WO2020029089A1 - 位置调整方法、装置及放射治疗系统 - Google Patents

位置调整方法、装置及放射治疗系统 Download PDF

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Publication number
WO2020029089A1
WO2020029089A1 PCT/CN2018/099245 CN2018099245W WO2020029089A1 WO 2020029089 A1 WO2020029089 A1 WO 2020029089A1 CN 2018099245 W CN2018099245 W CN 2018099245W WO 2020029089 A1 WO2020029089 A1 WO 2020029089A1
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WO
WIPO (PCT)
Prior art keywords
real
position adjustment
reference position
patient
time
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Application number
PCT/CN2018/099245
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English (en)
French (fr)
Inventor
闫浩
苟天昌
李久良
李金升
Original Assignee
西安大医集团有限公司
深圳市奥沃医学新技术发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 西安大医集团有限公司, 深圳市奥沃医学新技术发展有限公司 filed Critical 西安大医集团有限公司
Priority to US17/266,545 priority Critical patent/US11938345B2/en
Priority to PCT/CN2018/099245 priority patent/WO2020029089A1/zh
Priority to CN201880095821.4A priority patent/CN112449609B/zh
Publication of WO2020029089A1 publication Critical patent/WO2020029089A1/zh

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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
    • 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
    • A61N2005/1051—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using an active marker

Definitions

  • the present invention relates to the field of radiation therapy, and in particular, to a position adjustment method and device, and a radiation therapy system.
  • Radiation therapy is a method of treating tumors using radiation therapy equipment.
  • the patient may move, or in the process of positioning the patient, the positioning is not accurate enough, which will affect the accuracy of the radiotherapy.
  • positioning marks are usually set on the surface of the patient.
  • the control system instructs the radiotherapy equipment to adjust the position of the treatment table so that the positioning mark point and the reference position position always coincide.
  • the invention provides a position adjustment method, a device and a radiation therapy system, which can solve the problem of low accuracy of radiation therapy caused by frequent movement of a treatment bed.
  • the technical solution is as follows:
  • a position adjustment method includes:
  • the position adjustment information is used to instruct a patient to adjust his position.
  • a position adjustment device in a second aspect, includes:
  • a first acquisition module configured to acquire a real-time position of a positioning mark point preset by the affected part
  • a second acquisition module configured to acquire a reference position of the positioning mark point
  • An output module configured to output position adjustment information in a display manner and / or output position adjustment information in a voice manner according to the real-time position and the reference position, the position adjustment information is used to instruct a patient to adjust his position .
  • a position adjustment device includes a processor and a memory, and the memory stores instructions, and the instructions are loaded and executed by the processor to implement the method described in the first aspect. Position adjustment method.
  • a storage medium stores instructions, and when the readable storage medium runs on a processing component, the processing component is caused to execute the position adjustment method according to the first aspect.
  • a radiotherapy system includes the position adjustment device and the position tracking system according to the second aspect.
  • Embodiments of the present invention provide a position adjustment method, a device, and a radiation therapy system.
  • the position adjustment method can display and / or a reference position of the positioning mark point in advance based on the acquired real-time position of the positioning mark point and the reference position of the positioning mark point. Or output position adjustment information for prompting the patient to adjust his position by voice. Because this method allows the patient to adjust the information according to the output position and adjust its position by itself, there is no need to move the treatment table frequently, which avoids the problem of cumulative mechanical errors caused by continuously moving the treatment table and affecting the accuracy of radiotherapy.
  • FIG. 1 is a schematic structural diagram of a radiation therapy system according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a position adjustment method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of another position adjustment method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for closing a radioactive source and / or outputting alarm information when a deviation between a real-time position and a reference position is greater than an allowable deviation range provided by an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a reference position and an allowable deviation range of a positioning mark point displayed on a display component according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of another reference position and an allowable deviation range of a positioning mark point displayed on a display component according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a reference position, a real-time position, and an allowable deviation range of a positioning mark point displayed on a display component according to an embodiment of the present invention
  • FIG. 8 is a block diagram of a position adjustment device according to an embodiment of the present invention.
  • FIG. 9 is a block diagram of another position adjustment device according to an embodiment of the present invention.
  • FIG. 10 is a block diagram of still another position adjustment device according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a radiation therapy system according to an embodiment of the present invention.
  • the radiation therapy system may include a position adjustment device 01 (also referred to as an interactive motion management device) and a position tracking system. 02 (such as optical infrared tracking system).
  • a position adjustment device 01 also referred to as an interactive motion management device
  • a position tracking system. 02 such as optical infrared tracking system.
  • the position tracking system 02 is used to track the position of a positioning mark point (such as an infrared ball) set in advance on the affected part (such as the head, body, etc.);
  • the position adjustment device 01 is connected to the position tracking system 02, and the position adjustment device 01 can directly obtain the real-time position of the positioning mark point preset by the affected part from the position tracking system 02 in real time.
  • the position tracking system 02 is connected to the control system, and the position adjustment device 01 is connected to the control system. In this way, the position tracking system 02 sends the real-time position of the positioning mark point set in advance by the affected part to the control system in real time.
  • the position adjustment device 01 acquires the real-time position of the positioning mark point set in advance by the affected part from the control system in real time.
  • the position tracking system 02 can also be integrated in the control system to obtain the real-time position of the positioning mark point preset by the affected part from the position tracking system 02; or the position tracking system 02 is integrated into the position adjustment device 01, and the position adjustment device 01 directly Obtaining the real-time position of the positioning mark point preset by the affected part, thereby reducing the production cost of the radiotherapy system.
  • FIG. 2 is a flowchart of a position adjustment method according to an embodiment of the present invention. The method can be applied to the position adjustment device 01 shown in FIG. 1. This position adjustment method is used as an example in the process of radiation therapy. As shown in FIG. 2, the method may include:
  • Step 201 Obtain a real-time position of a positioning mark point preset by the affected part.
  • the position tracking system 02 can detect the real-time position of the positioning mark point in real time.
  • the position adjustment device 01 can acquire the real-time position of the positioning mark point detected by the position tracking system 02 in real time.
  • Step 202 Obtain a reference position of the positioning mark point.
  • the reference position of the positioning mark point refers to the position where the positioning mark point is before the radiation treatment is completed and the patient is positioned.
  • the position adjustment device 01 may also obtain a reference position of the positioning mark in advance. When the real-time position of the positioning mark does not coincide with the reference position, it can be determined that the positioning mark has shifted; when the real-time position of the positioning mark coincides with the reference position, it can be determined that the positioning mark is not An offset has occurred.
  • Step 203 According to the real-time position and the reference position, output position adjustment information in a displayed manner and / or position adjustment information in a voice manner.
  • the position adjustment information is used to instruct the patient to adjust its position.
  • the position adjusting device 01 may output position adjustment information for instructing the patient to adjust its position in a display and / or voice manner according to the obtained real-time position and reference position of the positioning mark point.
  • the position adjustment device 01 may use the obtained real-time position and reference position of the positioning mark of the affected part as position adjustment information and display it to the patient, so that the patient can adjust the position by himself based on the observed real-time position and reference position. And / or, the position adjustment device 01 may further determine a position adjustment method according to the real-time position and the reference position, and output the position adjustment information including the position adjustment method in a voice manner. Patients can adjust their own position according to the received position adjustment method.
  • the position adjustment device 01 can acquire the real-time position of the positioning mark point in real time, after the patient adjusts his position, the position adjustment information can be continuously output according to the adjusted real-time position of the positioning mark point, so that the patient can adjust the device according to the position. 01 The position adjustment information re-output, which is to continue to adjust its position according to its real-time adjustment situation.
  • an embodiment of the present invention provides a position adjustment method.
  • the method may use display and / or voice based on the obtained real-time position of the positioning mark point and the reference position of the positioning mark point to be obtained in advance.
  • the mode outputs position adjustment information for prompting the patient to adjust his position. Because this method allows the patient to adjust the information according to the output position and adjust its position by itself, there is no need to move the treatment table frequently, which avoids the problem of cumulative mechanical errors caused by continuously moving the treatment table and affecting the accuracy of radiotherapy.
  • FIG. 3 is a flowchart of another position adjustment method according to an embodiment of the present invention.
  • the method may be applied to the position adjustment device 01 shown in FIG. 1.
  • This position adjustment method is used as an example in the process of radiation therapy.
  • the method may include:
  • Step 301 Obtain a real-time position of a positioning mark point preset by the affected part.
  • the position tracking system 02 can detect the real-time position of the positioning mark point in real time.
  • the position adjustment device 01 can acquire the real-time position of the positioning mark point detected by the position tracking system 02 in real time.
  • Step 302 Obtain a reference position of the positioning mark.
  • the reference position of the positioning mark point refers to the position of the positioning mark point before the radiation treatment is completed after the patient is positioned.
  • the reference position of the positioning mark point obtained by the position adjustment device 01 may be a coordinate value of the positioning mark point in a specified coordinate system.
  • the specified coordinate system may be a device coordinate system.
  • the radiotherapy system generally includes: radiotherapy equipment and position tracking system. Therefore, the designated coordinate system may be a device coordinate system corresponding to a radiation therapy device or an infrared coordinate system of a position tracking system.
  • the position adjustment device 01 may also obtain a reference position of the positioning mark in advance. When the real-time position of the positioning mark does not coincide with the reference position, it can be determined that the positioning mark has shifted; when the real-time position of the positioning mark coincides with the reference position, it can be determined that the positioning mark is not An offset has occurred.
