JP2012010759A - Interference determination device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an interference determination device which achieves shortening of a time from laying a patient on a laying table to finishing treatment in a charged particle beam irradiation apparatus.SOLUTION: The interference determination device 10 can communicate with a proton beam treatment device 2 having nozzles 25 that are movably disposed around a patient bed 21 on which a patient 9 is laid, and that irradiate a diseased site with a proton beam, and includes an interference determination terminal 7 acts independent from the proton beam treatment device 2 and determines presence/absence of interference between the nozzle 25, and the patient 9 and the patient bed 21 based on motion information of information relating to motion of the nozzle 25 and position information of information relating to positions of the patient bed 21 and the nozzle 25.

Description

  The present invention relates to an interference determination apparatus.

  For example, charged particle beam irradiation apparatuses used for cancer treatment and the like include charged particle beam irradiation nozzles, flat panel detectors, and PET-CT apparatuses (Positron Emission Tomography-Computed Tomography) and other examination equipment and mounting tables ( Including a robot arm that supports the mounting table). In such a charged particle beam irradiation apparatus, there is a possibility that these therapeutic examination equipment and the mounting table collide with each other because they move independently. For this reason, the position of the medical examination device and the mounting table is detected by the sensor, and when the two are likely to collide (interfere), the collision of each other is avoided by stopping the movement of the medical examination device. However, in such a method, when there is a problem in the reliability of the sensor, there is a possibility that a collision cannot be avoided. In addition, there is a problem that it is necessary to always check interference using a sensor, which is troublesome.

  As another collision avoidance method, a range in which the treatment inspection device and the mounting table do not interfere with each other is calculated in advance based on the design dimensions of the treatment inspection device and the mounting table, and the treatment testing device is moved only within the range. Things are also done. However, in such a method, since the medical examination apparatus can be moved only within a predetermined range, there is a problem that the movable range of the medical examination apparatus during treatment becomes narrow.

  In order to improve these, for example, in Patent Document 1, the possibility of interference between each of the above-described treatment inspection devices and the mounting table is confirmed by computer simulation based on the dimensions of the treatment inspection devices and the treatment plan of the patient. A technique for positioning each treatment testing device based on the result is disclosed. Further, for example, in Patent Document 2, the possibility of interference between each of the above-described treatment inspection devices and the mounting table is determined based on the treatment plan such as the size of each treatment inspection device, the irradiation time according to the affected part, the irradiation position, and the like. However, there is disclosed a technique for automatically stopping the driving of the therapeutic examination device when there is a possibility of interference.

JP-T-2001-503176 Japanese Patent Laid-Open No. 07-163670

  However, in the above-described technique, during treatment in the charged particle irradiation apparatus, the patient is lying on the mounting table, and the patient's body type information necessary for the determination of interference is acquired from the patient to determine the possibility of interference. In such a charged particle irradiation apparatus, it is necessary to acquire information necessary for determination of interference every time treatment is performed and to determine the presence or absence of interference, and until the treatment ends after the patient is placed on the mounting table. Will take longer.

  The present invention has been made to solve such a problem, and in the charged particle beam irradiation apparatus, it is possible to shorten the time from the placement of the patient on the placement table to the end of the treatment. An object is to provide an interference determination apparatus.

  In order to solve the above-described problem, an interference determination apparatus according to the present invention is configured to prevent interference between an irradiation unit that is movably disposed around a mounting table on which a patient is mounted and irradiates a patient with a charged particle beam, and the patient and the mounting table. An interference determination device for determining presence / absence, which is communicable with a charged particle beam irradiation device having an irradiation unit, operates independently of the charged particle beam irradiation device, and is operation information that is information on the movement of the irradiation unit And interference determination means for determining the presence or absence of interference based on position information that is information regarding the positions of the mounting table and the irradiation unit.

