CN112354086A - Tumor radiotherapy positioning adjustment method and device and computer equipment - Google Patents
Tumor radiotherapy positioning adjustment method and device and computer equipment Download PDFInfo
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- CN112354086A CN112354086A CN202011107566.6A CN202011107566A CN112354086A CN 112354086 A CN112354086 A CN 112354086A CN 202011107566 A CN202011107566 A CN 202011107566A CN 112354086 A CN112354086 A CN 112354086A
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- 238000000034 method Methods 0.000 title claims abstract description 141
- 238000001959 radiotherapy Methods 0.000 title claims abstract description 126
- 206010028980 Neoplasm Diseases 0.000 title claims abstract description 102
- 230000005855 radiation Effects 0.000 claims description 24
- 238000005286 illumination Methods 0.000 claims description 12
- 230000002285 radioactive effect Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 8
- 238000003384 imaging method Methods 0.000 claims description 6
- 238000007408 cone-beam computed tomography Methods 0.000 claims description 5
- 238000012795 verification Methods 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000002591 computed tomography Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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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
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
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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
- A61N5/1069—Target adjustment, e.g. moving the patient support
- A61N5/107—Target adjustment, e.g. moving the patient support in real time, i.e. during treatment
Abstract
The invention discloses a method and a device for adjusting the positioning of tumor radiotherapy, and computer equipment, relates to the technical field of medical treatment, and mainly aims to verify and adjust the positioning of tumor radiotherapy in real time in the treatment process of a patient and ensure the treatment effect of the patient. The method comprises the following steps: acquiring position information generated by target treatment equipment in the treatment process of a patient; comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result; and adjusting the position of the patient in the treatment process according to the comparison result. The invention is mainly suitable for the positioning verification and adjustment of tumor radiotherapy.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a method and a device for adjusting the positioning in tumor radiotherapy and computer equipment.
Background
Tumor radiotherapy is a local treatment method for treating tumors by utilizing radioactive rays, and in order to ensure the treatment effect of a patient, the positioning verification of tumor radiotherapy is generally required to be carried out, so that the treatment of the patient is prevented from being influenced due to inaccurate positioning.
At present, before the treatment of a patient, the positioning verification of tumor radiotherapy is generally carried out according to a radiotherapy plan given by a physicist, and if the positioning is not accurate, the positioning adjustment is carried out. However, the positioning verification and adjustment can only be performed before the treatment of the patient, and the positioning verification cannot be performed in real time in the treatment process of the patient, so that the condition that the positioning of the patient is inaccurate in the treatment process cannot be found in time, and the positioning cannot be adjusted in time, so that the treatment effect of the patient is affected.
Disclosure of Invention
In view of this, the present invention provides a method, an apparatus and a computer device for adjusting the positioning for tumor radiotherapy, and mainly aims to perform positioning verification and adjustment for tumor radiotherapy in real time during the treatment of a patient, so as to ensure the treatment effect of the patient.
According to an aspect of the present invention, there is provided a method for adjusting a tumor radiotherapy positioning, comprising:
acquiring position information generated by target treatment equipment in the treatment process of a patient;
comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and adjusting the position of the patient in the treatment process according to the comparison result.
According to another aspect of the present invention, there is provided a tumor radiotherapy positioning adjustment device, comprising:
the acquisition unit is used for acquiring position information generated by the target treatment equipment in the treatment process of the patient;
the comparison unit is used for comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and the adjusting unit is used for adjusting the position of the patient in the treatment process according to the comparison result.
According to yet another aspect of the invention, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
acquiring position information generated by target treatment equipment in the treatment process of a patient;
comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and adjusting the position of the patient in the treatment process according to the comparison result.
According to a further aspect of the present invention, there is provided a computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the program:
acquiring position information generated by target treatment equipment in the treatment process of a patient;
comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and adjusting the position of the patient in the treatment process according to the comparison result.