  • the position adjusting device 01 may obtain the position of the positioning mark point when the positioning of the patient is completed, and determine the obtained position as the reference position.
  • a positioning mark may be set on the body surface of the patient, and a positioning operation may be performed on the patient so as to align the target point of the affected part of the patient with the beam focus of the radiotherapy equipment.
  • the position adjusting device 01 can directly obtain the position of the positioning mark point, and can determine the position as the reference position of the positioning mark point.
  • the position adjustment device 01 may also receive the position of the positioning mark point obtained by the position tracking system 02, and determine the position as the reference position.
  • the position adjustment device 01 may obtain a reference position from a treatment plan before radiation treatment.
  • the treatment plan refers to the treatment plan formulated by the treating physician for the patient when examining the patient.
  • a computerized tomography (CT) scan may be performed on the patient to obtain a CT image of the patient.
  • the treating physician can obtain the affected part of the patient (such as the affected part position and affected part size) from the CT image.
  • the treating physician can record the reference position of the positioning mark point of the affected part in the treatment plan based on the CT image, and input the reference position of the positioning mark point into the position adjustment device 01.
  • the storage space of the position adjustment device 01 can be reduced.
  • the treating physician may store the prepared treatment plan in the position adjustment device 01 in advance before the radiation treatment, so that the position adjustment device 01 directly obtains the reference position of the positioning mark point from the treatment plan.
  • the acquisition efficiency can be improved, and since there is no need to specially set a position tracking system 02 for obtaining the reference position, the production cost of the radiation treatment system is reduced.
  • the position adjusting device 01 may further store the correspondence between the patient's identity information and the affected part information and the reference position of the positioning mark point.
  • the treating physician may obtain the reference position of the positioning mark point corresponding to the patient whose identity information and affected part information are similar or the same in the corresponding relationship, and determine the obtained reference position as the patient ’s The reference position of the anchor point.
  • Step 303 Obtain an allowable deviation range.
  • the position of the positioning mark point is different from the reference position. There may not be a deviation between the two, and at this time it will not have a great impact on the radiotherapy, so the patient may not need to adjust the position.
  • the radiation may need to be turned off immediately. Source to prevent damage to the patient's normal tissues.
  • the position adjusting device 01 may also obtain an allowable deviation range of the positioning mark point, so as to determine whether to adjust the position or determine whether to stop the radiotherapy according to the allowable deviation range.
  • the allowable deviation range obtained by the position adjustment device 01 may be an upper limit of a distance value from a reference position of the positioning mark point in the designated coordinate system.
  • the position adjustment device 01 may store in advance the correspondence between the patient's identity information and the affected part information and the allowable deviation range, and the allowable deviation range in the correspondence relationship may be set in advance by the treating physician.
  • the position adjusting device 01 may determine the allowable deviation range corresponding to the current patient according to the obtained patient's identity information and the affected part information. Obtaining the allowable deviation range directly from the pre-stored correspondence can improve the efficiency of obtaining the allowable deviation range.
  • the identity information may include at least one of a patient ’s age and a patient ’s gender; the affected part information may include: at least one of a tumor type, a tumor site, and a tumor size of the affected part.
  • the patient's identity information stored in the position adjustment device 01 includes: the age of the patient and the gender of the patient; and the stored information of the affected part of the patient includes: a tumor site.
  • the correspondence between the patient's identity information and the affected part information and the allowable deviation range stored in the position adjustment device 01 can be shown in Table 1.
  • the identity information of a patient is: age 4 years, gender male; the patient's affected part information is: lung tumor, and the allowable deviation range corresponding to the affected part information and identity information can be 0 to x1 mm ( mm).
  • the position adjustment device 01 obtains the identity information of a patient as: age: 24 years old; gender: female, and the affected part information is: brain tumor
  • the position adjustment device 01 can be based on the above table 1
  • the corresponding relationship shown directly determines that the allowable deviation range corresponding to the patient can be 0 to x2mm.
  • the treating physician when performing radiotherapy on a patient, may also adjust the size of the allowable deviation range determined by the position adjustment device 01 in real time with reference to the actual movement amplitude and the number of movements of the patient.
  • the position adjusting device 01 may receive an allowable deviation range input by the treating physician. That is, the treating physician can determine the corresponding allowable deviation range for the patient according to the patient information and the affected part information in advance. By receiving the allowable deviation range input by the treating physician, the reliability and pertinence of the obtained allowable deviation range can be improved.
  • the patient's affected part information is: leg tumor. Because male children generally have a large range of activities and number of activities, and because the tumor is located on the leg, in order to avoid the problem that the patient may have a lot of movements, the problem of a large number of shifts in the location marks of the affected part.
  • the treating physician can set a large allowable deviation range for this patient: 0 to 5mm; suppose the identity information of a patient is: gender female, age 26 years old; the patient's affected area information is: leg tumor. Therefore, a smaller allowable deviation range can be formulated for the patient: 0 to 3 mm.
  • the treating physician can input the specified allowable deviation range into the position adjustment device 01.
  • Step 304 Detect whether the deviation between the real-time position and the reference position is greater than the allowable deviation range.
  • the position adjusting device 01 can also calculate the distance (ie, deviation) between the obtained real-time position and the reference position, and compare the deviation with the allowable deviation range to detect whether the deviation between the real-time position and the reference position is greater than the allowable deviation range.
  • step 305 When the position adjustment device 01 detects that the deviation between the real-time position and the reference position is greater than the allowable deviation range, the following step 305 may be continued; when the position adjustment device 01 detects that the deviation between the real-time position and the reference position is not greater than the allowable deviation range, the Continue to step 306 described below.
  • Step 305 Shut down the radioactive source or output alarm information.
  • the warning information is used to instruct to shut down the radioactive source.
  • the position adjustment device 01 when the position adjustment device 01 detects that the deviation between the real-time position of the positioning mark point and the reference position is greater than the allowable deviation range, in order to avoid the radiation source causing damage to the normal tissue of the patient, the position adjustment device 01 can directly control The radiation source of the radiotherapy equipment is turned off to stop the radiotherapy. That is, the position adjustment device 01 can actively control the working state of the radiation source. By directly turning off the radiation source, the reliability of radiation therapy can be effectively improved.
  • the position adjustment device 01 may also output an alarm message for instructing to close the radioactive source when it is detected that the deviation between the real-time position of the positioning mark point and the reference position is greater than the allowable deviation range.
  • the position adjustment device 01 may include an alarm device, or the position adjustment device 01 may be connected with an alarm device.
  • the position adjustment device 01 may output alarm information through the alarm device.
  • the treating physician receives this warning message, the radiation source can be turned off.
  • the alarm device may be an acousto-optic alarm, and accordingly, the alarm information may be an acousto-optic alarm signal; or, the alarm device may also be a voice prompt component, and accordingly, the alarm information may be a voice alarm information.
  • the voice alert information may be a voice of "turn off the radioactive source".
  • FIG. 4 is a flowchart of a method for closing a radioactive source or outputting alarm information when a deviation between a real-time position and a reference position is greater than an allowable deviation range provided by an embodiment of the present invention. As shown in FIG. 4, the method may include:
  • Step 3051 When the deviation between the real-time position and the reference position is greater than the allowable deviation range, it is detected whether the duration of the deviation of the real-time position from the reference position is greater than the allowable deviation range is greater than the duration threshold.
  • the position adjusting device 01 can also detect whether the duration of which the deviation between the real-time position and the reference position is greater than the allowable deviation range is greater than the duration threshold.
  • the duration threshold may refer to a preset duration threshold in the position adjustment device 01, and the duration threshold may be different for different identity information and different affected part information, that is, the position adjustment device 01 may store a patient's Correspondence between identity information and affected part information and duration threshold.
  • the position adjusting device 01 can directly refer to the corresponding relationship according to the obtained identity information and the affected part information of the patient to determine the duration threshold corresponding to the patient. That is, the position adjustment device 01 can obtain a duration threshold corresponding to a patient whose identity information and affected part information are similar or the same in the corresponding relationship, and determine the acquired duration threshold as the duration threshold of the patient .
  • the following step 3052 may be continued; when the position adjustment device detects that the deviation between the real-time position and the reference position is greater than the allowable deviation range
  • the following step 306 may be continued, that is, the patient may be prompted to adjust the position and continue to perform radiation treatment on the patient.
  • the position adjustment device 01 can determine that the deviation between the real-time position and the reference position is greater than the allowable deviation range. At this time, the position adjusting device 01 may continue to detect whether the duration of which the deviation between the real-time position and the reference position is greater than the allowable deviation range is greater than the duration threshold.
  • the position adjustment device 01 can determine that the deviation between the real-time position and the reference position is greater than the allowable The duration of the deviation range is greater than the duration threshold. At this time, the position adjustment device 01 may continue to perform the following step 3052.
  • Step 3052 Turn off the radioactive source or output alarm information.
  • the position adjustment device 01 when the position adjustment device 01 detects that the deviation between the real-time position and the reference position is greater than the allowable deviation range and the duration is greater than the duration threshold, at this time, the position adjustment device 01 may directly close the radiation source or output a prompt to the treating physician Turn off the alarm information for the radioactive source.
  • Step 306 According to the real-time position, the reference position, and the allowable deviation range, output position adjustment information in a display manner and / or output position adjustment information in a voice manner.
  • the position adjustment device when the position adjustment device detects that the deviation between the real-time position and the reference position is not greater than the allowable deviation range, or detects that the deviation between the real-time position and the reference position is greater than the allowable deviation range, but the deviation between the real-time position and the reference position is greater than
  • the position adjustment device may output the position adjustment information in a display manner and / or the position adjustment information in a voice manner according to the real-time position, the reference position, and the allowable deviation range.