  In the interference determination apparatus of the present invention, the presence or absence of interference between the irradiation unit, the patient, and the mounting table is determined by interference determination means that operates independently of the charged particle beam irradiation apparatus. As described above, in the interference determination device of the present invention, the interference determination unit operates independently of the charged particle beam irradiation device, so that even if the charged particle beam irradiation device is used by another patient, The presence or absence of the interference can be determined. When the patient is treated in the charged particle beam irradiation apparatus, the operation information when it is determined that there is no interference determined by the interference determination unit is used to interfere the irradiation unit with the patient and the mounting table. Can be treated without As described above, the interference determination apparatus according to the present invention omits the above-described interference determination that has been performed after placing the patient on the mounting table, so that the patient can be treated immediately. It is possible to shorten the time from the placement until the treatment is completed.

  In the present invention, the charged particle beam irradiation apparatus may include an inspection unit that inspects the patient, and the interference determination unit may determine whether there is interference between the inspection unit, the patient, and the mounting table. Thereby, since it becomes possible to determine the presence / absence of interference between the irradiation unit and an object other than the irradiation unit, it is possible to further improve the accuracy of the presence / absence of interference.

  Moreover, in this invention, you may provide further the patient information acquisition means which operate | moves independently of a charged particle beam irradiation apparatus, and acquires the body part information regarding a patient's body type, and the treatment site | part information regarding a patient's treatment object site | part. In the present invention, since the patient information acquisition means operates independently of the charged particle beam irradiation apparatus, even if the charged particle beam irradiation apparatus is used by another patient, the body type information and the treatment site It is possible to acquire information regarding the charged particle beam dose required for treating the patient, the operation of the irradiation unit, and the like.

  The present invention may further include an operation information resetting unit that resets the operation information when the interference determination unit determines that there is interference.

  Further, the present invention further includes a control unit that controls the charged particle beam irradiation apparatus based on the operation information acquired when the interference is determined by the interference determination unit when it is determined that there is no interference. It may be. Thereby, it becomes possible to operate | move an irradiation part and a test | inspection part, without making it mutually interfere.

  The present invention may further include display means for displaying the presence or absence of interference determined by the interference determination means. Thereby, it becomes possible to explicitly present the result of the presence or absence of the interference to the user who uses the charged particle beam irradiation apparatus.

  Further, the present invention may further include operation information storage means for storing operation information acquired when the interference is determined by the interference determination means when the interference is determined. Thereby, the acquired operation information can be used later, or the operation information can be used in a charged particle beam irradiation apparatus equipped with similar equipment.

  According to the interference determination apparatus of the present invention, in the charged particle beam irradiation apparatus, it is possible to shorten the time from when the patient is placed on the placement table until the treatment is completed.

It is a figure which shows the whole structure of the proton beam treatment system which concerns on this embodiment. It is a front view which shows the structure of the proton beam treatment apparatus shown in FIG. It is side surface sectional drawing which shows the structure of the proton beam treatment apparatus shown in FIG. It is a block diagram which shows the function structure of the interference determination apparatus shown in FIG. It is a figure which shows an example of the hardware constitutions of the treatment plan terminal shown in FIG. It is the flowchart which showed the operation | movement in the interference determination apparatus of FIG. It is a block diagram which shows the function structure of the interference determination apparatus which concerns on other embodiment.

  A preferred embodiment of an interference determination apparatus according to the present invention will be described with reference to the drawings. In the description, the same reference numerals are used for the same elements or elements having the same function, and a duplicate description is omitted. In the present embodiment, a proton beam treatment system including an interference determination device will be described. FIG. 1 is a diagram showing an overall configuration of a proton beam therapy system according to this embodiment. FIG. 2 is a front view showing the configuration of the proton beam therapy apparatus. FIG. 3 is a side sectional view showing the configuration of the proton beam therapy apparatus.