Compared with the existing positioning verification and adjustment mode of tumor radiotherapy before treatment of a patient, the positioning adjustment method, the positioning adjustment device and the computer equipment for tumor radiotherapy provided by the invention can acquire the position information generated by target treatment equipment in the treatment process of the patient; comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result; meanwhile, the positioning of the patient in the treatment process is adjusted according to the comparison result, so that the positioning verification of tumor radiotherapy can be carried out in real time in the treatment process of the patient, the condition of inaccurate positioning can be found in time, the positioning adjustment is carried out, and the treatment effect of the patient is ensured.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart illustrating a method for adjusting a tumor radiotherapy setup according to an embodiment of the present invention;
FIG. 2 is a flow chart of another exemplary method for adjusting the radiotherapy placement of tumor according to the present invention;
fig. 3 is a schematic structural diagram illustrating a setup adjustment apparatus for tumor radiotherapy according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram illustrating another radiotherapy setup adjusting apparatus for tumor according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As described in the background, at present, before the treatment of a patient, the setup verification of tumor radiotherapy is usually performed according to the radiotherapy plan given by the physicist, and if the setup is not accurate, the setup adjustment is performed. However, the positioning verification and adjustment can only be performed before the treatment of the patient, and the positioning verification cannot be performed in real time in the treatment process of the patient, so that the condition that the positioning of the patient is inaccurate in the treatment process cannot be found in time, and the positioning cannot be adjusted in time, so that the treatment effect of the patient is affected.
In order to solve the above problems, a positioning verification and adjustment are performed in real time during a treatment process of a patient, an embodiment of the present invention provides a method for adjusting positioning in tumor radiotherapy, as shown in fig. 1, the method includes:
101. position information generated by the target treatment device during treatment of the patient is acquired.
Wherein the target treatment device comprises an electron linear accelerator, an Electronic Portal Imaging Device (EPID), and a computed tomography (CBCT), and the position information comprises: bed position information, a radioactive ray angle, a frame angle, tumor position information in a radiotherapy image generated by EPID, tumor position information in a radiotherapy image generated by CBCT and the like in the treatment log of the electronic linear accelerator, for the embodiment of the invention, in order to verify the positioning and adjust the positioning in real time in the treatment process of a patient, the position information which is generated by a target treatment device and related to the patient in the treatment process of the patient needs to be obtained, so that whether the positioning of the patient is accurate in the actual treatment process is verified according to the captured position information, if the positioning is not accurate, the positioning adjustment needs to be carried out in time, for example, a treatment log can be generated in the operation process of the electronic linear accelerator, parameters such as the radioactive ray angle, the bed position information, the frame angle and the like exist in the treatment log, and can reflect the situation of the patient in the actual treatment process by comparing the parameters with all parameters in the plan, whether the positioning is accurate in the treatment process of the patient can be verified, and if the positioning is not accurate, the positioning is timely adjusted, so that the positioning condition of the patient can be monitored in real time in the treatment process of the patient, and the positioning is timely adjusted.
102. And comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result.
The radiotherapy plan records preset position information related to a patient, such as preset bed information, a preset radioactive ray angle, position information of a tumor in an original image and the like, and by comparing the position information generated by the target treatment equipment in the treatment process of the patient with the preset position information in the radiotherapy plan, whether the patient is accurately placed in the actual treatment process can be verified, and if the deviation between the position information generated in the treatment process of the patient and the preset position information in the radiotherapy plan is larger than the preset deviation, the situation that the patient is not accurately placed in the treatment process is indicated, and the placement adjustment is needed; if the deviation between the position information generated in the treatment process of the patient and the preset position information in the radiotherapy plan is smaller than or equal to the preset deviation, the accurate positioning in the treatment process of the patient is indicated, the positioning adjustment is not needed, therefore, the positioning verification can be carried out in real time in the treatment process of the patient, and the positioning adjustment can be carried out in time under the condition of inaccurate positioning, so that the treatment effect of the patient is ensured.
103. And adjusting the position of the patient in the treatment process according to the comparison result.
For the embodiment of the invention, after the position information generated by the target treatment equipment in the treatment process of the patient is captured in real time, the position information verifies that the position of the patient is inaccurate in the treatment process, the position adjustment needs to be carried out in time so as to avoid influencing the treatment of the patient, and the position adjustment of the patient can be carried out according to the position deviation of the patient in the treatment process.
Compared with the existing mode of carrying out the positioning verification and adjustment of tumor radiotherapy before the treatment of a patient, the positioning adjustment method for the tumor radiotherapy provided by the embodiment of the invention can acquire the position information generated by target treatment equipment in the treatment process of the patient; comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result; meanwhile, the positioning of the patient in the treatment process is adjusted according to the comparison result, so that the positioning verification of tumor radiotherapy can be carried out in real time in the treatment process of the patient, the condition of inaccurate positioning can be found in time, the positioning adjustment is carried out, and the treatment effect of the patient is ensured.