  • the position adjustment device 01 may continue to acquire the real-time position of the positioning mark point after the patient adjusts his position in real time, and use the acquired real-time position as the position
  • the adjustment information is output to the patient so that the patient can continue to adjust its position according to his real-time adjustment situation.
  • the position adjustment information may include: a specified coordinate system, and a relative position of the real-time position and the reference position in the specified coordinate system.
  • the position adjustment device may output the position adjustment information in a display manner and / or a voice manner.
  • the position adjustment device 01 may include a display component, or the position adjustment device 01 may be connected to a display component.
  • the position adjustment device 01 can output the position adjustment information through the display component.
  • the designated coordinate system may include a device coordinate system corresponding to a radiation therapy device or an infrared coordinate system of a position tracking system.
  • the designated coordinate system displayed on the display component may be a six-dimensional coordinate system, that is, a six-dimensional space may be displayed on the display component.
  • the position adjustment information may further include a position of the allowable deviation range in the specified coordinate system, and / or a historical motion trajectory of the positioning mark point.
  • the position adjusting device 01 can display the relative position of the specified coordinate system, the real-time position and the reference position in the specified coordinate system, and the allowable deviation range on the display component.
  • the patient can observe the position adjustment information displayed on the display component. Adjust its position.
  • FIG. 5 is a schematic diagram of a reference position and an allowable deviation range of a positioning mark point displayed on a display component L according to an embodiment of the present invention.
  • the position adjustment device 01 may obtain The reference position of the obtained positioning mark point is displayed on the display unit L.
  • the position adjustment device 01 may also use a dot mark to display the obtained reference position of the positioning mark point on the display component L.
  • the embodiment of the present invention does not limit the display form of the reference position of the positioning mark point.
  • the position adjustment device 01 may determine a circle in the specified coordinate system with the reference position as the center and the distance upper limit d as the radius, and display The round.
  • the range defined by the circle is the allowable deviation range of the affected part.
  • the position adjustment device 01 may further divide the acquired allowable deviation range into different levels according to the range size, so that the patient determines whether the position needs to be adjusted according to the different levels.
  • FIG. 6 is a schematic diagram of a four-level allowable deviation range provided by an embodiment of the present invention.
  • FIG. 6 includes four circles in total, and the four circles may respectively represent four different-level allowable deviation ranges.
  • FIG. 7 is a schematic diagram of a real-time position, a relative position of a reference position in a specified coordinate system, and an allowable deviation range displayed on the display component L according to an embodiment of the present invention.
  • the display component L may mark a reference position with a cross, for example, a cross mark B in FIG. 7, and may mark a real-time position with a dot, such as dot A in FIG. 7.
  • the allowable deviation range can be marked in a circle.
  • the patient can observe that the positioning mark of the affected part is about to exceed the allowable deviation range, and can observe that the reference position of the positioning mark of the affected part is located at the cross mark B, and the patient can adjust its position by itself so that the positioning mark moves toward the cross mark.
  • the display component L can also display the historical motion trajectory of the positioning mark point in real time.
  • the position adjusting device 01 may also store the historical motion trajectory of the positioning mark point, so that the treating physician can determine the magnitude of the patient's motion amplitude and the number of times of motion according to the motion trajectory of the positioning mark point.
  • the display component may be a display screen directly above the treatment bed in the radiotherapy equipment.
  • the display screen can be set in parallel with the treatment table, and the display screen can be set within the line of sight of the patient.
  • the display component may also be glasses with a display screen, and the patient only needs to wear the glasses including the display screen, that is, the position adjustment information can be observed, which improves the convenience of patient observation.
  • the display component may also be used to display the real-time position, the reference position, the allowable deviation range, and the motion trajectory with different display effects (such as different display colors). By displaying with different display effects, it is convenient for the patient to observe, thereby improving the efficiency of adjusting the position of the patient.
  • the display component L can also display different levels of the allowable deviation range with different display effects (such as different lines), so that The patient determines which level of the tolerance mark the positioning marker is currently in, which facilitates the patient to determine whether the position needs to be adjusted.
  • the position adjustment device 01 may further determine a position adjustment method according to a deviation between a real-time position and a reference position obtained in advance, and then output the included position by a display method and / or a voice method. Position adjustment information for the adjustment method.
  • the position adjusting device 01 may include a voice prompt component.
  • the position adjustment device 01 may include a speaker, and the position adjustment device 01 may directly broadcast the determined position adjustment manner to the patient through the speaker.
  • the position adjusting device 01 may be connected with a voice prompt component.
  • the voice prompt component may include a speaker or a headset, and the position adjustment device 01 may establish a connection with the voice prompt component in a wired or wireless manner.
  • the position adjustment device 01 may send the determined position adjustment mode to the voice prompt component, and then the voice prompt component may broadcast the position adjustment information including the position adjustment mode to the patient.
  • the position adjustment method may include a direction and a distance of the position adjustment.
  • the position adjusting device 01 can calculate the direction of the adjusted position and the distance to be adjusted by a preset algorithm according to the deviation between the real-time position and the reference position.
  • the preset algorithm refers to an algorithm that determines an adjustment direction and an adjustment distance according to a deviation of a real-time position and a reference position and a relative direction, so that the real-time position is aligned with the reference position.
  • the position adjustment device 01 may send the determined position adjustment method to the voice prompting component, and the voice prompting component may notify the patient of the position adjustment method through a voice broadcast method.
  • the position adjustment device 01 determines a position adjustment method according to the deviation between the real-time position and the reference position by moving Xmm to the right, and the voice prompt component is an earphone connected to the position adjustment device 01. Then, the position adjustment device 01 can broadcast the position adjustment information that moves Xmm to the right to the patient through a headset, so that the patient can adjust its position according to the position adjustment information.
  • the method for adjusting the positions of steps 301 to 306 can also be applied to the process of positioning the patient.
  • the treating physician can determine whether the positioning mark of the affected part is within the allowable deviation range according to the position adjustment information, and determine the deviation between the real-time position and the reference position of the positioning mark of the affected part.
  • the therapist can adjust the information according to the position and train the patient to actively participate in the positioning, thereby ensuring the accuracy of the positioning.
  • the position adjustment device 01 may further store the reference position, the allowable deviation range, the patient's motion trajectory, and the like of the positioning mark points of each patient obtained after performing radiation treatment on each patient.
  • the position adjusting device 01 can store and store the reference position of the positioning mark point of each patient, the allowable deviation range, and the patient's motion trajectory.
  • the position adjustment device 01 can classify and store the reference position, the allowable deviation range, and the patient trajectory of the positioning mark points of each patient obtained according to the characteristics of the patient's identity information or the patient's affected part information.
  • the treating physician can formulate a preliminary treatment plan for the patient according to the reference position of the positioning mark points corresponding to different types of patients stored in the position adjustment device 01, the allowable deviation range, and the patient's motion trajectory. Improve the efficiency of radiotherapy for patients.
  • the treating physician may also perform a simulated radiation treatment on the patient in order to determine whether the patient is suitable for the position adjustment method of steps 301 to 306 described above. That is, when performing a simulated treatment on a patient, the treating physician can adjust the information according to the output position to determine the magnitude of the patient's movement amplitude and number of movements. When the patient's movement range and number of movements are large, and it is difficult to adjust and control the position by himself, the treating physician can directly perform drug anesthesia on the patient before the radiotherapy, thereby further ensuring the reliability of the radiotherapy. .
  • simulated radiation therapy refers to a method of performing simulated radiation therapy on a patient without turning on a radiation source.
  • Step 307 Obtain the number of deviations between the real-time position and the reference position within a preset time period that is greater than the allowable deviation range.
  • the position adjustment device 01 in order to determine the magnitude of the patient's movement and the number of times of movement, that is, to determine whether the patient is hyperactive, can also obtain the real-time position within a preset time period before performing radiotherapy on the patient.
  • the deviation from the reference position is greater than the number of deviations from the allowable deviation range.
  • the preset time period refers to a preset time period in the position adjustment device 01, and the preset time period may be 10 minutes or 1 hour.
  • Step 308 Determine a positioning method for the patient according to the number of deviations.
  • the positioning method may include invasive positioning and non-invasive positioning.
  • Invasive positioning refers to the positioning of the patient on the treatment table using tools such as head nails and head frames; non-invasive positioning refers to the positioning of the patient on the treatment table using a mask.
  • Invasive positioning refers to the positioning of the patient on the treatment table using tools such as head nails and head frames; non-invasive positioning refers to the positioning of the patient on the treatment table using a mask.
  • Invasive positioning refers to the positioning of the patient on the treatment table using tools such as head nails and head frames
  • non-invasive positioning refers to the positioning of the patient on the treatment table using a mask.
  • Invasive positioning refers to the positioning of the patient on the treatment table using tools such as head nails and head frames
  • non-invasive positioning refers to the positioning of the patient on the treatment table using a mask.
  • the position adjustment device 01 when the position adjustment device 01 detects that the number of deviations is greater than the number threshold, it can be determined that the number of times and amplitude of the patient's movement is large, that is, it can be determined that the positioning method for such patients can be invasive Positioning.
  • the position adjustment device 01 detects that the number of deviations is not greater than the number threshold, it can be determined that the number of times and amplitude of movement of the patient is small, that is, it can be determined that the positioning method for such patients can be non-invasive positioning.
  • the number of times threshold may refer to a number of times threshold set in advance in the position adjustment device 01. For different patients, the number of times threshold may be different.
