JP7218860B2 - Medical device, control method for medical device, and program - Google Patents

Description

TECHNICAL FIELD Embodiments of the present invention relate to a medical device, a method of controlling a medical device, and a program.

Conventionally, when a therapeutic device such as a heavy ion radiotherapy device or a diagnostic device such as a CT (Computed Tomography) device performs treatment/diagnosis, plan information is generated prior to treatment/diagnosis. The planning information defines the irradiation angle, irradiation dose, etc. of the treatment beam to the subject when treatment is performed. By the way, in the medical field, treatment and diagnosis are not always performed in the same environment, and treatment and diagnosis are performed in different environments depending on the day, and treatment and diagnosis are performed in an environment different from the initially assumed environment. sometimes. In the conventional technology, there are cases where re-creation of plan information is necessary due to insufficient software ingenuity for absorbing environmental differences.

JP 2009-207524 A

The problem to be solved by the present invention is to provide a medical device, a control method for medical equipment, and a program that enable more efficient operation.

A medical device of an embodiment has an acquisition unit, a plan generation unit, and a control unit. The acquisition unit acquires first plan information based on the positional relationship between the medical device and the subject assumed when the plan information was created. The plan generator is included in the first plan information based on the difference between the positional relationship assumed when the plan information was created and the positional relationship between the medical device and the subject when the treatment or diagnosis was performed. By changing a part of the angle parameter, the second plan information is generated that inherits a part of the instruction contents for the medical device included in the first plan information. The control unit instructs the medical device based on the second plan information generated by the plan generation unit.
A medical device in another embodiment has an acquisition unit, a plan generation unit, and a control unit. The acquisition unit acquires first plan information based on a positional relationship between a medical device that operates with a subject placed on a bed, the bed, and the subject. The plan generation unit selects a part of the angle parameters included in the first plan information from changes in the positional relationship between the bed and the medical device and changes in the positional relationship between the bed and the subject. By changing based on at least one of them, the second plan information is generated that inherits a part of the instruction contents for the medical device included in the first plan information. The control unit instructs the medical device based on the second plan information generated by the plan generation unit.

According to this embodiment, it is possible to provide a medical device, a method of controlling a medical device, and a program that enable more efficient operation.

FIG. 2 is a diagram showing an example of the usage environment of the medical device 100 according to the first embodiment; FIG. 2 is a plan view of the bed apparatus 10; FIG. 2 is a side view of the bed apparatus 10; FIG. 2 is a perspective view of the bed apparatus 10; FIG. 1 is a diagram showing an example of the configuration of a medical device 100; FIG. 1 is a diagram schematically showing an example of a usage environment of a medical device 100 according to a first embodiment; FIG. The figure which shows an example of the scene where the plan production|generation part 120 produces|generates the 2nd plan information 154. FIG. FIG. 10 is a diagram showing an example of a screen IM1 displayed by the display unit 115 in the treatment planning stage; 4 is a flow chart showing an example of the flow of processing in the treatment planning stage executed by the plan generating unit 120 of the first embodiment; The figure which shows typically an example of the usage environment of 100 A of medical apparatuses which concern on 2nd Embodiment. FIG. 4 is a diagram exemplifying the relationship between a bed device 50, an irradiation device 70, and a medical device 100A; The figure which shows an example of the scene where 120 A of plan production|generation parts produce|generate 154 A of 2nd plan information. 9 is a flow chart showing an example of the flow of processing in the treatment planning stage executed by the plan generation unit 120A of the second embodiment; The figure which shows typically an example of the usage environment of the medical device 100B which concerns on 3rd Embodiment. The figure which shows an example of the scene where the plan production|generation part 120B produces|generates the 2nd plan information 154B. The figure which shows an example of the usage environment of 100 C of medical apparatuses which concern on 4th Embodiment. The figure which shows an example of screen IM2 displayed by 115 C of display parts in a treatment planning stage. The flowchart which shows an example of the flow of the process performed by 120 C of plan production|generation parts which concern on 4th Embodiment. The figure which shows an example of the usage environment of medical device 100D which concerns on 5th Embodiment. FIG. 12 is a diagram for explaining the sixth embodiment;

Hereinafter, a medical device, a method for controlling a medical device, and a program according to embodiments will be described with reference to the drawings.

(First embodiment)
[overall structure]
FIG. 1 is a diagram showing an example of the usage environment of a medical device 100 according to the first embodiment. The medical device 100 is connected to, for example, a bed device 10, radiation sources 20-1 and 20-2, detectors 22-1 and 22-2, and an irradiation device 30. FIG.

The bed device 10 includes a movable bed 12 and a bed driving device 14 . 2 is a plan view of the bed device 10, FIG. 3 is a side view of the bed device 10, and FIG. 4 is a perspective view of the bed device 10. FIG.

The bed driving device 14 includes, for example, a first yaw rotation mechanism 14A, a turntable 14B, a second yaw rotation mechanism 14C, a third yaw rotation mechanism 14E, a first pitch rotation mechanism 14G, and a roll rotation mechanism 14I. , a second pitch rotation mechanism 14K, a fourth yaw rotation mechanism 14M, and support members 14D, 14F, 14H, 14J, 14L, and 14N.