Further, in order to better explain the process of performing pose verification and adjustment in real time during the above-mentioned patient treatment process, as a refinement and extension of the above-mentioned embodiment, another method for adjusting pose in tumor radiotherapy is provided in an embodiment of the present invention, as shown in fig. 2, the method includes:
201. and acquiring the position information of the tumor in the first radiotherapy image generated by the electronic portal imaging equipment.
For the embodiment of the invention, in the treatment process of the patient, the positioning in the treatment process of the patient can be verified by collecting the position information which is generated by different treatment equipment and is related to the patient, and the positioning adjustment can be carried out in time, for example, in the treatment process of the patient, the first radiotherapy image collected by the EPID is obtained in real time, and the position information of the tumor of the patient in the first radiotherapy image is determined, so that the position information of the tumor in the treatment process of the patient is compared with the position information of the tumor in the radiotherapy plan original image, whether the positioning of the patient in the treatment process is accurate can be verified through the comparison result, and the positioning can be adjusted in time once the positioning is inaccurate, so that the treatment of the patient is not influenced.
202. And calculating a first tumor position deviation between the position information of the tumor in the first radiotherapy image and the position information of the tumor in the original image.
For the embodiment of the invention, the position information of the tumor of the patient is recorded in the original image of the radiotherapy plan, the position information of the tumor in the first radiotherapy image acquired by the EPID is compared with the position information of the tumor in the original image, the first tumor position deviation between the position information of the tumor in the first radiotherapy image and the position information of the tumor in the original image is calculated, and the positioning condition of the patient in the actual treatment process can be reflected through the first tumor position deviation.
203. And if the first tumor position deviation is greater than the preset tumor position deviation, adjusting the positioning of the patient in the treatment process according to the first tumor position deviation.
For the embodiment of the invention, if the tumor position deviation of the patient in the actual treatment process is within the allowable tolerance range, the patient is considered to be accurately positioned in the treatment process, otherwise, the patient is considered to be inaccurately positioned in the treatment process, and specifically, if the first tumor position deviation is less than or equal to the preset tumor position deviation, the positioning of the patient in the treatment process is accurate; if the first tumor position deviation is larger than the preset tumor position deviation, the patient is inaccurate in positioning in the treatment process, the positioning needs to be adjusted in time, the patient treatment is prevented from being influenced, and the positioning in the treatment process of the patient can be adjusted according to the first tumor position deviation.
Further, in addition to the setup verification based on the first radiotherapy image generated by the EPID, the setup during the patient treatment can be verified based on the bed information, the radiation angle, the gantry angle, and the like in the treatment log of the electronic linac, and specifically, in the treatment process of a patient, acquiring a treatment log of an electronic linear accelerator in real time, capturing parameter values such as bed information, a radioactive ray angle and a frame angle in the treatment log, then comparing the acquired parameter values with preset parameter values in a radiotherapy plan, specifically, comparing the bed information in the treatment process of the patient with the preset bed information in the radiotherapy plan, calculating the bed deviation between the bed information in the treatment process of the patient and the preset bed information, and if the bed deviation is less than or equal to the preset bed deviation, determining that the positioning in the treatment process of the patient is accurate; if the bed deviation is larger than the preset bed deviation, the fact that the patient is not accurately positioned in the treatment process is determined, positioning adjustment needs to be carried out so as to avoid influencing the treatment of the patient, and the positioning in the treatment process of the patient can be adjusted according to the calculated bed deviation.
Furthermore, the radiation angle in the treatment process of the patient can be compared with a preset radiation angle in the radiotherapy plan, the angle deviation between the radiation angle in the treatment process of the patient and the preset radiation angle in the radiotherapy plan is calculated, and if the angle deviation is smaller than or equal to the preset angle deviation, the accurate positioning in the treatment process of the patient is determined; if the angle deviation is larger than the preset angle deviation, the situation that the placing position in the patient treatment pot is inaccurate is determined, the placing position needs to be adjusted, so that the treatment of the patient is not influenced, and the placing position in the treatment process of the patient can be adjusted according to the calculated angle deviation. Similarly, the gantry angle in the treatment log can be used to verify the placement of the patient during treatment. In the present invention, the bed information, the radiation angle, the frame angle, and other parameter values may be used to perform the positioning verification, or several parameters may be combined to perform the positioning verification.