  • the position adjustment device 01 obtains 5 times of deviations between the real-time position and the reference position that are larger than the allowable deviation range.
  • the position adjustment device 01 can detect that the number of deviations is less than the threshold number of times. At this time, the position adjustment device 01 can determine that the positioning method for the patient is non-invasive positioning.
  • the position adjustment device 01 may also obtain other information of the patient (such as the patient's identity information and the affected part information).
  • the position adjusting device 01 can score the number of movements and the range of movement of the patient in combination with the patient's identity information, the affected part information, and the number of deviations before performing radiation treatment on the patient.
  • the score threshold may refer to a score value stored in the position adjusting device 01 in advance.
  • an embodiment of the present invention provides a position adjustment method.
  • the method may use display and / or voice based on the obtained real-time position of the positioning mark point and the reference position of the positioning mark point to be obtained in advance.
  • the mode outputs position adjustment information for prompting the patient to adjust his position. Because this method allows the patient to adjust the information according to the output position and adjust its position by itself, there is no need to move the treatment table frequently, which avoids the problem of cumulative mechanical errors caused by continuously moving the treatment table and affecting the accuracy of radiotherapy.
  • FIG. 8 is a block diagram of a position adjustment device according to an embodiment of the present invention. As shown in FIG. 8, the position adjustment device may include:
  • the first acquiring module 401 is configured to acquire a real-time position of a positioning mark point preset by the affected part.
  • the second obtaining module 402 is configured to obtain a reference position of the positioning mark point.
  • the output module 403 is configured to output the position adjustment information in a display manner and / or the position adjustment information in a voice manner according to the real-time position and the reference position, and the position adjustment information is used to instruct the patient to adjust its position.
  • an embodiment of the present invention provides a position adjustment device.
  • the device includes a real-time position of a positioning mark point set in advance according to an affected part acquired by a first acquisition module, and a positioning mark point acquired by a second acquisition module.
  • An output module for displaying the reference position of the position adjustment information for prompting the patient to adjust its position in a display and / or voice manner. Because the device can enable the patient to adjust the position according to the output position information, it is unnecessary to frequently move the treatment bed, which avoids the problem of cumulative mechanical errors caused by continuously moving the treatment bed and affecting the accuracy of radiotherapy.
  • the position adjustment information may include a specified coordinate system, and a relative position of the real-time position and the reference position in the specified coordinate system.
  • FIG. 9 is a block diagram of another position adjustment device according to an embodiment of the present invention. As shown in FIG. 9, the position adjustment device may further include:
  • the third obtaining module 404 is configured to obtain an allowable deviation range.
  • the output module 403 may be configured to output position adjustment information in a display manner and / or position adjustment information in a voice manner according to a real-time position, a reference position, and an allowable deviation range.
  • the third obtaining module 404 may be configured to obtain the identity information and the affected part information of the patient, and obtain the allowable deviation range corresponding to the identity information and the affected part information.
  • the position adjustment device may further include:
  • the detecting module 405 is configured to detect whether the deviation between the real-time position and the reference position is greater than an allowable deviation range after obtaining the reference position of the positioning mark point.
  • the output module 403 may also be used to turn off the radioactive source or output alarm information when the deviation between the real-time position and the reference position is greater than the allowable deviation range, and the alarm information may be used to instruct to close the radioactive source.
  • the output module 403 can also be used for:
  • the radioactive source is turned off or an alarm message is output.
  • the position adjustment information may further include: a position of the allowable deviation range in a specified coordinate system, and / or a historical motion trajectory of the positioning mark point.