  A proton beam treatment system 1 shown in FIG. 1 is a system for performing cancer treatment by irradiating a tumor in a patient's body with a proton beam (charged particle beam), and a nozzle (irradiation unit) 25 for irradiating the proton beam. A proton beam therapy device (charged particle beam irradiation device) 2 having a proton beam therapy device control terminal 4 for controlling the operation of each device of the proton beam therapy device 2, and the presence or absence of interference between the patient 9 and each device. The interference determination device 10 is included.

  As shown in FIGS. 2 and 3, the proton beam therapy apparatus 2 includes a patient bed (mounting table) 21 on which a patient 9 is placed, and a rotating gantry 24 that rotates about an axis L passing through an isocenter P. Yes. The proton beam treatment apparatus 2 irradiates a tumor in the body of the patient 9 (positioned at a position corresponding to the isocenter P) with a proton beam. The proton beam therapy apparatus 2 is disposed in a proton beam therapy room 11 formed on the first floor of the building, and is covered with a radiation shielding wall 11a to prevent exposure.

  The patient bed 21 includes a top plate 22 on which the patient 9 is placed and a robot arm 23 that supports the top plate 22. The robot arm 23 can move the position of the top plate 22 to position the patient 9 in an arbitrary position and an arbitrary direction. Since the robot arm 23 is installed on the building side, the robot arm 23 does not rotate together with the rotating gantry 24 described later.

  The rotating gantry 24 includes a PET-CT apparatus 26 and an X-ray imaging apparatus 28 as inspection apparatuses in addition to the above-described nozzle 25 which is a treatment apparatus, and rotates 360 degrees around an axis L passing through the isocenter P.

  The nozzle (irradiation unit) 25 functions as an irradiation port for irradiating a proton beam. The nozzle 25 moves in the circumferential direction around the axis L in accordance with the rotation of the rotating gantry 24, and can irradiate the patient 9 with a proton beam at an arbitrary angle.

  The PET-CT apparatus (examination unit) 26 includes a PET camera 27 that detects gamma rays emitted from a radiopharmaceutical administered into the patient's body. The PET camera 27 can be housed on the back side of the back panel 24a of the rotating gantry 24, and is driven in the direction A (see FIG. 3) by an air cylinder (not shown) or the like and placed on both sides of the patient 9 during treatment. .

  The PET-CT apparatus 26 includes an image processing unit (not shown) that processes image information acquired by the PET camera 27 and generates a PET image, and the generated PET image is stored in a storage unit. Displayed on a display unit such as a monitor. In the present embodiment, the above-described image processing unit, recording unit, display unit, and the like are arranged in a proton beam treatment control room 12 described later.

  The X-ray imaging apparatus (examination unit) 28 includes an X-ray source 29 that emits X-rays (photon rays) and a flat panel detector 30 that detects X-rays transmitted through the patient 9. An image (computer tomographic image) is acquired. Two X-ray sources 29 are provided, and are arranged at positions different from each other by 90 degrees in the rotation direction of the rotating gantry 24.

  The flat panel detector 30 can be stored on the back side of the back panel 24a of the rotating gantry 24, and is driven in the A direction (see FIG. 3) by an air cylinder (not shown) or the like at the time of treatment. It is arrange | positioned in the position which opposes on both sides. The X-ray imaging apparatus 28 creates an X-ray fluoroscopic image of the patient 9 based on the data detected by the flat panel detector 30 and measures the position of the patient 9 based on feature points such as bones and metal markers. Can do.

  The proton beam therapy apparatus control terminal 4 controls the operation of the proton beam therapy apparatus 2 based on the information output from the interference determination apparatus 10 and is a terminal that controls the operation of the rotating gantry 24 and the patient bed 21. is there. The proton beam therapy apparatus terminal 4 rotates the rotating gantry 24 to control the rotation positions of the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30. The proton beam therapy apparatus terminal 4 controls the positions of the PET camera 27 and the flat panel detector 30 in the A direction. Further, when the PET camera 27 has a mechanism for moving in the direction of approaching and separating from the isocenter P, the movement is controlled. The proton beam therapy apparatus terminal 4 controls the robot arm 23 to control the position of the top board (mounting table) 22 on which the patient is placed. For example, the proton beam therapy apparatus terminal 4 is installed in the proton beam therapy control room 12 formed on the first floor of the building, and the proton beam therapy control room 12 is adjacent to the proton beam therapy room 11 with the radiation shielding wall 11a interposed therebetween. Is provided. The proton beam therapy apparatus control terminal 4 may be a dedicated terminal that controls the proton beam therapy apparatus 2, or may be a known personal computer or workstation.