The first yaw rotation mechanism 14A uses the driving force output by the motor M1 to rotate the turntable 14B about the rotation axis S1 with respect to the floor surface on which the bed device 10 is installed.

The second yaw rotation mechanism 14C connects the turntable 14B and one end of the support member 14D, and uses the driving force output by the motor M2 to rotate the support member 14D around the rotation axis S2 with respect to the turntable 14B. rotate to

The third yaw rotation mechanism 14E connects the other end of the support member 14D and the support member 14F, and uses a driving force output by a motor (not shown) to rotate the support member 14F relative to the support member 14D along the rotation axis S3. rotate around.

The first pitch rotation mechanism 14G connects the support member 14F and the support member 14H, and uses a driving force output by a motor (not shown) to rotate the support member 14H around the rotation axis S4 with respect to the support member 14F. rotate.

The roll rotation mechanism 14I connects the support member 14H and the support member 14J, and rotates the support member 14J around the rotation axis S5 with respect to the support member 14H using a driving force output by a motor (not shown). .

The second pitch rotation mechanism 14K connects the support member 14J and the support member 14L, and uses a driving force output by a motor (not shown) to rotate the support member 14L relative to the support member 14J around the rotation axis S6. rotate.

The fourth yaw rotation mechanism 14M connects the support member 14L and the support member 14N, and uses a driving force output by a motor (not shown) to rotate the support member 14N around the rotation axis S7 with respect to the support member 14L. rotate. The support member 14N is connected to the bed 12. As shown in FIG.

With such a configuration, the bed apparatus 10 can translate the bed 12 in the X-axis direction, the Y-axis direction, and the Z-axis direction, and rotate it about the X-axis, the Y-axis, and the Z-axis. The position of the bed 12 given as an instruction signal to the bed driving device 14 is expressed as (x, y, z, ψ, Φ, θ). ψ is the rotation angle about the X-axis, Φ is the rotation angle about the Y-axis, and θ is the rotation angle about the Z-axis. The bed driving device 14 controls each of the motors described above so as to realize the positions represented in this way.

Returning to FIG. 1, the subject P placed on the bed 12 is irradiated with radiation from radiation sources 20-1 and 20-2, respectively, and the internal state of the subject P is detected by detectors 22-1 and 22-2. imaged by The detectors 22-1 and 22-2 are, for example, flat panel detectors (FPDs), image intensifiers, color image intensifiers, and the like. The captured transmitted image is output to the medical device 100 .

The irradiation device 30 has an irradiation gate 32 . The irradiation device 30 irradiates the treatment beam B toward the subject P from the irradiation gate 32 . The treatment beam B is, for example, heavy particle beam, X-ray, γ-ray, electron beam, proton beam, neutron beam, or the like. In the first embodiment, the irradiation device 30 is a fixed irradiation device, but it may be capable of adjusting the irradiation angle within a certain range. Further, the irradiation device 30 may be capable of adjusting the degree of convergence of the treatment beam B by a collimator that restricts the course of the treatment beam B. FIG.

[Medical device]
FIG. 5 is a diagram showing an example of the configuration of the medical device 100. As shown in FIG. The medical device 100 includes, for example, an input section 110 and a display section 115 . The input unit 110 is, for example, a keyboard, a mouse, a touch panel, a communication interface for communicating with other devices, and the like. Input unit 110 is an example of an “acquisition unit”. The display unit 115 is, for example, an LCD (Liquid Crystal Display) or an organic EL (Electroluminescence) display device.

The medical device 100 also includes a plan generator 120 , an image processor 122 , a display controller 124 and an irradiation controller 126 . These components are implemented by executing a program (software) by a hardware processor such as a CPU (Central Processing Unit). Some or all of these components are hardware (circuit part; circuitry) or by cooperation of software and hardware. The program may be stored in advance in a storage device (a storage device with a non-transitory storage medium) such as a HDD (Hard Disk Drive) or flash memory, or may be stored in a removable storage such as a DVD or CD-ROM. It may be stored in a medium (non-transitory storage medium) and installed by loading the storage medium into a drive device.

The medical device 100 has a storage unit 150 . The storage unit 150 may store the programs described above. Information such as first plan information 152 and second plan information 154 is stored in the storage unit 150 .

The medical device 100 geometrically transforms part of the plan information such as the treatment plan acquired by the input unit 110 to generate second plan information 154 as necessary. The treatment plan defines where, from which direction, and how much treatment beam B is to be irradiated when the affected part of the subject P is at what position. Specifically, the treatment plan includes setting information such as the body position of the subject P, the position of the bed 12, the irradiation angle of the treatment beam B, the setting of the collimator, and the irradiation pattern. A treatment plan is generated, for example, by a treatment planning device (not shown) and sent to the medical device 100 .