  • FIG. 10 is a block diagram of another position adjustment device according to an embodiment of the present invention. As shown in FIG. 10, the position adjustment device may further include:
  • the fourth obtaining module 406 is configured to obtain the number of deviations between the real-time position and the reference position within a preset time period that is greater than the allowable deviation range.
  • a determining module 407 is configured to determine a positioning mode for a patient according to the number of deviations.
  • the positioning method may include: invasive positioning and non-invasive positioning.
  • the determining module 407 may be configured to:
  • the positioning method for the patient is determined to be invasive; when the number of deviations is not greater than the threshold, the positioning method for the patient is determined to be non-invasive.
  • the output module 403 may be used to display the real-time position and the reference position with different display effects.
  • the output module 403 may be used for:
  • the position adjustment method is determined according to the deviation between the real-time position and the reference position, and the position adjustment information including the position adjustment method is output through a display mode and / or a voice mode.
  • the second obtaining module 402 may be configured to:
  • the position of the positioning mark is obtained, and the obtained position is determined as the reference position.
  • an embodiment of the present invention provides a position adjustment device.
  • the device includes a real-time position of a positioning mark point set in advance according to an affected part acquired by a first acquisition module, and a positioning mark point acquired by a second acquisition module.
  • An output module for displaying the reference position of the position adjustment information for prompting the patient to adjust its position in a display and / or voice manner. Because the device can adjust the position according to the position output information of the patient and adjust its position by itself, there is no need to frequently move the treatment bed, and the problem of cumulative mechanical errors caused by continuously moving the treatment bed and affecting the accuracy of radiotherapy is avoided.
  • the position adjustment device may include a processor and a memory, and the memory stores instructions that can be loaded and executed by the processor to implement the position adjustment method shown in any one of FIGS. 2 to 4.
  • an embodiment of the present invention provides a storage medium.
  • the storage medium stores instructions.
  • the processing component can be caused to perform position adjustment as shown in any one of FIG. 2 to FIG. 4. method.
  • An embodiment of the present invention further provides a radiation therapy system.
  • the radiation therapy system may include a position adjustment device and a position tracking system as shown in any one of FIGS. 8 to 10.
  • FIG. 1 shows a schematic structural diagram of a radiation therapy system.

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Abstract

本发明公开了一种位置调整方法、装置及放射治疗系统。该位置调整方法包括：获取患部预先设置的定位标记点的实时位置以及该定位标记点的基准位置，并根据该实时位置和该基准位置，通过显示的方式和/或通过语音的方式输出用于指示患者调整其位置的位置调整信息。由于该方法可以使得患者根据位置调整信息，自行调整其位置，无需再频繁移动治疗床，避免了不断移动治疗床造成累积机械误差，影响放射治疗精度的问题。

Description

位置调整方法、装置及放射治疗系统 技术领域
本发明涉及放射治疗领域，特别涉及一种位置调整方法、装置及放射治疗系统。
背景技术
放射治疗是一种采用放射治疗设备治疗肿瘤的方法。但是由于在放射治疗的过程中，患者可能会发生移动，或者在对患者进行摆位的过程中，摆位不够准确，都会对放射治疗的精度造成影响。
目前，为了保证放射治疗的精度，通常在患者的体表设置定位标记点。当检测到定位标记点偏离基准位置时，控制系统就指示放疗设备调整治疗床的位置，以使得定位标记点与基准位置位置始终重合。
但是，如果患者频繁移动，则需要不断调整治疗床的位置。而不断移动治疗床，可能会造成累积机械误差，导致移动治疗床时的精度较低，进而影响放射治疗的精度。
发明内容
本发明提供了一种位置调整方法、装置及放射治疗系统，可以解决由于频繁移动治疗床，造成放射治疗精度较低的问题。所述技术方案如下：
第一方面，提供了一种位置调整方法，所述方法包括：
获取患部预先设置的定位标记点的实时位置；
获取所述定位标记点的基准位置；
根据所述实时位置和所述基准位置，通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息，所述位置调整信息用于指示患者调整其位置。
第二方面，提供了一种位置调整装置，所述装置包括：
第一获取模块，用于获取患部预先设置的定位标记点的实时位置；
第二获取模块，用于获取所述定位标记点的基准位置；
输出模块，用于根据所述实时位置和所述基准位置，通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息，所述位置调整信息用于指示患者调整其位置。
第三方面，提供了一种位置调整装置，所述装置包括：处理器和存储器，所述存储器中存储有指令，所述指令由所述处理器加载并执行以实现如第一方面所述的位置调整方法。
第四方面，提供了一种存储介质，所述存储介质中存储有指令，当所述可读存储介质在处理组件上运行时，使得处理组件执行如第一方面所述的位置调整方法。
第五方面，提供了一种放射治疗系统，所述放射治疗系统包括：如第二方面所述的位置调整装置和位置追踪系统。
本发明提供的技术方案带来的有益效果是：
本发明实施例提供了一种位置调整方法、装置及放射治疗系统，该位置调整方法可以根据获取到的患部预先设置的定位标记点的实时位置和该定位标记点的基准位置，通过显示和/或语音的方式输出用于提示患者调整其位置的位置调整信息。由于该方法可以使得患者根据输出的位置调整信息，自行调整其位置，无需再频繁移动治疗床，避免了不断移动治疗床造成累积机械误差，影响放射治疗精度的问题。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并于说明书一起用于解释本申请的原理。
图1是本发明实施例提供的一种放射治疗系统的结构示意图；
图2是本发明实施例提供的一种位置调整方法的流程图；
图3是本发明实施例提供的另一种位置调整方法的流程图；
图4是本发明实施例提供的一种当实时位置与基准位置的偏差大于允许偏差范围时，关闭放射源和/或输出告警信息的方法流程图；
图5是本发明实施例提供的一种在显示组件上显示的定位标记点的基准位置和允许偏差范围的示意图；
图6是本发明实施例提供的另一种在显示组件上显示的定位标记点的基准位置和允许偏差范围的示意图；
图7是本发明实施例提供的一种在显示组件上显示的定位标记点的基准位置、实时位置和允许偏差范围的示意图；
图8是本发明实施例提供的一种位置调整装置的框图；
图9是本发明实施例提供的另一种位置调整装置的框图；
图10是本发明实施例提供的又一种位置调整装置的框图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
图1是本发明实施例提供的一种放射治疗系统的结构示意图，如图1所示，该放射治疗系统可以包括：位置调整装置01(也可以称为交互式运动管理装置)和位置追踪系统02(如光学红外追踪系统)。
其中，位置追踪系统02用于实时追踪患部(例如头部、体部等)预先设置的定位标记点(如红外小球)的位置；位置调整装置01用于获取患部预先设置的定位标记点的实时位置，并根据实时位置和基准位置，通过显示的方式和/或通过语音的方式输出用于提示患者调整其位置的位置调整信息。