  Next, the interference determination apparatus 10 will be described. The interference determination apparatus 10 is a computer tomography apparatus (patient information acquisition means, hereinafter referred to as “CT (Computed Tomography) apparatus”) 5 and a proton beam therapy apparatus 2 used for diagnosis of a patient before treatment. And an interference determination terminal (interference determination means) 7 for determining the presence or absence of interference between each device such as the nozzle 25 and the patient bed 21. The CT apparatus 5, the treatment planning terminal 6, the interference determination terminal 7, the proton beam therapy apparatus control terminal 4, and the proton beam therapy apparatus 2 are connected by a network and can transmit and receive data. Moreover, the interference determination apparatus 10 operates independently from the proton beam therapy apparatus 2.

  The CT apparatus 5 is disposed in a CT imaging room 13 formed on the second floor of the building. The CT apparatus 5 includes an X-ray source (not shown) that emits X-rays, and a flat panel detector (not shown) that detects X-rays transmitted through the patient 9. Based on the detected data, a CT image of the patient 9 (information on the patient's body shape and treatment site information on the treatment target site of the patient) is generated. The CT apparatus 5 outputs the generated CT image to the treatment planning terminal 6 via the network. The CT apparatus 5 is not limited to the X-ray CT apparatus, and may be a PET-CT apparatus, or both the X-ray CT apparatus and the PET-CT apparatus may be used.

  The treatment planning terminal 6 generates a three-dimensional image of a cancer tumor (treatment target site) from the inputted CT image of the patient 9, and based on the position and size of the cancer tumor in the patient body, the proton beam treatment device The treatment plan in 2 is drawn up. The treatment plan formulated by the treatment plan terminal 6 includes a proton beam (treatment beam) dose necessary for treatment, a treatment beam irradiation direction (gantry angle), a patient bed position information during treatment (beam irradiation), In addition, there is positional information of the patient 9 with respect to the patient bed. The treatment plan terminal 6 is arranged in a treatment plan room 14 formed on the second floor of the building. As shown in FIG. 4, the treatment planning terminal 6 includes a motion information generation unit 61, a patient body type information generation unit 62, and a position information storage unit 63 as functional components.

  The motion information generation unit 61 is a part that generates motion information (treatment plan) that is information related to the movement of each device of the proton beam therapy apparatus 2. The operation information includes, for example, the angle of the rotating gantry 24, the flow line of the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30, the irradiation time and the irradiation amount of the proton beam irradiated from the nozzle 25, and the like. is there. The motion information generation unit 61 outputs such motion information to the interference determination terminal 7. Note that even when the operation information is automatically generated based on the CT image acquired by the CT apparatus 5 or the like, the operation information is generated by a user such as a doctor who has examined the CT image or the like. It may be configured as described above.

  The patient body type information generation unit 62 is a part that generates patient body type information from the CT image acquired by the CT apparatus 5. The patient body type information generation unit 62 generates body type information such as the height, body width, and body thickness of the patient 9 based on the CT image taken by the CT apparatus 5. The patient body type information generation unit 62 outputs the acquired body type information to the interference determination terminal 7.

  The position information storage unit 63 is a part that stores position information (information about the positions of the mounting table and the irradiation unit) that is information about the position and dimensions of each device of the proton beam therapy apparatus 2. The position information accumulating unit 63 is, for example, the position of the patient bed 21, the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30 in the initial state in the proton beam treatment apparatus 2 before treatment, and the positions such as the external dimensions. Accumulating information. The position information storage unit 63 outputs the position information to the interference determination terminal 7 in response to an output request from the interference determination terminal 7.