First, the display control unit 124 will be described. The display control unit 124 causes the display unit 115 to display the reference image and the transparent image. For example, when performing 3D-2D registration, the acquired CT image, the positions of the radiation sources 20-1 and 20-2, and the positions of the detectors 22-1 and 22-2 are displayed as reference images. , the display unit 115 is instructed to display the transmission images input from the detectors 22-1 and 22-2.

The image processing unit 122 compares the reference image and the transmission image to calculate the displacement amount of the bed 12 and sends the displacement amount to the bed device 10 . The bed device 10 moves the bed 12 so as to cancel out the amount of deviation.

The irradiation control unit 126 controls the irradiation device 30 to irradiate a predetermined position of the subject P with a predetermined dose according to the first plan information 152 or the second plan information 154 .

[Regarding treatment plan conversion]
The plan generation unit 120 stores information indicating the acquired treatment plan in the storage unit 150 as first plan information 152 . As a result, the first planning information 152 includes at least the body position of the subject P and the position of the bed 12 . Furthermore, the plan generation unit 120 converts some of the angle parameters included in the first plan information 152 into differences between the environment to which the first plan information 152 is applied and the environment to which the second plan information 154 is applied. second plan information 154 that inherits part of the instruction contents for the couch device 10 and the irradiation device 30 included in the first plan information 152 is generated. This principle applies to each embodiment described later.

FIG. 6 is a diagram schematically showing an example of the usage environment of the medical device 100 according to the first embodiment. In the figure, the medical device 100(2) corresponds to the medical device 100 described in this embodiment. The medical device 100(2) also receives the first plan information 152 generated for the medical device 100(1) that controls treatment in a treatment room (fixed irradiation room) having a horizontally fixed irradiation port. is acquired and converted into the first plan information 152 . The medical device 100(2) is connected to the medical device 100(1) via a LAN (Local Area Network) or the like. Further, in the treatment room (fixed irradiation room), the irradiation port may be movable within 180 degrees, or the irradiation port may be fixed in a direction other than the horizontal direction.

FIG. 7 is a diagram showing an example of a scene where the plan generation unit 120 generates the second plan information 154. As shown in FIG. It should be noted that illustration of the detectors 22-1 and 22-2 is omitted in subsequent drawings. The left diagram of FIG. 7 shows the orientation of the subject P and the position of the bed 12 in the first plan information 152, and the right diagram shows the orientation of the subject P and the position of the bed 12 in the second plan information 154. position. The first planning information 152 plans to irradiate the head of the subject P with the treatment beam B from the right side. Treatment beam B is planned to be delivered. However, in the second plan information 154, when compared with the first plan information 152, the rotation angle of the bed 12 around the Z axis is different by 180 degrees, and the orientation of the subject P with respect to the bed 12 is also different by 180 degrees. there is Such conversion becomes effective, for example, when the state of the bed device 10(2) controlled by the medical device 100(2) during treatment is assumed when the first plan information 152 is generated. This is a case where the state is different from that of the bed device 10(1). If the first plan information 152 is used as it is, it is necessary to rotate the bed 12 about the Z axis by 180 degrees in order to match the state of the couch device 10(2) with the state defined by the first plan information 152. There is However, when the bed 12 is rotated by 180 degrees around the Z axis, it takes time to drive the bed 12, which may increase the time required for preparation before treatment and treatment/diagnosis. In addition, it is necessary to perform calibration while the bed 12 is rotated 180 degrees, and it may take time to confirm the soundness of the apparatus. Note that the medical device 100(1) and the medical device 100(2) may be the same. The state of the couch device 10 is different from the state assumed when it was generated".

Therefore, in the plan generating unit 120 of the embodiment, the relationship between the irradiation device 30(2) and the subject P is maintained as defined in the first planning state 152, and the table 12 and the irradiation device 30(2) are and the positional relationship between the subject P and the bed 12, and by changing the parameters including the angle parameter in the first planning state 152 based on the change, the first second plan information 154 that inherits at least part of the instructions for the irradiation device 30(1) included in the plan information 152 of . Specifically, when generating the second plan information 154 from the first plan information 152, the plan generation unit 120 changes the rotation angle θ of the bed 12 around the Z-axis from 180 degrees to 0 degrees. The orientation of P with respect to the bed 12 is changed from HeadFirstSpine (the subject's head is located on the side of the first end 12A in the longitudinal direction) to FeetFirstSpine (the subject's head is located on the side of the second longitudinal end 12B). At the same time, the rotation angle φ of the bed 12 about the X-axis is converted to [360-φ], and the rotation angle Φ about the Y-axis is converted to [360-Φ]. Also, the position of the treatment table is changed so that the position of the affected part, that is, the isocenter position, is aligned with the axis through which the irradiation beam passes. In addition, the plan generation unit 120 generates second plan information 154 by taking over the settings included in the first plan information 152 regarding settings such as the irradiation angle of the treatment beam B, the collimator setting, and the irradiation pattern. As a result, even when the previous patient treats the bed 12 with the rotation angle θ=0 degrees and the next patient treats the bed 12 with the rotation angle θ=180 degrees, the plan information 154 is always generated. Treatment can be performed with the bed 12 at a rotation angle θ of 0 degrees, and the labor of performing calibration with the bed 12 at a rotation angle θ of 180 degrees can be omitted. and the processing load can be reduced. As a result, efficient operation can be made possible.