在一种实施方式中，参考图1，位置调整装置01与位置追踪系统02连接，位置调整装置01可以直接从位置追踪系统02实时获取患部预先设置的定位标记点的实时位置。在另一种实施方式中，位置追踪系统02与控制系统连接，位置调整装置01与控制系统连接，这样，位置追踪系统02实时的将患部预先设置的定位标记点的实时位置发送给控制系统，位置调整装置01从控制系统实时的获取患部预先设置的定位标记点的实时位置。当然，位置追踪系统02也可集成在控制系统中，从位置追踪系统02获取患部预先设置的定位标记点的实时位置；或者，位置追踪系统02集成于位置调整装置01中，位置调整装置01直接获取患部预先设置的定位标记点的实时位置，从而减少了放射治疗系统的生产成本。
图2是本发明实施例提供的一种位置调整方法的流程图，该方法可以应用于图1所示的位置调整装置01中。以该位置调整方法应用于放射治疗的过程中为例进行说明。如图2所示，该方法可以包括：
步骤201、获取患部预先设置的定位标记点的实时位置。
由于在放射治疗的过程中，患者可能会发生非预期的微小动作或移动，造成患部预先设置的定位标记点的位置发生偏移，从而影响放射治疗的精度。因此为了检测定位标记点的位置与基准位置之间是否出现偏差，保证放射治疗的精度，位置追踪系统02可以实时检测定位标记点的实时位置。该位置调整装置01可以实时获取该位置追踪系统02检测到的定位标记点的实时位置。
步骤202、获取定位标记点的基准位置。
在本发明实施例中，该定位标记点的基准位置是指在放射治疗之前，当完成对患者的摆位后，该定位标记点所处的位置。
由于仅获取定位标记点的实时位置无法确定定位标记点是否发生偏移，因此在本发明实施例中，该位置调整装置01还可以预先获取该定位标记点的基准位置。当该定位标记点的实时位置与该基准位置不重合时，即可以确定该定位标记点发生偏移；当该定位标记点的实时位置与该基准位置重合时，即可以确定该定位标记点未发生偏移。
步骤203、根据实时位置和基准位置，通过显示的方式输出位置调整信息和/或通过语音的方式输出位置调整信息，位置调整信息用于指示患者调整其位置。
在本发明实施例中，位置调整装置01可以根据获取到的定位标记点的实时位置和基准位置，通过显示和/或语音的方式输出用于指示患者调整其位置的位置调整信息。
可选的，位置调整装置01可以将获取到的患部定位标记点的实时位置和基准位置作为位置调整信息，显示给患者，以便患者根据观察到的实时位置和基准位置，自行调整其位置。和/或，该位置调整装置01还可以根据该实时位置和基准位置，确定位置调整方式，并通过语音的方式输出包括该位置调整方式的位置调整信息。患者可以根据接收到的位置调整方式，自行调整其位置。
由于该位置调整装置01可以实时获取定位标记点的实时位置，因此可以在患者调整其位置后，根据调整后的定位标记点的实时位置，继续输出位置调整信息，以便患者再根据该位置调整装置01重新输出的位置调整信息，也即是个根据自己的实时调整情况，继续针对性的调整其位置。
综上所述，本发明实施例提供了一种位置调整方法，该方法可以根据获取 到的患部预先设置的定位标记点的实时位置和该定位标记点的基准位置，通过显示和/或语音的方式输出用于提示患者调整其位置的位置调整信息。由于该方法可以使得患者根据输出的位置调整信息，自行调整其位置，无需再频繁移动治疗床，避免了不断移动治疗床造成累积机械误差，影响放射治疗精度的问题。
图3是本发明实施例提供的另一种位置调整方法的流程图，该方法可以应用于图1所示的位置调整装置01中。以该位置调整方法应用于放射治疗的过程中为例进行说明。如图3所示，该方法可以包括：
步骤301、获取患部预先设置的定位标记点的实时位置。
由于在放射治疗的过程中，患者可能会发生非预期的微小动作或移动，造成患部预先设置的定位标记点的位置发生偏移，从而影响放射治疗的精度。因此为了检测定位标记点的位置与基准位置之间是否出现偏差，位置追踪系统02可以实时检测定位标记点的实时位置。该位置调整装置01可以实时获取该位置追踪系统02检测到的定位标记点的实时位置。
步骤302、获取定位标记点的基准位置。
在本发明实施例中，该定位标记点的基准位置是指在放射治疗之前，当完成对患者的摆位后，该定位标记点的位置。并且，位置调整装置01获取到的定位标记点的基准位置可以是定位标记点在指定坐标系中的坐标值。该指定坐标系可以是设备坐标系。由于放射治疗系统一般包括：放射治疗设备以及位置追踪系统。因此该指定坐标系可以为放射治疗设备对应的设备坐标系或者位置追踪系统的红外坐标系。
由于仅获取定位标记点的实时位置无法确定定位标记点是否发生偏移，因此在本发明实施例中，该位置调整装置01还可以预先获取该定位标记点的基准位置。当该定位标记点的实时位置与该基准位置不重合时，即可以确定该定位标记点发生偏移；当该定位标记点的实时位置与该基准位置重合时，即可以确定该定位标记点未发生偏移。
作为一种可选的实现方式，位置调整装置01可以在完成对患者的摆位时，获取定位标记点的位置，并将获取到的位置确定为基准位置。
在本发明实施例中，在进行放射治疗之前，可以在患者的体表设置定位标记的，并对患者进行摆位操作，以便将患者患部的靶点与放射治疗设备的射束 焦点对准。在摆位完成后，位置调整装置01可以直接获取该定位标记点的位置，并可以将该位置确定为定位标记点的基准位置。或者在完成对患者的摆位后，位置调整装置01还可以接收位置追踪系统02获取到的定位标记点的位置，并将该位置确定为基准位置。
作为另一种可选的实现方式，位置调整装置01可以在放射治疗之前从治疗计划中获取基准位置。
其中，该治疗计划是指治疗医师在对患者进行检查时，针对患者制定的治疗计划。例如，在对患者进行放射治疗之前，可以先对患者进行电子计算机断层(Computed Tomography，CT)扫描，以获取患者的CT图像。治疗医师可以从该CT图像中获取到患者的患部情况(如患部位置和患部大小)。进而治疗医师可以根据该CT图像在治疗计划中记载患部定位标记点的基准位置，并将该定位标记点的基准位置，输入至位置调整装置01中。通过接收治疗医师按照治疗计划输入的基准位置，可以减少位置调整装置01的存储空间。
或者治疗医师也可以在放射治疗之前，将制定的治疗计划提前存储至位置调整装置01中，以便位置调整装置01从该治疗计划中直接获取定位标记点的基准位置。通过从治疗计划中获取定位标记点的基准位置，可以提高获取效率，且由于无需专门设置用于获取基准位置的位置追踪系统02，减少了放射治疗系统的生产成本。
可选的，在本发明实施例中，位置调整装置01还可以存储患者的身份信息和患部信息与定位标记点的基准位置的对应关系。以便治疗医师在制定某个患者的治疗计划时，可以根据获取到的该患者的身份信息和患部信息，参考位置调整装置01中存储的对应关系，确定该患者对应的定位标记点的基准位置，也即是，治疗医师可以在该对应关系中获取与该患者的身份信息和患部信息均相似或相同的患者对应的定位标记点的基准位置，并将该获取到的基准位置确定为该患者的定位标记点的基准位置。
步骤303、获取允许偏差范围。
在本发明实施例中，由于在进行放射治疗的过程中，当患者的移动幅度较小，也即是定位标记点的实时位置和基准位置的偏差较小时，定位标记点的位置与基准位置之间可能并未发生偏差，此时不会对放射治疗造成很大影响，因此可能不需要患者调整位置。
而当患者的移动幅度较大，也即是定位标记点的实时位置和基准位置的偏差较大，造成定位标记点的位置与基准位置之间的偏差也较大，此时可能需要立即关闭放射源，以防止对患者的正常组织造成伤害。
因此在本发明实施例中，位置调整装置01还可以获取定位标记点的允许偏差范围，以便根据该允许偏差范围，确定是否需要调整位置或者确定是否需要停止放射治疗。并且，该位置调整装置01获取到的允许偏差范围可以为在指定坐标系中，与定位标记点的基准位置的距离值上限。
作为一种可选的实现方式，位置调整装置01中可以预先存储有患者的身份信息和患部信息与允许偏差范围的对应关系，该对应关系中的允许偏差范围可以是治疗医师提前设定的。位置调整装置01可以根据获取到的患者的身份信息和患部信息，确定当前患者对应的允许偏差范围。并直接从预先存储的对应关系中获取允许偏差范围，可以提高获取允许偏差范围的效率。其中，该身份信息可以包括：患者的年龄和患者的性别中的至少一种；患部信息可以包括：患部的肿瘤类型、肿瘤部位以及肿瘤大小中的至少一种。
示例的，假设位置调整装置01中存储的患者的身份信息包括：患者的年龄和患者的性别；存储的患者的患部信息包括：肿瘤部位。相应的，位置调整装置01中存储的患者的身份信息和患部信息与允许偏差范围对应关系可以如表1所示。例如，参考表1，某患者的身份信息为：年龄4岁，性别男；该患者的患部信息为：肺部肿瘤，与该患部信息和身份信息对应的允许偏差范围可以为0至x1毫米(mm)。
表1
患部信息 身份信息 允许偏差范围
肺部肿瘤 年龄：4岁；性别：男 0至x1mm
脑部肿瘤 年龄：24岁；性别：女 0至x2mm
进一步的，假设在放射治疗之前，位置调整装置01获取到某患者的身份信息为：年龄：24岁；性别：女，患部信息为：脑部肿瘤，则位置调整装置01可以根据上述表1所示的对应关系，直接确定该患者对应的允许偏差范围可以为0至x2mm。
需要说明的是，在本发明实施例中，在对患者进行放射治疗时，治疗医师还可以参考患者的实际移动幅度和移动次数对该位置调整装置01确定的允许 偏差范围的大小进行实时调整。
作为另一种可选的实现方式，位置调整装置01可以接收治疗医师输入的允许偏差范围。也即是治疗医师可以提前根据患者信息和患部信息，为患者确定其对应的允许偏差范围。通过接收治疗医师输入的允许偏差范围，可以提高获取到的允许偏差范围的可靠性和针对性。
示例的，假设某患者的身份信息为：性别男，年龄6岁；该患者的患部信息为：腿部肿瘤。由于男性儿童的活动幅度和活动次数一般较大，且由于该肿瘤位于腿部，因此为了避免由于该患者可能多动，而造成患部定位标记点发生偏移次数较多的问题。治疗医师可以为该患者制定一个较大的允许偏差范围：0至5mm；假设某患者的身份信息为：性别女，年龄26岁；该患者的患部信息为：腿部肿瘤。因此可以为该患者制定一个较小的允许偏差范围：0至3mm。治疗医师可以将制定的允许偏差范围输入至位置调整装置01中。
步骤304、检测实时位置与基准位置的偏差是否大于允许偏差范围。
在本发明实施例中，由于当实时位置与基准位置的偏差大于允许偏差范围时，定位标记点的位置与基准位置之间的偏差则会较大，此时放射源发出的放射线可能会照射到患者的正常组织，对患者造成不可预知的伤害。因此位置调整装置01还可以计算获取到的实时位置和基准位置的距离(即偏差)，并将该偏差与允许偏差范围进行对比，来检测实时位置与基准位置的偏差是否大于允许偏差范围。
当位置调整装置01检测到实时位置与基准位置的偏差大于允许偏差范围时，可以继续执行下述步骤305；当位置调整装置01检测到实时位置与基准位置的偏差不大于允许偏差范围时，可以继续执行下述步骤306。
步骤305、关闭放射源或者输出告警信息，告警信息用于指示关闭放射源。
在本发明实施例中，当位置调整装置01检测到定位标记点的实时位置与基准位置的偏差大于允许偏差范围时，为了避免放射源对患者的正常组织造成伤害，位置调整装置01可以直接控制放射治疗设备的放射源关闭，以停止放射治疗。也即是位置调整装置01可以主动控制放射源的工作状态。通过直接关闭放射源，可以有效提高放射治疗的可靠性。
或者位置调整装置01还可以在检测到定位标记点的实时位置与基准位置的偏差大于允许偏差范围时，输出用于指示关闭放射源的告警信息。
可选的，该位置调整装置01可以包括告警装置，或者该位置调整装置01可以连接有告警装置。当实时位置与基准位置的偏差大于允许偏差范围时，位置调整装置01可以通过该告警装置输出告警信息。治疗医师在接收到该告警信息时，可以关闭放射源。
示例的，该告警装置可以为声光报警器，相应的，该告警信息可以为声光告警信号；或者，该告警装置还可以为语音提示组件，相应的，该告警信息可以为语音告警信息。例如，该语音告警信息可以为“关闭放射源”的语音。
图4是本发明实施例提供的一种当实时位置与基准位置的偏差大于允许偏差范围时，关闭放射源或者输出告警信息的方法流程图，如图4所示，该方法可以包括：
