determined that there is image feature data corresponding to the feature tag in the image comprises:
carrying out gray processing on the image to obtain a gray image;
inputting the gray level image into a deep learning model to output the prediction probability of the image characteristic data in the image through the deep learning model;
and under the condition that the prediction probability is greater than or equal to a preset probability, determining that image feature data corresponding to the feature tag exists in the image, so as to compare the model data with target model data.
7. A processor configured to perform the method for preventing applicator misuse according to any one of claims 1 to 6.
8. A device for preventing misuse of an applicator, comprising:
a radiation therapy device including a therapy head;
the image acquisition equipment is arranged at the bottom end of the treatment head and is used for acquiring images of the upper end face of the applicator;
the upper end face of the applicator is embedded with a characteristic tag comprising model data of the applicator, and the applicator is used for radiotherapy executed by the treatment head; and
the processor of claim 7.
9. The device for preventing applicator misuse of claim 8, further comprising:
the light emitting device is arranged at the bottom end of the treatment head, takes the center of the image acquisition equipment as the center of a circle and is used for emitting light rays representing a circular pattern or points representing a circle towards the lower part of the bottom end of the treatment head;
the annular pattern is marked on the upper end face of the applicator, and the annular pattern is used for marking the position of the upper end face of the applicator by taking the center of the upper end face of the applicator as the center of a circle.
10. A machine-readable storage medium having instructions stored thereon, which when executed by a processor cause the processor to be configured to perform the method for preventing misuse of a applicator according to any of claims 1 to 6.
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