The display control unit 124 causes the display unit 115 to display information regarding positioning and generation of the second plan information 154 . FIG. 8 is a diagram showing an example of the screen IM1 displayed by the display unit 115 in the positioning stage. As shown in the figure, on the screen IM1, an area A1 in which a DRR image and a transmission image are displayed, an area A2 in which the body position and irradiation angle of the subject P during treatment are displayed, and an area A3 in which the deviation amount is displayed. area is set. Further, on the screen IM1, for example, if the first plan information 152 includes a plan to irradiate the subject P with the treatment beam B with the bed 12 at a rotation angle θ of 180 degrees, geometric transformation is performed. A button B1 is set for receiving an instruction to generate the second plan information 154 for treating the bed 12 with the rotation angle θ=0 degrees. When this button B1 is operated, the plan generation unit 120 generates the second plan information 154. FIG.

FIG. 9 is a flow chart showing an example of the flow of processing in the treatment planning stage executed by the plan generation unit 120 of the first embodiment. First, the plan generator 120 acquires the first plan information 152 (step S100). Next, the plan generation unit 120 determines whether the current state of the couch device 10 is different from the state assumed in the first plan information 152 (step S102). If it is determined that the current state of the couch device 10 is the same as the state assumed in the first plan information 152, the processing of this flowchart ends. In this case, the first plan information 152 is used as is.

When it is determined that the current state of the couch device 10 is different from the state assumed in the first plan information 152, the display control unit 124 displays a button B1 for instructing geometric transformation. It is displayed on the unit 115 (step S104). Next, the plan generation part 120 determines whether button B1 was operated (step S106). When the button B1 is operated, the plan generation unit 120 generates the second plan information 154 based on the first plan information 152 (step S108). Then, the plan generation unit 120 ends the processing of this flowchart.

Note that the display of the button B1 to accept the operation is omitted, and the plan generation unit 120 stores the first plan information 152 as a plan for irradiating the subject P with the treatment beam B also from the opposite direction. is included, the second plan information 154 may be automatically generated. In addition, it is written to generate a treatment plan with a rotation angle of θ=180 degrees into a treatment plan with a rotation angle of θ=0 degrees, but since the purpose is to perform treatment at the same Z-axis angle, a different angle is required. It's okay.

According to the medical device 100 of the first embodiment described above, the irradiation device having the irradiation port fixed in the horizontal direction is used to irradiate the subject P with the treatment beam B from relatively different directions. In some cases, efficient operation can be made possible. However, the irradiation port may be movable within 180 degrees or may be fixed in a direction other than the horizontal direction.

(Second embodiment)
A second embodiment will be described below. 1st Embodiment demonstrated the example which produces|generates the 2nd plan information 154 on the premise that the fixed irradiation apparatus 30 is exclusively used. In the second embodiment, an example in which the first plan information 152 generated for the stationary irradiation device 30 is applied to the rotating gantry irradiation device 70 will be described.

FIG. 10 is a diagram schematically showing an example of the usage environment of the medical device 100A according to the second embodiment. Hereinafter, "A" shall be attached to the end of the reference numerals for the configurations unique to the second embodiment. The medical device 100A controls the bed device 50 and the irradiation device 70 installed in the rotating gantry room. The configuration of the bed device 50 may be the same as that of the bed device 10 described in the first embodiment, and the description thereof will be omitted. The medical device 100A is connected to the medical device 100 that controls the bed device 10 and the irradiation device 30 installed in the fixed irradiation room via a LAN (Local Area Network) or the like.

For the sake of convenience, the medical device 100 that appears in the second embodiment is given the same reference numerals as in the first embodiment. good. Further, the irradiation device 30 is a fixed irradiation device. On the other hand, it is assumed that there is a type in which the treatment beam B is irradiated from 45 degrees obliquely upward or obliquely downward (denoted as irradiation angle Φg=45 degrees).

FIG. 11 is a diagram illustrating the relationship between the bed device 50, the irradiation device 70, and the medical device 100A. The bed device 50 includes a bed 52 and a bed driving device 54 . These may be similar to the bed 12 and bed drive 54 in the first embodiment. The irradiation device 70 includes a beamline 72, a rotating gantry 74, and one or more irradiation gates 76 provided on the rotating gantry. Beamline 72 carries the particles from which treatment beam B is derived. Beamline 72 rotates integrally with rotating gantry 74 . The rotating gantry 74 is rotationally driven by a driving mechanism (not shown). The irradiation gate 76 irradiates the treatment beam B toward the center of rotation of the rotating gantry 74, for example.