步骤3051、当实时位置与基准位置的偏差大于允许偏差范围时，检测实时位置与基准位置的偏差大于允许偏差范围的持续时长是否大于时长阈值。
在本发明实施例中，为了保证放射治疗的效率，当实时位置与基准位置的偏差大于允许偏差范围的持续时长较短时，可能并无需关闭放射源。因此位置调整装置01还可以检测实时位置与基准位置的偏差大于允许偏差范围的持续时长是否大于时长阈值。其中，该时长阈值可以是指位置调整装置01中预先设置的时长阈值，且针对不同的身份信息和不同的患部信息，该时长阈值可以不同，即该位置调整装置01中可以预先存储有患者的身份信息和患部信息与时长阈值的对应关系。以便位置调整装置01可以根据获取到的患者的身份信息和患部信息，直接参考该对应关系，确定该患者对应的时长阈值。也即是该位置调整装置01可以在该对应关系中获取与该患者的身份信息和患部信息均相似或相同的患者对应的时长阈值，并将该获取到的时长阈值确定为该患者的时长阈值。
当位置调整装置检测到实时位置与基准位置的偏差大于允许偏差范围的持续时长大于时长阈值时，可以继续执行下述步骤3052；当位置调整装置检测到实时位置与基准位置的偏差大于允许偏差范围的持续时长不大于时长阈值时，可以继续执行下述步骤306，也即是可以提示患者调整位置，继续对患者进行放射治疗。
示例的，假设位置调整装置01检测到的实时位置和基准位置的偏差为5mm，且获取到的允许偏差范围为3mm，则位置调整装置01可以确定实时位 置与基准位置的偏差大于允许偏差范围。此时，位置调整装置01可以继续检测实时位置与基准位置的偏差大于允许偏差范围的持续时长是否大于时长阈值。假设时长阈值为2秒(s)，位置调整装置01检测到的实时位置与基准位置的偏差大于允许偏差范围的持续时长为3s，则位置调整装置01可以确定实时位置与基准位置的偏差大于允许偏差范围的持续时长大于该时长阈值，此时，位置调整装置01可以继续执行下述步骤3052。
步骤3052、关闭放射源或者输出告警信息。
在本发明实施例中，当位置调整装置01检测到实时位置与基准位置的偏差大于允许偏差范围的持续时长大于时长阈值时，此时，位置调整装置01可以直接关闭放射源或者输出提示治疗医师关闭放射源的告警信息。
步骤306、根据实时位置、基准位置以及允许偏差范围，通过显示的方式输出位置调整信息和/或通过语音的方式输出位置调整信息。
在本发明实施例中，当位置调整装置检测到实时位置与基准位置的偏差不大于允许偏差范围，或者检测到实时位置与基准位置的偏差大于允许偏差范围，但实时位置与基准位置的偏差大于允许偏差范围的持续时长不大于时长阈值时，位置调整装置可以根据实时位置、基准位置以及允许偏差范围，通过显示的方式输出位置调整信息和/或通过语音的方式输出位置调整信息。
并且在本发明实施例中，当患者根据位置调整信息调整其位置后，位置调整装置01可以继续实时获取患者调整其位置后的定位标记点的实时位置，并将该获取到的实时位置作为位置调整信息输出给患者，以便患者根据自己的实时调整情况，继续针对性的调整其位置。
作为一种可选的实现方式，该位置调整信息可以包括：指定坐标系，以及实时位置和基准位置在指定坐标系中的相对位置。该位置调整装置可以通过显示的方式和/或通过语音的方式输出该位置调整信息。
在该实现方式中，以通过显示的方式输出位置调整信息为例进行说明：
在本发明实施例中，该位置调整装置01可以包括显示组件，或者该位置调整装置01可以与显示组件连接。该位置调整装置01可以通过该显示组件输出该位置调整信息。
该指定坐标系可以包括放射治疗设备对应的设备坐标系或者位置追踪系统的红外坐标系。且显示组件上显示的指定坐标系可以为六维坐标系，也即是 显示组件上显示的可以是一副六维空间的立体图形。
可选的，该位置调整信息还可以包括允许偏差范围在该指定坐标系中的位置，和/或定位标记点的历史运动轨迹。
相应的，位置调整装置01可以将指定坐标系、实时位置和基准位置在指定坐标系中的相对位置以及允许偏差范围均显示在显示组件上，患者可以通过观察该显示组件上显示的位置调整信息调整其位置。
示例的，图5是本发明实施例提供的一种在显示组件L上显示的定位标记点的基准位置和允许偏差范围的示意图，如图5所示，位置调整装置01可以采用十字标识将获取到的定位标记点的基准位置显示在显示组件L上。或者，位置调整装置01还可以采用圆点标识将获取到的定位标记点的基准位置显示在显示组件L上，本发明实施例对定位标记点的基准位置的显示形式不做限定。
进一步的，如图5所示，位置调整装置01在显示该允许偏差范围时，可以在该指定坐标系内，以该基准位置为圆心，以距离值上限d为半径确定一个圆形，并显示该圆形。该圆形所限定的范围即为患部的允许偏差范围。
可选的，位置调整装置01还可以将获取到的允许偏差范围根据范围大小划分为不同的级别，以便患者根据该不同的级别确定是否需要调整位置。图6是本发明实施例提供的一种四个级别的允许偏差范围划分为示意图，图6中共包括四个圆形，该四个圆形可以分别代表四个不同级别的允许偏差范围。
进一步的，图7是本发明实施例提供的一种在显示组件L上显示的实时位置、基准位置在指定坐标系中的相对位置以及允许偏差范围的示意图。如图7所示，该显示组件L可以以十字标识基准位置，例如图7中的十字标记B，可以以圆点标识实时位置，例如图7中的圆点A。并可以以圆形标识允许偏差范围。此时，患者可以观察到患部定位标记点即将超出允许偏差范围，且可以观察到患部定位标记点的基准位置位于十字标记B，患者可以自行调整其位置，使得该定位标记点向十字标记运动。
可选的，该显示组件L上还可以实时显示定位标记点的历史运动轨迹。位置调整装置01还可以存储该定位标记点的历史运动轨迹，以便治疗医师可以根据该定位标记点的运动轨迹，确定患者的运动幅度和运动次数的大小。
可选的，该显示组件可以为直接设置在放射治疗设备中的治疗床上方的显示屏。为了便于患者进行观察，该显示屏可以与治疗床平行设置，并且该显示 屏可以设置在便于患者观察的视线范围内。或者该显示组件还可以为带有显示屏的眼镜，患者仅需要佩戴该包括显示屏的眼镜，即可以观察该位置调整信息，提高了患者观察的便利性。
需要说明的是，在本发明实施例中，还可以通过显示组件，以不同的显示效果(如不同的显示颜色)显示实时位置、基准位置、允许偏差范围和运动轨迹。通过以不同的显示效果显示，可以便于患者观察，从而提高患者调整位置的效率。
相应的，如图6所示，当位置调整装置01将允许偏差范围划分为多个级别时，显示组件L还可以以不同的显示效果(如不同的线条)显示允许偏差范围的不同级别，以便患者确定定位标记点当前处于哪个级别的允许偏差范围内，进而便于患者确定是否需要调整位置。
作为另一种可选的实现方式，该位置调整装置01还可以先根据预先获取到的实时位置与基准位置的偏差，确定位置调整方式，然后通过显示的方式和/或语音的方式输出包括位置调整方式的位置调整信息。
在该实现方式中，以通过语音的方式输出该包括位置调整方式的位置调整信息为例进行说明：
在本发明实施例中，该位置调整装置01可以包括语音提示组件。例如，该位置调整装置01可以包括扬声器，该位置调整装置01可以通过扬声器将确定的位置调整方式直接播报给患者。或者该位置调整装置01可以与语音提示组件连接。例如，该语音提示组件可以包括：音箱或者耳机，该位置调整装置01可以通过有线或者无线的方式与该语音提示组件建立连接。相应的，该位置调整装置01可以将确定的位置调整方式发送至语音提示组件，然后该语音提示组件可以将该包括位置调整方式的位置调整信息播报给患者。
其中，该位置调整方式可以包括位置调整的方向和位置调整的距离。位置调整装置01可以根据实时位置与基准位置的偏差，通过预设算法计算出调整位置的方向和需要调整的距离。该预设算法是指一种根据实时位置和基准位置的偏差以及相对方向，确定调整方向和调整距离，以使得实时位置与基准位置对准的算法。进而，位置调整装置01可以将确定的位置调整方式发送至语音提示组件，语音提示组件可以通过语音播报的方式，告知患者位置调整的方式。
示例的，假设位置调整装置01根据实时位置和基准位置的偏差，确定的 位置调整方式为：向右移动Xmm，该语音提示组件为与位置调整装置01连接的耳机。则位置调整装置01可以将该向右移动Xmm的位置调整信息通过耳机播报给患者，以便患者根据该位置调整信息调整其位置。
需要说明的是，上述步骤301至306的位置调整方法还可以应用于对患者进行摆位的过程中。在对患者进行摆位时，治疗医师可以根据位置调整信息，确定患部定位标记点是否位于允许偏差范围内，以及确定患部定位标记点的实时位置和基准位置的偏差。并且治疗医师可以根据位置调整信息，训练患者主动参与摆位，从而保证摆位的准确性。
在本发明实施例中，该位置调整装置01还可以在对每个患者进行放射治疗后，存储获取到的每个患者的定位标记点的基准位置、允许偏差范围以及患者运动轨迹等。例如，该位置调整装置01可以分类存储每个患者的定位标记点的基准位置、允许偏差范围以及患者运动轨迹。且位置调整装置01可以根据患者的身份信息或者患者的患部信息等特征，对获取到的每个患者的定位标记点的基准位置、允许偏差范围以及患者运动轨迹进行分类存储。以便治疗医师在治疗某个患者时，可以根据位置调整装置01中存储的不同类型的患者对应的定位标记点的基准位置、允许偏差范围以及患者运动轨迹，为该患者制定初步治疗计划。提高对患者进行放射治疗的效率。
还需要说明的是，由于某些患者的自控能力较差，可能无法自行调整并控制其位置。因此在对患者进行放射治疗之前，治疗医师还可以先对患者进行一次模拟放射治疗，以便确定患者是否适用于上述步骤301至306的位置调整方法。也即是，治疗医师可以在对某患者进行模拟治疗时，根据输出的位置调整信息，确定该患者的移动幅度和移动次数的大小。当该患者的移动幅度和移动次数较大，难以自行调整并控制其位置时，治疗医师可以在对该患者进行放射治疗之前，直接对该患者进行药物麻醉，从而进一步确保放射治疗时的可靠性。其中，模拟放射治疗是指未开启放射源对患者进行模拟放射治疗的方法。
步骤307、获取预设时间段内，实时位置与基准位置的偏差大于允许偏差范围的偏差次数。
在本发明实施例中，为了确定患者移动幅度和运动次数的大小，也即是确定患者是否多动，位置调整装置01还可以在对患者进行放射治疗之前，获取预设时间段内，实时位置与基准位置的偏差大于允许偏差范围的偏差次数。其 中，该预设时间段是指位置调整装置01中预先设置的时间段，该预设时间段可以为10分钟，或者1小时。
步骤308、根据偏差次数，确定针对患者的定位方式。
在本发明实施例中，该定位方式可以包括：有创定位和无创定位。有创定位是指采用头钉和头架等工具将患者固定在治疗床上的定位方式；无创定位是指采用面膜将患者固定在治疗床上的定位方式。对于移动次数和移动幅度较大的患者，可以在放射治疗之前，采用有创定位方式将其固定在治疗床上，以保证放射治疗的可靠性和精度；相应的，对于移动次数和移动幅度较小的患者，可以在放射治疗之前，采用无创定位方式将其固定在治疗床上。
在本发明实施例中，当位置调整装置01检测到偏差次数大于次数阈值时，可以确定该患者的移动次数和移动幅度较大，也即是可以确定针对该类患者的定位方式可以为有创定位。当位置调整装置01检测到偏差次数不大于次数阈值时，可以确定该患者的移动次数和移动幅度较小，也即是可以确定针对该类患者的定位方式可以为无创定位。其中，该次数阈值可以是指位置调整装置01中预先设置的次数阈值，针对不同的患者，该次数阈值可以不同。
示例的，假设次数阈值为6次，预设时间段为1小时，位置调整装置01在该1小时内，获取到实时位置和基准位置大于允许偏差范围的偏差次数为5次。位置调整装置01可以检测到偏差次数小于该次数阈值，此时，位置调整装置01可以确定针对该患者的定位方式为无创定位。
可选的，在本发明实施例中，位置调整装置01还可以获取患者的其他信息(如患者的身份信息和患部信息)。位置调整装置01可以在对患者进行放射治疗之前，结合患者的身份信息、患部信息以及偏差次数，对该患者的移动次数和移动幅度进行计分。相应的，当计算得到的分数大于分数阈值时，可以确定针对患者的定位方式为有创定位；当计算得到的分数不大于分数阈值时，可以确定针对患者的定位方式为无创定位。其中，该分数阈值可以是指位置调整装置01中预先存储的分数值。通过参考各种信息确定针对患者的定位方式，可以使得制定的定位方式更有针对性。