Further, the position information in a second radiotherapy image generated by the CBCT can be utilized to verify whether the positioning of the patient in the treatment process is accurate, specifically, in the treatment process of the patient, the second radiotherapy image generated by the CBCT is collected in real time, the position information of the tumor in the second radiotherapy image is determined, then the position information of the tumor in the second radiotherapy image is compared with the position information of the tumor in the radiotherapy plan original image, the second tumor position deviation between the position information of the tumor in the second radiotherapy image and the position information of the tumor in the original image is calculated, and if the second tumor position deviation is smaller than or equal to the preset tumor position deviation, the positioning of the patient in the treatment process is accurate; if the second tumor position deviation is larger than the preset tumor position deviation, the patient is inaccurate in positioning in the treatment process, the positioning needs to be adjusted in time, the treatment of the patient is avoided being influenced, and the positioning in the treatment process of the patient can be adjusted according to the second tumor position deviation.
Meanwhile, the embodiment of the invention can verify and adjust the positioning of the patient in the treatment process, and can analyze the radiotherapy dose in the treatment process of the patient, and the method further comprises the following steps: obtaining dose values corresponding to all areas on a plurality of first radiotherapy images; superposing the dose values corresponding to the regions on the first radiotherapy images to obtain the total dose values corresponding to the regions, and comparing the total dose values corresponding to the regions with the preset dose values corresponding to the regions in the radiotherapy plan; and sending out early warning information according to the comparison result corresponding to each region. Further, the sending out early warning information according to the comparison result corresponding to each region includes: calculating the actual gamma passing rate of the radioactive rays by using a preset Monte Carlo algorithm according to the comparison result corresponding to each region; and if the actual gamma passing rate is less than the preset gamma passing rate, sending out early warning information. Each region on the first radiotherapy image corresponds to each acquisition region on the EPID acquisition plate, and the size of each acquisition region is related to the granularity of division of the EPID acquisition plate.
Specifically, when a patient is treated, the EPID acquisition board acquires the illumination intensity and the illumination size of radioactive rays at preset time intervals, dose values corresponding to all acquisition regions are determined according to the acquired illumination intensity and the illumination size of all the acquisition regions on the EPID acquisition board during each acquisition, then first radiotherapy images of the patient are generated according to the dose values corresponding to all the acquisition regions, a first radiotherapy image of one patient can be generated during each acquisition of the EPID, the number of the first radiotherapy images acquired during the treatment of the patient can be determined according to the acquisition frequency of the EPID and the irradiation duration of the radioactive rays of the patient during the treatment of the patient, the acquired first radiotherapy images and the dose values corresponding to all the regions in the first radiotherapy images are stored, and when the dose of the patient during the treatment of the patient needs to be analyzed, the first radiotherapy images of the patient and the dose corresponding to different regions in all the first radiotherapy images are captured Measuring the quantity value, then overlapping the dose value corresponding to each region, wherein the plurality of first radiotherapy images comprise a plurality of first radiotherapy images under different radiation field angles, overlapping the dose value corresponding to each region on the plurality of radiotherapy images under different radiation field angles to obtain the total dose value corresponding to each region under different radiation field angles, further comparing the total dose value corresponding to each region under different radiation field angles with the preset dose value corresponding to each region under different radiation field angles in the radiotherapy plan, determining the comparison result corresponding to each region under different radiation field angles, calculating the actual gamma passage rate of the radiation under different radiation field angles according to the comparison result corresponding to each region under different radiation field angles, and based on the calculated actual gamma passage rate of the radiation under different radiation field angles, determining the overall gamma passage rate of the radioactive rays; if whole gamma percent of passage is less than predetermineeing gamma percent of passage, then send early warning information, the doctor accepts this early warning information, according to the actual distribution condition of radiotherapy dose when the patient is treated, can adjust the radiotherapy plan or adjust the pendulum position when treating the patient, can know the distribution condition of radiotherapy dose among the patient treatment process from this, and verify the rationality of radiotherapy dose among the patient actual treatment process according to radiotherapy dose distribution condition, and in time send early warning information under the unreasonable condition of radiotherapy dose, in order to avoid influencing patient's treatment.