FIG. 12 is a diagram showing an example of a scene where the plan generation unit 120A generates the second plan information 154A. The left diagram of FIG. 11 shows the orientation of the subject P and the position of the bed 12 in the first planning information 152 generated for the medical device 100 by the treatment planning device (not shown), and the right diagram shows: The orientation of the subject P and the position of the couch 12 in the second planning information 154A generated by the medical device 100A are shown. In the first planning information 152A, it is planned that the head of the subject P is irradiated with the treatment beam B from the right side. It is planned to irradiate the treatment beam B from the right side.

In this case, the plan generation unit 120A changes the rotation angle θ about the Z-axis from 180 degrees to zero degrees, and changes the irradiation angle Φg from 90 degrees to 270 degrees, thereby eliminating the need to change other angle parameters. and Since the treatment rooms are different, no problem arises by changing the rotation angle θ about the Z-axis in the first place. For example, when the irradiation angle Φg in the first plan information 152 is 45 degrees, the plan generation unit 120A changes the irradiation angle Φg in the second plan information 154A to 315 degrees. That is, the plan generator 120A changes Φg to [360−Φg]. As a result, the intended irradiation direction can be realized, and the subject P can be irradiated with the treatment beam B at the same irradiation angle as the fixed irradiation device 30 . The plan generation unit 120A also converts the settings of the collimator and the irradiation pattern included in the first plan information 152 to generate the second plan information 154A. As a result, it is possible to omit the trouble of making detailed settings again, and to reduce the burden on the operator and the processing load. As a result, efficient operation can be made possible.

FIG. 13 is a flow chart showing an example of the flow of processing in the positioning stage executed by the plan generator 120A of the second embodiment. First, the plan generator 120A acquires the first plan information 152 (step S200). Next, the plan generator 120A determines whether the first plan information 152 is generated for a different treatment room (step S202). If it is not generated for a different treatment room, or if it is generated for a different treatment room but does not need to be converted, the processing of this flowchart ends. In this case, the first plan information 152A is used as is.

If it is generated for a different treatment room and requires conversion, plan generator 120A changes the angle parameter in first plan information 152 to generate second plan information 154A (step S204). . Note that, as in the first embodiment, when the data is generated for a different treatment room, a button B1 for instructing conversion is displayed on the display unit 115, and when the button B1 is operated, , to generate the second planning information 154A.

According to the medical device 100A of the second embodiment described above, the second planning information 152 for the rotating gantry type irradiation device 70 is based on the first plan information 152 generated for the stationary irradiation device 30. Efficient operation can be enabled when the plan information 154A is generated.

(Third Embodiment)
A third embodiment will be described below. In the second embodiment, an example in which the first plan information 152 generated for the stationary irradiation device 30 is applied to the rotating gantry type irradiation device 70 has been described. An example in which the first plan information 152A generated for the type irradiation device 70 is applied to the fixed type irradiation device 30 will be described.

FIG. 14 is a diagram schematically showing an example of the usage environment of the medical device 100B according to the third embodiment. Hereinafter, "B" shall be attached to the end of the reference numerals for the configurations unique to the third embodiment. The medical device 100B controls the bed device 10 and the irradiation device 30 installed in the fixed irradiation room. The configuration of the bed device 10 may be the same as that of the bed device 10 described in the first embodiment, and the description thereof will be omitted. The medical device 100B is connected to a medical device 100A that controls the bed device 50 and the irradiation device 70 installed in the rotating gantry room via a LAN or the like.

For the sake of convenience, the medical device 100A that appears in the third embodiment is given the same reference numerals as in the second embodiment. good. A treatment planning device (not shown) transmits first plan information 152A, which is plan information generated for the medical device 100A, to the medical device 100B. The plan generation unit 120B stores this in the storage unit 150B as first plan information 152B. Further, the irradiation device 30 is a fixed irradiation device. On the other hand, it is assumed that there is a type in which the treatment beam B is irradiated from 45 degrees obliquely upward or obliquely downward (denoted as irradiation angle Φg=45 degrees). As for the relationship between the bed device 10, the irradiation device 30, and the medical device 100B, reference is made to FIG. 1 and related explanations, and repeated explanations are omitted.

FIG. 15 is a diagram showing an example of a scene where the plan generation unit 120B generates the second plan information 154B. The left diagram of FIG. 15 shows the orientation of the subject P and the position of the bed 12 in the first plan information 152A generated by the medical device 100A, and the right diagram shows the second plan information generated by the medical device 100B. It shows the orientation of the subject P and the position of the bed 12 in the plan information 154B. In the first planning information 152A, it is planned that the head of the subject P is irradiated with the treatment beam B from the right side. It is planned to irradiate the treatment beam B from the right side. It is assumed that the irradiation angle Φg of the irradiation device 30 is 90 degrees.

In this case, the plan generator 120B changes the rotation angle θ about the Z-axis from zero degrees to 180 degrees, thereby eliminating the need to change other angle parameters. Since the treatment rooms are different, no problem arises by changing the rotation angle θ about the Z-axis in the first place. For example, when the irradiation angle Φg in the irradiation device 30 is 45 degrees and the irradiation angle Φg in the first plan information 152 is 315 degrees, similar conversion can be performed.