需要说明的是，本发明实施例提供的位置调整方法的步骤的先后顺序可以进行适当调整，步骤也可以根据情况进行相应增减。任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化的方法，都应涵盖在本发 明的保护范围之内，因此不再赘述。
综上所述，本发明实施例提供了一种位置调整方法，该方法可以根据获取到的患部预先设置的定位标记点的实时位置和该定位标记点的基准位置，通过显示和/或语音的方式输出用于提示患者调整其位置的位置调整信息。由于该方法可以使得患者根据输出的位置调整信息，自行调整其位置，无需再频繁移动治疗床，避免了不断移动治疗床造成累积机械误差，影响放射治疗精度的问题。
图8是本发明实施例提供的一种位置调整装置的框图，如图8所示，该位置调整装置可以包括：
第一获取模块401，用于获取患部预先设置的定位标记点的实时位置。
第二获取模块402，用于获取该定位标记点的基准位置。
输出模块403，用于根据实时位置和基准位置，通过显示的方式输出位置调整信息和/或通过语音的方式输出位置调整信息，该位置调整信息用于指示患者调整其位置。
综上所述，本发明实施例提供了一种位置调整装置，该装置包括根据第一获取模块获取到的患部预先设置的定位标记点的实时位置，以及第二获取模块获取到的定位标记点的基准位置，通过显示和/或语音的方式输出用于提示患者调整其位置的位置调整信息的输出模块。由于该装置可以使得患者根据输出的位置调整信息，自行调整其位置，无需再频繁移动治疗床，避免了不断移动治疗床造成累积机械误差，影响放射治疗精度的问题。
可选的，在本发明实施例中，该位置调整信息可以包括：指定坐标系，以及实时位置和基准位置在该指定坐标系中的相对位置。
图9是本发明实施例提供的另一种位置调整装置的框图，如图9所示，该位置调整装置还可以包括：
第三获取模块404，用于获取允许偏差范围。
相应的，该输出模块403，可以用于：根据实时位置、基准位置以及允许偏差范围，通过显示的方式输出位置调整信息和/或通过语音的方式输出位置调整信息。
可选的，该第三获取模块404，可以用于：获取患者的身份信息和患部信息，以及获取与身份信息和患部信息对应的允许偏差范围。
进一步的，参考图9，该位置调整装置还可以包括：
检测模块405，用于在获取定位标记点的基准位置之后，检测实时位置与基准位置的偏差是否大于允许偏差范围。
可选的，该输出模块403，还可以用于当实时位置与基准位置的偏差大于允许偏差范围时，关闭放射源或者输出告警信息，该告警信息可以用于指示关闭放射源。
可选的，该输出模块403，还可以用于：
当实时位置与基准位置的偏差大于允许偏差范围时，检测该实时位置与基准位置的偏差大于允许偏差范围的持续时长是否大于时长阈值，当实时位置与基准位置的偏差大于允许偏差范围的持续时长大于时长阈值时，关闭放射源或者输出告警信息。
可选的，在本发明实施例中，该位置调整信息还可以包括：允许偏差范围在指定坐标系中的位置，和/或定位标记点的历史运动轨迹。
图10是本发明实施例提供的又一种位置调整装置的框图，如图10所示，该位置调整装置还可以包括：
第四获取模块406，用于获取预设时间段内，实时位置与基准位置的偏差大于允许偏差范围的偏差次数。
确定模块407，用于根据偏差次数，确定针对患者的定位方式。
其中，该定位方式可以包括：有创定位和无创定位。
可选的，该确定模块407，可以用于：
当偏差次数大于次数阈值时，确定针对患者的定位方式为有创定位；当偏差次数不大于次数阈值时，确定针对患者的定位方式为无创定位。
可选的，该输出模块403可以用于以不同的显示效果显示实时位置和基准位置。
可选的，该输出模块403可以用于：
根据实时位置与基准位置的偏差确定位置调整方式，并通过显示的方式和/或通过语音的方式输出包括位置调整方式的位置调整信息。
可选的，该第二获取模块402，可以用于：
在完成对患者的摆位时，获取定位标记点的位置，并将获取到的位置确定为基准位置。或者，在放射治疗之前，从治疗计划中获取基准位置。
综上所述，本发明实施例提供了一种位置调整装置，该装置包括根据第一获取模块获取到的患部预先设置的定位标记点的实时位置，以及第二获取模块获取到的定位标记点的基准位置，通过显示和/或语音的方式输出用于提示患者调整其位置的位置调整信息的输出模块。由于该装置可以使得患者输出的根据位置调整信息，自行调整其位置，无需再频繁移动治疗床，避免了不断移动治疗床造成累积机械误差，影响放射治疗精度的问题。
关于上述实施例中的位置调整装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本发明实施例提供了一种位置调整装置。该位置调整装置可以包括：处理器和存储器，该存储器中存储有指令，该指令可以由处理器加载并执行以实现如图2至图4任一所示的位置调整方法。
另外，本发明实施例提供了一种存储介质，该存储介质中存储有指令，当该存储介质在处理组件上运行时，可以使得处理组件执行如图2至图4任一所示的位置调整方法。
本发明实施例还提供了一种放射治疗系统，该放射治疗系统可以包括：如图8至图10任一所示的位置调整装置和位置追踪系统。图1示出了放射治疗系统的结构示意图。
应当理解的是，在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的装置和模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (20)

  1. 一种位置调整方法，其特征在于，所述方法包括：
    获取患部预先设置的定位标记点的实时位置；
    获取所述定位标记点的基准位置；
    根据所述实时位置和所述基准位置，通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息，所述位置调整信息用于指示患者调整其位置。
  2. 根据权利要求1所述的方法，其特征在于，
    所述位置调整信息包括：指定坐标系，以及所述实时位置和所述基准位置在所述指定坐标系中的相对位置。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    获取允许偏差范围；
    所述根据所述实时位置和所述基准位置，通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息，包括：
    根据所述实时位置、所述基准位置以及所述允许偏差范围，通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息。
  4. 根据权利要求3所述的方法，其特征在于，在获取所述定位标记点的基准位置之后，所述方法还包括：
    检测所述实时位置与所述基准位置的偏差是否大于所述允许偏差范围；
    当所述实时位置与所述基准位置的偏差大于所述允许偏差范围时，关闭放射源或者输出告警信息，所述告警信息用于指示关闭所述放射源。
  5. 根据权利要求4所述的方法，其特征在于，所述当所述实时位置与所述基准位置的偏差大于所述允许偏差范围时，关闭放射源或者输出告警信息，包括：
    当所述实时位置与所述基准位置的偏差大于所述允许偏差范围时，检测所 述实时位置与所述基准位置的偏差大于所述允许偏差范围的持续时长是否大于时长阈值；
    当所述实时位置与所述基准位置的偏差大于所述允许偏差范围的持续时长大于所述时长阈值时，关闭放射源或者输出告警信息。
  6. 根据权利要求3所述的方法，其特征在于，
    所述位置调整信息还包括：所述允许偏差范围在指定坐标系中的位置，和/或所述定位标记点的历史运动轨迹。
  7. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    获取预设时间段内，所述实时位置与所述基准位置的偏差大于所述允许偏差范围的偏差次数；
    根据所述偏差次数，确定针对所述患者的定位方式；
    其中，所述定位方式包括：有创定位和无创定位。
  8. 根据权利要求7所述的方法，其特征在于，所述根据所述偏差次数，确定针对所述患者的定位方式，包括：
    当所述偏差次数大于次数阈值时，确定针对所述患者的定位方式为有创定位；
    当所述偏差次数不大于所述次数阈值时，确定针对所述患者的定位方式为无创定位。
  9. 根据权利要求1所述的方法，其特征在于，所述通过显示的方式输出位置调整信息，包括：
    以不同的显示效果显示所述实时位置和所述基准位置。
  10. 根据权利要求1所述的方法，其特征在于，所述通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息，包括：
    根据所述实时位置与所述基准位置的偏差，确定位置调整方式；
    通过显示的方式和/或通过语音的方式输出包括所述位置调整方式的位置 调整信息。
  11. 根据权利要求1所述的方法，其特征在于，所述获取所述定位标记点的基准位置，包括：
    在完成对患者的摆位时，获取所述定位标记点的位置，并将获取到的位置确定为所述基准位置；
    或者，在放射治疗之前，从治疗计划中获取所述基准位置。
  12. 一种位置调整装置，其特征在于，所述装置包括：
    第一获取模块，用于获取患部预先设置的定位标记点的实时位置；
    第二获取模块，用于获取所述定位标记点的基准位置；
    输出模块，用于根据所述实时位置和所述基准位置，通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息，所述位置调整信息用于指示患者调整其位置。
  13. 根据权利要求12所述的装置，其特征在于，所述装置还包括：
    第三获取模块，用于获取允许偏差范围；
    所述输出模块，用于：
    根据所述实时位置、所述基准位置以及所述允许偏差范围，通过显示的方式输出位置调整信息和/或通过语音的方式输出所述位置调整信息。
  14. 根据权利要求13所述的装置，其特征在于，所述装置还包括：
    检测模块，用于在获取所述定位标记点的基准位置之后，检测所述实时位置与所述基准位置的偏差是否大于所述允许偏差范围；
    所述输出模块，还用于当所述实时位置与所述基准位置的偏差大于所述允许偏差范围时，关闭放射源或者输出告警信息，所述告警信息用于指示关闭所述放射源。
  15. 根据权利要求14所述的装置，其特征在于，所述输出模块，还用于：
    当所述实时位置与所述基准位置的偏差大于所述允许偏差范围时，检测所 述实时位置与所述基准位置的偏差大于所述允许偏差范围的持续时长是否大于时长阈值；
    当所述实时位置与所述基准位置的偏差大于所述允许偏差范围的持续时长大于所述时长阈值时，关闭放射源或者输出告警信息。
  16. 根据权利要求12所述的装置，其特征在于，所述输出模块，用于：
    以不同的显示效果显示所述实时位置和所述基准位置。
  17. 根据权利要求12所述的装置，其特征在于，所述输出模块，用于：
    根据所述实时位置与所述基准位置的偏差，确定位置调整方式；
    通过显示的方式和/或通过语音的方式输出包括所述位置调整方式的位置调整信息。
  18. 一种位置调整装置，其特征在于，所述装置包括：
    处理器和存储器，所述存储器中存储有指令，所述指令由所述处理器加载并执行以实现如权利要求1至11任一所述的位置调整方法。
  19. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质在处理组件上运行时，使得处理组件执行如权利要求1至11任一所述的位置调整方法。
  20. 一种放射治疗系统，其特征在于，所述放射治疗系统包括：如权利要求12至17任一所述的位置调整装置和位置追踪系统。
PCT/CN2018/099245 2018-08-07 2018-08-07 位置调整方法、装置及放射治疗系统 WO2020029089A1 (zh)

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