Compared with the existing positioning verification and adjustment mode of tumor radiotherapy before treatment of a patient, the positioning adjustment method for tumor radiotherapy provided by the embodiment of the invention can acquire the position information generated by target treatment equipment in the treatment process of the patient; comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result; meanwhile, the positioning of the patient in the treatment process is adjusted according to the comparison result, so that the positioning verification of tumor radiotherapy can be carried out in real time in the treatment process of the patient, the condition of inaccurate positioning can be found in time, the positioning adjustment is carried out, and the treatment effect of the patient is ensured.
Further, as a specific implementation of fig. 1, an embodiment of the present invention provides a setup adjustment apparatus for tumor radiotherapy, as shown in fig. 3, the apparatus includes: an acquisition unit 31, a comparison unit 32 and an adjustment unit 33.
The acquisition unit 31 may be configured to acquire position information generated by the target treatment device during treatment of the patient. The acquisition unit 31 is a main functional module of the device for acquiring the position information generated by the target treatment device during the treatment of the patient.
The comparing unit 32 may be configured to compare the position information with preset position information in the radiotherapy plan of the patient, so as to obtain a comparison result. The comparison unit 32 is a main functional module of the apparatus that compares the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result, and is also a core functional module of the apparatus.
The adjusting unit 33 may be configured to adjust the positioning during the treatment of the patient according to the comparison result. The adjusting unit 33 is a main functional module of the device for adjusting the positioning during the treatment of the patient according to the comparison result.
For the embodiment of the present invention, the position information includes bed information and a radiation angle in the treatment log of the electronic linac, and as shown in fig. 4, the comparison unit 32 may be specifically configured to calculate a bed deviation between the bed information and the preset bed information.
The adjusting unit 33 may be specifically configured to adjust the positioning position of the patient during the treatment process according to the deviation of the bed if the deviation of the bed is greater than the preset deviation of the bed.
The comparison unit 32 may be further configured to calculate an angle deviation between the radiation angle and the preset radiation angle.
The adjusting unit 33 may be further specifically configured to adjust the positioning during the treatment of the patient according to the angle deviation if the angle deviation is greater than the preset angle deviation.
Further, the position information includes position information of a tumor in the first radiotherapy image generated by the electronic portal imaging device, and the comparing unit 32 may be specifically configured to calculate a first tumor position deviation between the position information of the tumor in the first radiotherapy image and the position information of the tumor in the original image.
The adjusting unit 33 may be further specifically configured to adjust the positioning during the treatment of the patient according to the first tumor position deviation if the first tumor position deviation is greater than the preset tumor position deviation.
For an embodiment of the present invention, in order to analyze the radiation therapy dose during the treatment of the patient, the apparatus further comprises: a superposition unit 34 and an early warning unit 35.
The obtaining unit 31 may be further configured to obtain dose values corresponding to respective regions on the multiple first radiotherapy images.
The superimposing unit 34 may be configured to perform superimposing processing on the dose values corresponding to the respective regions on the multiple first radiotherapy images, so as to obtain a total dose value corresponding to the respective regions.
The comparing unit 32 may be further configured to compare the total dose value corresponding to each region with a preset dose value corresponding to each region in the radiotherapy plan.
The early warning unit 35 may be configured to send out early warning information according to the comparison result corresponding to each region.
Further, the early warning unit 35 includes a calculating module 351 and an early warning module 352, where the calculating module 351 may be configured to calculate an actual γ passage rate of the radiation by using a preset monte carlo algorithm according to the comparison result corresponding to each region.
The early warning module 352 may be configured to send early warning information if the actual γ passage rate is smaller than a preset γ passage rate.
Further, in order to acquire a dose value corresponding to each region on the first radiotherapy image, the acquiring unit 31 includes: an acquisition module 311 and a determination module 312.
The obtaining module 311 may be configured to obtain the illumination intensity and the illumination size collected by each collecting region of the electronic portal imaging apparatus.
The determining module 312 may be configured to determine a dose value corresponding to each region on the first radiotherapy image according to the illumination intensity and the illumination size acquired by each acquisition region.