The plan generation unit 120B also converts the collimator settings and the irradiation pattern included in the first plan information 152B to generate the second plan information 154B. As a result, it is possible to omit the trouble of making detailed settings again, and to reduce the burden on the operator and the processing load. As a result, efficient operation can be made possible.

As for the flow of processing, the flowchart in FIG. 12 can be used by replacing the medical device 100 with the medical device 100A. Therefore, the description for the second time is omitted.

According to the medical device 100B of the third embodiment described above, when generating the second planning information 154B based on the first planning information 152A generated for the rotating gantry type irradiation device, efficiency can be used effectively.

In addition, in the second or third embodiment, instead of the "fixed irradiation device", an "irradiation device having a more restricted movable range than the rotating gantry type" may be applied. "Limited" means, for example, that the irradiation position can be changed within a range of several tens of degrees with the subject P as the center. Further, in the second or third embodiment, the second planning information (154A or 154B) is converted so that the rotation angle θ about the Z axis is zero and the orientation of the subject P with respect to the bed 12 is FeetFirstSpine. (not shown).

(Fourth embodiment)
A fourth embodiment will be described below. The fourth embodiment controls a fixed irradiation device 30 installed in a fixed irradiation room equipped with a CT device. Although the configuration diagram is omitted, "C" is attached to the end of the reference numeral for the configuration unique to the fourth embodiment.

FIG. 16 is a diagram showing an example of the usage environment of the medical device 100C according to the fourth embodiment. As shown in the figure, in this fixed irradiation room, a gantry 90 of a CT apparatus is installed at the end of the bed 12 that is extended. Note that, instead of the CT device, another diagnostic device such as an MR device may be installed. The CT apparatus has a predetermined direction in which the bed 12 can be introduced. For example, since it must be introduced from the first end 12A, it is necessary to rotate the patient 180 degrees around the Z-axis while the patient remains on the treatment table for CT imaging. For this reason, in the medical device 100C according to the fourth embodiment, for example, the first plan information 154C is generated on the premise that the treatment is performed without CT imaging by the CT device. second plan information 154C is generated if treatment is to be performed with In the illustrated example, as in the first embodiment, the rotation angle θ of the bed 12 about the Z axis is changed from 180 degrees to 0 degrees, and the orientation of the subject P with respect to the bed 12 is changed from HeadFirstSpine to FeetFirstSpine. , the rotation angle ψ of the bed 12 about the X axis is converted to [360−ψ], and the rotation angle Φ about the Y axis is transformed to [360−Φ]. As a result, the intended irradiation direction can be realized, and the rotation angle .theta. around the Z axis can be changed to suit CT imaging. As a result, CT imaging can be performed smoothly before and after treatment, and the burden on the operator and the processing load can be reduced. As a result, efficient operation can be made possible.

FIG. 17 is a diagram showing an example of the screen IM2 displayed by the display unit 115C in the treatment planning stage. As shown in the figure, on the screen IM2, an area A1 in which a DRR image and a transmission image are displayed, an area A2 in which the body position and irradiation angle of the subject P during treatment are displayed, an area A3 in which the deviation amount is displayed, An area such as an area A4 is set in which information indicating that CT imaging will be performed on that day is displayed. The content of the area A4 is determined by the display control unit 124A based on, for example, a notification from the CT apparatus, plan information, or information input by the user. Further, on the screen IM2, a button B2 is set for accepting an instruction to convert plan information so that CT imaging can be performed smoothly before and after treatment. When the button B2 is operated in a state in which information indicating that CT imaging is to be performed is displayed in the area A4, the plan generation unit 120C generates the second plan information 154C.

Drawing 18 is a flow chart which shows an example of a flow of processing performed by plan generation part 120C concerning a 4th embodiment. First, the plan generator 120C acquires the first plan information 152C (step S300). Next, the plan generating unit 120C determines whether or not there is a notification from the treatment planning device (not shown) that CT imaging will be performed on that day (step S302). When there is a notification that CT imaging will be performed on that day, the plan generation unit 120C determines whether or not it is necessary to reverse the orientation of the subject P in relation to the CT apparatus (step S304). If a negative determination is obtained in either step S302 or S304, the processing of this flowchart ends. In this case, the first plan information 152C is used as is.

When it is determined that the orientation of the subject P needs to be reversed, the display control unit 124 causes the display unit 115 to display a button B2 for instructing geometric transformation (step S306). Next, 120 C of plan production|generation parts determine whether button B2 was operated (step S308). When button B2 is operated, plan generation unit 120C generates second plan information 154C based on first plan information 152C (step S310). And 120 C of plan production|generation parts complete|finish the process of this flowchart.

Note that the display of the button B2 to accept the operation is omitted, and when it is determined that the direction of the subject P needs to be reversed, the plan generation unit 120C automatically generates the second plan information 154C. may be generated.

According to the medical device 100C of the fourth embodiment described above, in order to generate the second plan information based on whether CT imaging is performed, in a fixed irradiation room provided with a CT device. Efficient operation can be made possible.