  FIG. 5 is a diagram illustrating an example of a hardware configuration of the treatment plan terminal 6. As shown in FIG. 5, the treatment planning terminal 6 includes a CPU 91 for executing an operating system, an application program, etc., a main storage unit 92 composed of ROM and RAM, an auxiliary storage unit 93 composed of a hard disk, a memory, etc., a keyboard , A receiving unit 94 such as a touch panel, and a display unit (display means) 95 such as a liquid crystal display. Each function realized by the functional components in the treatment planning terminal 6 described above causes the CPU 91 and the main storage unit 92 to read predetermined software, and under the control of the CPU 91, the input information is read or the main storage unit 92 and the auxiliary storage unit 93 are realized by reading and writing information. Thus, the treatment planning terminal 6 can be realized using a known personal computer, workstation, or the like.

  Returning to FIG. 1, the interference determination terminal 7 is arranged in a treatment planning room 14 formed on the second floor of the building. As shown in FIG. 4, the interference determination terminal 7 includes, as functional components, a motion information acquisition unit 71, a patient body type information acquisition unit 72, a position information acquisition unit 73, an interference determination unit (interference determination unit) 74, and a motion information output. Unit 75 and an operation information storage unit (operation information storage means) 76.

  The motion information acquisition unit 71 is a part that acquires the motion information output from the treatment planning terminal 6. The patient type information acquisition unit 72 is a part that acquires the patient type information output from the treatment planning terminal 6. The position information acquisition unit 73 is a part that acquires the position information output from the treatment planning terminal 6. The position, the outer dimension, and the like included in the position information are used to generate an outer model used for interference determination in the interference determination unit 74.

  The interference determination unit 74 is a part that performs interference determination in the proton beam therapy apparatus 2 based on the motion information, patient body type information, and position information acquired from the treatment planning terminal 6. The interference determination unit 74 determines whether or not there is interference between the patient 9 and the patient bed 21 and the nozzle 25. The interference determination unit 74 determines the presence or absence of interference between the patient and the patient bed 21 and other devices (PET camera 27, X-ray source 29, and flat panel detector 30).

  Specifically, the interference determination unit 74 calculates a flow line (movement trajectory) of the patient bed 21 based on the acquired motion information and position information, and places the patient bed 21 on the patient bed 21 based on the motion information and the patient body shape information. The flow line of the patient 9 is calculated. Further, the interference determination unit 74 calculates the flow lines of the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30 based on the position information and the operation information. Each of these flow lines has time information. The interference determination unit 74 is based on the flow lines of the patient 9 and the patient bed 21 calculated in this way and the flow lines of the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30. The presence or absence of mutual interference is determined. For example, when the interference determination unit 74 determines the interference between the patient bed 21 and the nozzle 25, if there is a line indicating the outer shape of the nozzle 25 in the internal range of the outer model of the patient bed 21, the patient bed 21 and the nozzle 25. Is determined to interfere. Note that the interference determination method is not limited to the above-described example, and publicly known software or the like can be used for such interference determination.

  The motion information output unit 75 is a part that outputs the result of interference determination to the treatment planning terminal 6 when the interference determination unit 74 determines that there is no interference. The motion information storage unit 76 is a part that stores the motion information used for the determination when the interference determination unit 74 determines that there is no interference.

  The interference determination terminal 7 can be realized using a known personal computer, a workstation, or the like, like the treatment planning terminal 6 described above. Results such as the presence or absence of the interference can be displayed on the display unit 95.

  The proton beam treatment room 11, the proton beam treatment control room 12, the CT imaging room 13, and the treatment plan room 14 are not necessarily divided into the first floor and the second floor. It is good also as a structure which arranges all the rooms on the 1st floor, and it does not divide into four rooms, the proton beam treatment room 11, the proton beam treatment control room 12, the CT imaging room 13, and the treatment plan room 14, but proton beam treatment. Arrangement of the treatment planning terminal 6 and the interference determination terminal 7 in the control room 12 may be appropriately changed as necessary, for example.