Further, the position information is position information of a tumor in a second radiotherapy image generated by a cone beam projection computed tomography apparatus, and the comparing unit 32 may be further specifically configured to calculate a second tumor position deviation between the position information of the tumor in the second radiotherapy image and the position information of the tumor in the original image.
The adjusting unit 33 may be further specifically configured to adjust the positioning during the treatment process of the patient according to the second tumor position deviation if the second tumor position deviation is greater than the preset tumor position deviation.
It should be noted that other corresponding descriptions of the functional units related to the tumor radiotherapy positioning adjustment apparatus provided in the embodiment of the present invention may refer to the corresponding description in fig. 1, and are not repeated herein.
Based on the method shown in fig. 1, correspondingly, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following steps: acquiring position information generated by target treatment equipment in the treatment process of a patient; comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result; and adjusting the position of the patient in the treatment process according to the comparison result.
Based on the above embodiments of the method shown in fig. 1 and the apparatus shown in fig. 3, the embodiment of the present invention further provides a computer device, as shown in fig. 5, including a processor (processor)41, a communication Interface (communication Interface)42, a memory (memory)43, and a communication bus 44. Wherein: the processor 41, the communication interface 42, and the memory 43 communicate with each other via a communication bus 44. A communication interface 44 for communicating with network elements of other devices, such as clients or other servers. The processor 41 is configured to execute a program, and may specifically execute relevant steps in the above data conversion method embodiment. In particular, the program may include program code comprising computer operating instructions. The processor 41 may be a central processing unit CPU or a Specific Integrated circuit asic (application Specific Integrated circuit) or one or more Integrated circuits configured to implement an embodiment of the invention.
The terminal comprises one or more processors, which can be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs. And a memory 43 for storing a program. The memory 43 may comprise a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The program may specifically be adapted to cause the processor 41 to perform the following operations: acquiring position information generated by target treatment equipment in the treatment process of a patient; comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result; and adjusting the position of the patient in the treatment process according to the comparison result.
Compared with the existing mode of carrying out the position verification and adjustment of tumor radiotherapy before the treatment of a patient, the position adjustment device for tumor radiotherapy provided by the embodiment of the invention can acquire the position information generated by target treatment equipment in the treatment process of the patient; comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result; meanwhile, the positioning of the patient in the treatment process is adjusted according to the comparison result, so that the positioning verification of tumor radiotherapy can be carried out in real time in the treatment process of the patient, the condition of inaccurate positioning can be found in time, the positioning adjustment is carried out, and the treatment effect of the patient is ensured.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the method and apparatus described above are referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components of the radiation therapy planning system-based portal setting apparatus in accordance with embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (10)
1. A method for adjusting the positioning of tumor radiotherapy is characterized by comprising the following steps:
acquiring position information generated by target treatment equipment in the treatment process of a patient;
comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and adjusting the position of the patient in the treatment process according to the comparison result.
2. The method of claim 1, wherein the position information comprises bed information and radiation angle in an electron linear accelerator treatment log, and the comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result comprises:
calculating the bed deviation between the bed information and the preset bed information;
the adjusting the positioning of the patient in the treatment process according to the comparison result comprises:
if the bed deviation is larger than the preset bed deviation, adjusting the swing position of the patient in the treatment process according to the bed deviation; and/or
Calculating an angle deviation between the radiation angle and the preset radiation angle;
the adjusting the positioning of the patient in the treatment process according to the comparison result comprises:
and if the angle deviation is greater than the preset angle deviation, adjusting the positioning of the patient in the treatment process according to the angle deviation.
3. The method of claim 1, wherein the location information comprises location information of a tumor in a first radiotherapy image generated by an electronic portal imaging device, and the comparing the location information with preset location information in the radiotherapy plan of the patient to obtain a comparison result comprises:
calculating a first tumor position deviation between the position information of the tumor in the first radiotherapy image and the position information of the tumor in the original image;
the adjusting the positioning of the patient in the treatment process according to the comparison result comprises:
and if the first tumor position deviation is greater than the preset tumor position deviation, adjusting the positioning of the patient in the treatment process according to the first tumor position deviation.
4. The method of claim 3, further comprising:
obtaining dose values corresponding to all areas on a plurality of first radiotherapy images;
superposing the dose values corresponding to the regions on the first radiotherapy images to obtain the total dose value corresponding to each region;
comparing the total dose value corresponding to each region with a preset dose value corresponding to each region in a radiotherapy plan;
and sending out early warning information according to the comparison result corresponding to each region.