(Fifth embodiment)
A fifth embodiment will be described below. The fifth embodiment controls a rotating gantry type irradiation device 30 installed in a viewpoint gantry room in which a CT apparatus is installed. Although a configuration diagram is omitted, "D" is added to the end of the reference numerals for configurations unique to the fifth embodiment.

FIG. 19 is a diagram showing an example of the usage environment of the medical device 100D according to the fifth embodiment. As shown in the figure, in this rotating gantry room, a gantry 90 of a CT apparatus is installed at the end of an extended bed 52 . The CT apparatus has a predetermined direction in which the bed 52 can be introduced. For example, since it must be introduced from the first end 52A, it is necessary to rotate the patient 180 degrees around the Z-axis while the patient remains on the treatment table for CT imaging. Therefore, in the medical device 100D according to the fifth embodiment, when CT imaging is performed by the CT apparatus, the second end 52B of the bed 52 faces the gantry 90 of the CT apparatus in the original first plan information 152D. If so, the rotation angle of the bed 52 about the Z-axis is changed by 180 degrees, and the orientation of the subject P with respect to the bed 12 is changed from HeadFirstSpine to FeetFirstSpine. As a result, the intended irradiation direction can be realized and the rotation angle θ around the Z-axis suitable for CT imaging can be maintained. In addition, the plan generation unit 120D according to the fifth embodiment takes over the settings included in the first plan information 152D with respect to settings such as the irradiation angle of the treatment beam B, the collimator setting, and the irradiation pattern, and generates the second plan. Generate information 154D. Alternatively, the rotation angle of the bed 52 about the Z-axis is changed by 180 degrees, and the irradiation angle Φg is changed to [360-Φg]. In addition, the collimator settings and irradiation pattern settings included in the first plan information 152 are also converted to generate the second plan information. (Not shown) As a result, it is possible to omit the trouble of making detailed settings again, and it is possible to reduce the burden on the operator and the processing load. As a result, efficient operation can be made possible.

(Sixth embodiment)
FIG. 20 is a diagram for explaining the sixth embodiment. Although a configuration diagram is omitted, "E" is added to the end of the reference numerals for configurations unique to the sixth embodiment. The medical device 100E according to the sixth embodiment generates the second plan information 154E in consideration of the movable range of the bed when performing non-coplanar irradiation. For example, the medical device 100E determines the relationship between the subject P and the bed so that a large angular range of the affected part of the subject P with respect to the treatment beam B can be secured based on the movable range of the bed.

According to the medical device 100E of the sixth embodiment described above, non-coplanar irradiation can be effectively performed.

The functions of the respective embodiments described above are not mutually exclusive, and can be appropriately combined to configure an apparatus, system, method, program, and the like.

According to at least one embodiment described above, the acquisition unit acquires the first plan information including the positional relationship between the medical device (30, 70) and the subject (P), and the a plan generation unit that generates second plan information that inherits a part of the instruction content for the medical equipment included in the first plan information by changing a part of the angle parameter according to a predetermined rule; By having a control unit that instructs the medical equipment based on the second plan information generated by the unit, more efficient operation can be made possible.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

10, 50 Bed devices 12, 52 Beds 14, 54 Bed drive devices 100, 100A, 100B, 100C, 100D, 100E, 100F Medical device 120 Plan generation unit 122 Image processing unit 124 Display control unit 126 Irradiation control unit 150 Storage unit 152 First plan information 154 Second plan information

Claims (16)