  Next, the operation of the interference determination apparatus 10 will be described with reference to FIG. FIG. 6 is a flowchart showing the operation of the interference determination apparatus of FIG.

  First, a CT image of the patient 9 is acquired by the CT apparatus 5 (S1). The CT apparatus 5 outputs the acquired CT image to the treatment plan terminal 6.

  Next, based on the CT image input from the CT apparatus 5, the motion information generation unit 61 performs each motion of the angle of the rotating gantry 24, the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30. Operation information such as the irradiation time and dose of the proton beam irradiated from the nozzle 25 is generated (S2). The motion information generation unit 61 outputs this motion information to the interference determination terminal 7.

  Next, based on the CT image input from the CT apparatus 5, the patient body shape information generation unit 62 generates body shape information such as the height, body width, and body thickness of the patient 9 (S3). The patient type information generation unit 62 outputs this type information to the interference determination terminal 7. Note that either of the steps S2 and S3 may be processed first, or may be performed simultaneously.

  Next, the motion information acquisition unit 71 receives motion information from the motion information generation unit 61 regarding the movement of the patient bed 21, the rotating gantry 24, the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30. Is acquired (S4). Specifically, the motion information acquisition unit 71 includes the angle of the rotating gantry 24, each flow line of the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30, and the proton beam irradiated from the nozzle 25. Operation information such as irradiation time is acquired. The motion information acquisition unit 71 outputs the motion information to the interference determination unit 74.

  Next, the patient body type information acquisition unit 72 acquires patient body type information from the patient body type information generation unit 62 (S5). Specifically, the patient body type information acquisition unit 72 requests the patient body type information generation unit 62 to output the body type information, and the height, body width, and the like of the patient 9 output in response to the request. Obtain body type information such as body thickness. The patient type information acquisition unit 72 outputs these patient type information to the interference determination unit 74.

  Next, the position information acquisition unit 73 acquires position information of the patient bed 21, the rotating gantry 24, the nozzle 25, the PET camera 27, the X-ray source 29, the flat panel detector 30, and the like (S6). Specifically, the position information acquisition unit 73 requests the position information storage unit 63 to output the position information, and the patient bed in the initial state in the proton beam therapy apparatus 2 output in response to the request. Position information such as the positions and outer dimensions of the nozzle 21, the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30 are acquired. The position information acquisition unit 73 outputs these position information to the interference determination unit 74. In addition, the process in step S4-step S6 may be processed in what order, and may be performed simultaneously.

  Next, the interference determination unit 74 converts the motion information input from the motion information acquisition unit 71, the patient body type information input from the patient body type information acquisition unit 72, and the position information input from the position information acquisition unit 73. Based on this, the presence or absence of interference between the patient 9 and the patient bed 21 and the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30 is determined (S7). Specifically, for example, the flow lines of the patient bed 21 and the patient 9 based on the motion information, the patient body shape information, and the position information, and each of the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30. Each of the flow lines is calculated, and it is determined whether or not these flow lines interfere with each other during treatment. Here, when the interference determination unit 74 determines that these flow lines interfere with each other at the time of treatment (S7: YES), the fact is displayed on the display unit 95 (S8), and the user such as a doctor is treated. The plan, that is, the review of movements of the patient bed 21, nozzle 25, PET camera 27, X-ray source 29, and flat panel detector 30 is urged.

  On the other hand, when the interference determination unit 74 determines that these flow lines do not interfere with each other during treatment (S7: NO), the motion information output unit 75 outputs the result of the interference determination to the treatment planning terminal 6 ( S9). At this time, an indication that there is no interference may be displayed on the display unit 95. Further, the operation information used for the determination may be stored in the operation information storage unit 76.