5. The method according to claim 4, wherein the sending out the early warning information according to the comparison result corresponding to each region comprises:
calculating the actual gamma passing rate of the radioactive rays by using a preset Monte Carlo algorithm according to the comparison result corresponding to each region;
and if the actual gamma passing rate is less than the preset gamma passing rate, sending out early warning information.
6. The method of claim 4, wherein the obtaining dose values corresponding to respective regions of the first radiotherapy image comprises:
acquiring the illumination intensity and the illumination size acquired by each acquisition area of the electronic portal imaging equipment;
and determining the dose value corresponding to each region on the first radiotherapy image according to the illumination intensity and the illumination size acquired by each acquisition region.
7. The method of claim 1, wherein the position information is position information of a tumor in a second radiotherapy image generated by a cone beam computed tomography apparatus, and the comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result comprises:
calculating a second tumor position deviation between the position information of the tumor in the second radiotherapy image and the position information of the tumor in the original image;
the adjusting the positioning of the patient in the treatment process according to the comparison result comprises:
and if the second tumor position deviation is greater than the preset tumor position deviation, adjusting the positioning of the patient in the treatment process according to the second tumor position deviation.
8. A kind of tumor radiotherapy puts the adjusting device in position, characterized by that, comprising:
the acquisition unit is used for acquiring position information generated by the target treatment equipment in the treatment process of the patient;
the comparison unit is used for comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and the adjusting unit is used for adjusting the position of the patient in the treatment process according to the comparison result.
9. A computer-readable storage medium, on which a computer program is stored, which program, when executed by a processor, carries out the steps of:
acquiring position information generated by target treatment equipment in the treatment process of a patient;
comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and adjusting the position of the patient in the treatment process according to the comparison result.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:
acquiring position information generated by target treatment equipment in the treatment process of a patient;
comparing the position information with preset position information in the radiotherapy plan of the patient to obtain a comparison result;
and adjusting the position of the patient in the treatment process according to the comparison result.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027128A (en) * | 2014-06-23 | 2014-09-10 | 中国科学院合肥物质科学研究院 | Offline dose verification method based on improved CBCT (cone beam computed tomography) images |
| CN104338240A (en) * | 2014-10-31 | 2015-02-11 | 章桦 | Automatic optimization method for on-line self-adaption radiotherapy plan and device |
| CN104587609A (en) * | 2015-02-03 | 2015-05-06 | 瑞地玛医学科技有限公司 | Positioning and locating device for radiotherapy and positioning method of dynamic target region |
| CN105342631A (en) * | 2015-11-30 | 2016-02-24 | 北京大学第一医院 | Radioactive ray monitoring and treating system |
| US20170319873A1 (en) * | 2016-05-04 | 2017-11-09 | Pyramid Technical Consultants Inc. | Method and Apparatus for Controlled Pencil Beam Therapy |
| CN110302475A (en) * | 2018-03-20 | 2019-10-08 | 北京连心医疗科技有限公司 | A kind of cloud Monte Carlo dose verifying analysis method, equipment and storage medium |
-
2020
- 2020-10-16 CN CN202011107566.6A patent/CN112354086A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027128A (en) * | 2014-06-23 | 2014-09-10 | 中国科学院合肥物质科学研究院 | Offline dose verification method based on improved CBCT (cone beam computed tomography) images |
| CN104338240A (en) * | 2014-10-31 | 2015-02-11 | 章桦 | Automatic optimization method for on-line self-adaption radiotherapy plan and device |
| CN104587609A (en) * | 2015-02-03 | 2015-05-06 | 瑞地玛医学科技有限公司 | Positioning and locating device for radiotherapy and positioning method of dynamic target region |
| CN105342631A (en) * | 2015-11-30 | 2016-02-24 | 北京大学第一医院 | Radioactive ray monitoring and treating system |
| US20170319873A1 (en) * | 2016-05-04 | 2017-11-09 | Pyramid Technical Consultants Inc. | Method and Apparatus for Controlled Pencil Beam Therapy |
| CN110302475A (en) * | 2018-03-20 | 2019-10-08 | 北京连心医疗科技有限公司 | A kind of cloud Monte Carlo dose verifying analysis method, equipment and storage medium |
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