an acquisition unit that acquires first plan information based on a positional relationship between a medical device that operates with a subject placed on a bed, the bed, and the subject;
A part of the angle parameters including at least the posture angle of the bed included in the first plan information is used to change the positional relationship between the bed and the medical device and the positional relationship between the bed and the subject. a plan generation unit that generates second plan information that inherits a part of the instruction content for the medical device included in the first plan information by changing based on at least one of changes;
a control unit that instructs the medical device based on the second plan information generated by the plan generation unit;
A medical device comprising: an acquisition unit that acquires first plan information based on the positional relationship between the medical device and the subject that was assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. a plan generator that generates;
a control unit that instructs the medical device based on the second plan information generated by the plan generation unit;
When the treatment of the subject is performed in an environment different from the environment in which the treatment of the subject is performed according to the first plan information, the plan generation unit is configured to perform treatment of the subject in the different environment. generating the second planning information of
The different environment is an environment in which the movable range of an irradiation port for irradiating the subject with a therapeutic beam is different.
medical device. an acquisition unit that acquires first plan information based on the positional relationship between the medical device and the subject that was assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. a plan generator that generates;
a control unit that instructs the medical device based on the second plan information generated by the plan generation unit;
When the treatment of the subject is performed in an environment different from the environment in which the treatment of the subject is performed according to the first plan information, the plan generation unit is configured to perform treatment of the subject in the different environment. generating the second planning information of
The different environment is an environment in which the type of irradiation device that irradiates the subject with a therapeutic beam is different.
medical device. an acquisition unit that acquires first plan information based on the positional relationship between the medical device and the subject that was assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. a plan generator that generates;
a control unit that instructs the medical device based on the second plan information generated by the plan generation unit;
When the treatment of the subject is performed in an environment different from the environment in which the treatment of the subject is performed according to the first plan information, the plan generation unit is configured to perform treatment of the subject in the different environment. generating the second planning information of
The different environment is an environment in which the presence or absence of a diagnostic device attached to the medical device is different.
medical device. Further comprising a display control unit that causes a display unit to display information indicating that the second plan information has been generated when the second plan information is generated by the plan generation unit,
5. A medical device according to any one of claims 1-4 . When the subject is examined by a diagnostic device, the plan generation unit converts the already generated first plan information into a form suitable for introducing the subject to the diagnostic device.
6. A medical device according to any one of claims 1-5. further comprising a display control unit that causes a display unit to display information indicating that the diagnostic device is to examine the subject;
7. The medical device of claim 6. The plan generation unit automatically generates the second plan information based on a notification from the diagnostic device.
8. Medical device according to claim 6 or 7. a medical device
Acquiring first plan information based on a positional relationship between a medical device that operates with a subject placed on a bed, the bed, and the subject;
A part of the angle parameters including at least the posture angle of the bed included in the first plan information is used to change the positional relationship between the bed and the medical device and the positional relationship between the bed and the subject. changing based on at least one of a change to generate second plan information that inherits a part of the instruction content for the medical device included in the first plan information;
directing the medical device based on the generated second plan information;
Control method for medical equipment. a medical device
Acquiring first plan information including the positional relationship between the medical device and the subject assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. generate and
instructing the medical device based on the generated second plan information;
In the process of generating the second plan information, when the subject is treated in an environment different from the environment in which the subject is treated according to the first plan information, the treatment in the different environment is performed. performed for the treatment of a subject,
The different environment is an environment in which the movable range of an irradiation port for irradiating the subject with a therapeutic beam is different.
Control method for medical equipment. a medical device
Acquiring first plan information including the positional relationship between the medical device and the subject assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. generate and
instructing the medical device based on the generated second plan information;
In the process of generating the second plan information, when the subject is treated in an environment different from the environment in which the subject is treated according to the first plan information, the treatment in the different environment is performed. performed for the treatment of a subject,
The different environment is an environment in which the type of irradiation device that irradiates the subject with a therapeutic beam is different.
Control method for medical equipment. a medical device
Acquiring first plan information including the positional relationship between the medical device and the subject assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the posture angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. generate and
instructing the medical device based on the generated second plan information;
In the process of generating the second plan information, when the subject is treated in an environment different from the environment in which the subject is treated according to the first plan information, the treatment is performed in the different environment. performed for the treatment of a subject,
The different environment is an environment in which the presence or absence of a diagnostic device attached to the medical device is different.
Control method for medical equipment. for medical devices,
acquiring first plan information based on a positional relationship between a medical device that operates with a subject placed on a bed, the bed, and the subject;
A part of the angle parameters including at least the posture angle of the bed included in the first plan information is used to change the positional relationship between the bed and the medical device and the positional relationship between the bed and the subject. change based on at least one of the changes to generate second plan information that inherits a part of the instruction content for the medical device included in the first plan information;
instructing the medical device based on the generated second plan information;
program. for medical devices,
Acquire first plan information including the positional relationship between the medical device and the subject that was assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. generate,
instructing the medical device based on the generated second plan information ;
When the treatment of the subject is performed in an environment different from the environment in which the treatment of the subject is performed according to the first plan information, the process of generating the second plan information is performed in the different environment. causing the medical device to perform treatment of a subject;
The different environment is an environment in which the movable range of an irradiation port for irradiating the subject with a therapeutic beam is different.
program. for medical devices,
Acquire first plan information including the positional relationship between the medical device and the subject that was assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. generate,
instructing the medical device based on the generated second plan information ;
When the treatment of the subject is performed in an environment different from the environment in which the treatment of the subject is performed according to the first plan information, the process of generating the second plan information is performed in the different environment. causing the medical device to perform treatment of a subject;
The different environment is an environment in which the type of irradiation device that irradiates the subject with a therapeutic beam is different.
program. for medical devices,
Acquire first plan information including the positional relationship between the medical device and the subject that was assumed when the plan information was created;
Based on the difference between the positional relationship assumed when the planning information was created and the positional relationship between the medical device and the subject when treatment or diagnosis was performed , at least the subject included in the first planning information By changing part of the angle parameters including the attitude angle of the bed on which the specimen is placed , the second planning information that inherits part of the instruction content for the medical device included in the first planning information is generated. generate,
instructing the medical device based on the generated second plan information ;
When the treatment of the subject is performed in an environment different from the environment in which the treatment of the subject is performed according to the first plan information, the process of generating the second plan information is performed in the different environment. causing the medical device to perform treatment of a subject;
The different environment is an environment in which the presence or absence of a diagnostic device attached to the medical device is different.
program.

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