  As described above, steps S1 to S9 are steps until the patient 9 is placed on the patient bed 21 in the proton beam therapy apparatus 2. Hereinafter, step S10 and subsequent steps are steps after the patient 9 is placed on the patient bed 21.

  Next, the patient 9 is placed on the patient bed 21 of the proton beam therapy apparatus 2 (S10). At this time, the position of the cancer tumor is positioned at the irradiation point (isocenter) by moving the patient bed 21 in advance to a position that does not interfere with the therapeutic examination equipment such as the nozzle 25 based on the operation information and the interference determination described above. May be. In addition, if the information regarding this positioning is included in the motion information, the patient bed 21 is positioned according to the motion information.

  Next, the proton beam therapy apparatus control terminal 4 makes an angle of the rotating gantry 24, the nozzle 25, the PET camera 27, the X-ray source 29, and the flow line of the flat panel detector 30 with respect to the therapy planning terminal 6, the nozzle 25. Is requested to output operation information such as the irradiation time and dose of the proton beam irradiated from (S11). Next, the proton beam therapy apparatus control terminal 4 controls the proton beam therapy apparatus 2 based on the operation information output from the therapy planning terminal 6 (S12).

  In the interference determination apparatus 10 described above, the patient 9 and the patient bed 21, the nozzle 25, and the PET camera 27 are operated by the interference determination terminal 7 that operates independently from the proton beam therapy apparatus 2 and the proton beam therapy apparatus control terminal 4. The presence or absence of interference with the X-ray source 29 and the flat panel detector 30 is determined. Thus, in the interference determination apparatus 10 of this embodiment, since the interference determination terminal 7 operates independently of the proton beam therapy apparatus 2 and the proton beam therapy apparatus control terminal 4, the proton beam therapy apparatus 2 Even if it is used by other patients, the presence or absence of the interference can be determined. In other words, other patients can be treated while the interference determination terminal 7 determines the presence or absence of the interference. And when treating the said patient in the proton beam treatment apparatus 2, the patient 9 and the patient bed 21 and the nozzle 25, PET camera 27, PET camera 27 by using the operation information determined by the interference determination terminal 7 that there is no interference. Treatment can be performed without interference between the X-ray source 29 and the flat panel detector 30. As described above, in the proton beam therapy apparatus 2, the patient 9 and the patient bed 21 and the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detection that have been performed after placing the patient 9 on the patient bed 21. Since the determination of the interference with the vessel 30 can be omitted and the treatment site can be treated immediately, it is possible to shorten the time from when the patient 9 is placed on the patient bed 21 until the treatment is completed. .

  In addition, since the interference determination device 10 operates independently from the proton beam therapy device 2 and the proton beam therapy device control terminal 4, the interference determination and the proton beam therapy, which cannot be performed by the conventional proton beam therapy device 2, can be performed. Can be processed in parallel. Thereby, for example, it is determined that the flow line of the nozzle 25 and the flow line of the patient 9 interfere with each other, and even when the operation information regarding the movement of the nozzle 25 is reset, while treating another patient first, The interference determination terminal 7 that operates independently from the proton beam therapy apparatus 2 and the proton beam therapy apparatus control terminal 4 can determine the interference. Then, after the treatment of this patient is completed, the treatment can be performed based on the operation information that has been reset immediately. As a result, the proton beam therapy apparatus 2 can be used exclusively for proton beam therapy that can be performed only by the proton beam therapy apparatus 2, and the operating efficiency of the proton beam therapy apparatus 2 can be improved.

  The present invention has been described in detail above based on the above embodiment. However, the present invention is not limited to the above embodiment. The present invention can be modified in various ways as described below without departing from the scope of the invention.

  For example, as shown in FIG. 7, the interference determination apparatus 10 may include an operation information resetting unit (operation information resetting unit) 77 in addition to the configuration of the above embodiment. When the interference determination unit 74 determines that the interference between the patient 9 and the patient bed 21 and the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30 is present, Reset the operation information.

  In the proton beam therapy apparatus 2 of the above embodiment, the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30 have been described as examples rotating with the rotating gantry 24. However, the present invention is not limited thereto. For example, the nozzle 25, the PET camera 27, the X-ray source 29, and the flat panel detector 30 that are movable independently of each other may be used.

  Moreover, in the proton beam therapy apparatus 2 of the said embodiment, although it is set as the structure provided with the PET-CT apparatus 26 and the X-ray imaging apparatus 28 as a test | inspection part, the structure provided with another test | inspection part may be sufficient. The proton beam therapy apparatus 2 which is not provided may be used.

  Moreover, in the interference determination apparatus 10 of the said embodiment, although the presence or absence of interference with an irradiation part, a patient, and a mounting base and the presence or absence of interference with an inspection part, a patient, and a mounting base are determined, an inspection part, a patient, The interference determination apparatus 10 that does not determine the presence or absence of interference with the mounting table may be used.

  DESCRIPTION OF SYMBOLS 1 ... Proton treatment system, 2 ... Proton treatment apparatus, 4 ... Proton treatment apparatus control terminal, 5 ... Computer tomography apparatus (CT apparatus), 6 ... Treatment planning terminal, 7 ... Interference determination terminal, 9 ... Patient, DESCRIPTION OF SYMBOLS 10 ... Interference determination apparatus, 11 ... Proton radiotherapy room, 11a ... Radiation shielding wall, 12 ... Proton radiotherapy control room, 13 ... CT imaging room, 14 ... Treatment plan room, 21 ... Patient bed, 22 ... Top plate, 23 ... robot arm, 24 ... rotating gantry, 24a ... back panel, 25 ... nozzle, 26 ... PET-CT device, 27 ... PET camera, 28 ... X-ray imaging device, 29 ... X-ray source, 30 ... flat panel detector, 61 ... Motion information generation unit, 62 ... Patient body type information generation unit, 63 ... Position information storage unit, 71 ... Motion information acquisition unit, 72 ... Patient body type information acquisition unit, 73 ... Position information acquisition unit, 74 ... Interference determination unit, 75 ... operation information Power unit, 76 ... operation information storage section, 77 ... operation information resetting unit, L ... axis, P ... isocenter.

Claims (7)

An interference determination device that determines whether or not there is interference between an irradiation unit that is movably disposed around a mounting table on which a patient is mounted and irradiates the patient with a charged particle beam, and the patient and the mounting table,
The charged particle beam irradiation apparatus having the irradiation unit is capable of communicating, operates independently of the charged particle beam irradiation apparatus, operation information that is information on the movement of the irradiation unit, the mounting table, and the irradiation unit An interference determination device comprising: interference determination means for determining the presence or absence of the interference based on position information that is information relating to the position of the object. The charged particle beam irradiation apparatus has an inspection unit for inspecting the patient,
The interference determination apparatus according to claim 1, wherein the interference determination unit determines whether or not there is interference between the inspection unit, the patient, and the mounting table.   2. The apparatus according to claim 1, further comprising patient information acquisition means that operates independently of the charged particle beam irradiation apparatus and acquires body shape information related to the patient's body shape and treatment site information related to the treatment target site of the patient. Or the interference determination apparatus of 2.   The interference according to any one of claims 1 to 3, further comprising an operation information resetting unit that resets the operation information when the interference determination unit determines that the interference is present. Judgment device.   When the interference determination means determines that the interference is absent, the apparatus further includes a control means for controlling the charged particle beam irradiation apparatus based on the operation information acquired when the interference is determined. The interference determination apparatus according to any one of claims 1 to 4, wherein the apparatus is an interference determination apparatus.   The interference determination apparatus according to claim 1, further comprising display means for displaying the presence or absence of the interference determined by the interference determination means.   The apparatus further comprises operation information storage means for storing the operation information acquired when the interference is determined when the interference determination means determines that the interference is absent. The interference determination apparatus according to any one of the above.

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