JP2000242719A - Radiotherapy scheduling system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make performable the evaluation of all of weeks equally for every irradiation without including a period before the execution day of first treatment in an evaluation object by equally performing the evaluation for every week regardless of the treatment start date of every irradiation. SOLUTION: A treatment scheduling means 5 receives data respectively from a patient information storage means 1, a treatment schedule storage means 2, a radiation device information storage means 3 and a treatment room information storage means 4 and plans a treatment schedule showing the date and time of treatment for a patient, a radiation device to be used for every treatment and a treatment room. The treatment scheduling means 5 defines the treatment start date of every irradiation as the start of a week for that irradiation and defines seven days from the treatment start date as one week for that irradiation. Besides, the treatment scheduling means 5 changes the treatment schedule repeatedly over and over so as to improve the evaluation value and performs the evaluation every time. Therefore, one week for each irradiation is defined again every time the evaluation is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation treatment scheduling system for automatically drafting a treatment schedule for each patient for efficiently operating a radiation treatment device.

[0002]

2. Description of the Related Art Radiation therapy, which is one of the cancer treatment methods, includes photon beam (X-ray, γ-ray, etc.), electron beam, particle beam (proton, helium, carbon, neon, pion beam, neutron beam, etc.). Is irradiated to the affected part to perform treatment. For example, in radiation therapy using a particle beam (hereinafter, referred to as a particle beam therapy), a so-called “treatment plan” indicating specific treatment content is created for each treatment site of each patient. Each treatment plan is configured by a unit called “irradiation” for each irradiation direction of the particle beam (for example, horizontal, vertical, 45 ° oblique, etc.). In each "irradiation", the type of particle beam used (hereinafter, referred to as particle type), the intensity of the particle beam (hereinafter, referred to as energy), the scheduled treatment start date, the treatment period, the number of treatments, and one treatment The irradiation dose, one treatment time, the port to be used, and the like are specified. The port is a particle beam irradiation port installed in each treatment room, and corresponds to the above-described irradiation direction.

[0003] An apparatus for performing particle beam therapy (hereinafter, referred to as a particle beam therapy apparatus) is mainly composed of a radiation irradiation apparatus (hereinafter, referred to as an accelerator) for generating a particle beam and a therapy for irradiating an affected part with the particle beam. The room consists of two facilities. The particle beam therapy system is large and expensive, and efficient operation is desired.

[0004] The accelerator is one type of particle at a time and
Particle beam of one kind of energy can be irradiated only to one beam course (the beam course is the path of the particle beam from one accelerator to one port in one treatment room). When the energy and the beam course are switched, a switching time is generated. In order to operate the accelerator efficiently, it is necessary to minimize the number of times of switching per day.

[0005] The treatment room requires a preparation time before treatment, a cleanup time after treatment, and a patient replacement time. When the same treatment room is used continuously, treatment cannot be performed for the combined time. In order to use the treatment room efficiently, alternate treatment rooms are used, and while treatment is performed in one treatment room, preparations are made in the next treatment room to save time when treatment cannot be performed. It is necessary to minimize it.

In operation of the particle beam therapy system, the treatment date and time of each patient and the accelerator and treatment room used in each treatment are set as a treatment schedule so that the accelerator and the treatment room can be operated efficiently according to the treatment plan of each patient. Have to decide. Currently, this treatment schedule is manually prepared, but it is necessary to consider the efficient operation of the accelerator and treatment room in accordance with the treatment plan, and it is complicated. Because it is large,
Since there are frequent changes in accordance with changes in the patient's condition, the burden on the planner is high, and automatic planning of the treatment schedule is desired.

An automatic treatment schedule planning system for particle beam therapy has been proposed in the literatures [1] to [5]. Reference [1] Sato et al., "Particle Beam Therapy Scheduling System-System Overview-", Proc. Of the 56th Annual Conference of IPSJ, 4W-01 (1998) Reference [2] Aoyama et al. System-Treatment Day Schedule- ", Proc. Of the 56th Annual Conference of the IPSJ, 4W-02 (1998) [3] Asami et al. Proceedings of the 56th National Convention, 4W-03 (1998) Reference [4] Aoyama et al., "Application of GA to Particle Beam Therapy System Schedule-Treatment Day Schedule-", IPSJ Research Report, 98-MPS-21, pp. 43-48 (1998) Reference [5] Asami et al., "Application of GA to Particle Beam Therapy Apparatus Schedule-Treatment Order Schedule-", Information Processing Society of Japan Research Report, 98-MPS-21, pp. 49-54 (1998)

[0008]

The treatment plan is, for example,
When the number of treatments per week is specified or the treatment period is specified on a weekly basis, it is created on a weekly basis. Therefore,
It is necessary to evaluate the schedule that is drafted on a weekly basis. In the method proposed in the above literature, all treatment plans are evaluated in the same period, for example, from Monday to Sunday. FIG. 5 shows an example. FIG. 5 shows the treatment date of two irradiations of patient 1 and one irradiation of patient 2. The circles and double circles represent the dates of treatment, and in particular, the double circles represent the date of the first treatment. When all irradiations are evaluated weekly from Monday to Sunday, the first irradiation of patient 1 can be performed in the same manner as the first irradiation of Monday, but treatment can be performed in the same manner as that of patient 1. Irradiation and the irradiation of patient 2 include before the treatment start date in the evaluation target.
There is a problem that the evaluation value is worse in the week than in other weeks.

[0009] Regarding treatment of a single patient multiple times a day, there are two cases: simple multiport irradiation (performing treatment with a different port per day) and a case called hyperfractionation. is there. Of these, the treatment of hyperfractionation imposes a heavy burden on the patient. Therefore, it is desirable to reduce the burden on the patient by performing the treatment after a certain period of time. However, since the hyperfractionation is not taken into account in the method proposed in the above document, there is a problem that a schedule that increases the burden on the patient is drafted.

Further, DICOM-RT (Digital Imaging) which is a database format used in radiotherapy
and Communications in Medicine Supplement 11 Radio
The concept of divided groups is introduced in a treatment plan created based on the therapy objects standard. Figure 6 shows DICO
Among the items included in the treatment plan based on the M-RT standard, the items necessary for drafting the treatment schedule are shown.

In each of the divided groups, a divided pattern indicating a weekly day of treatment can be designated. The division pattern is specified by a bit string in which the day of the week when the treatment is performed is set to 1 and the day of the week when the treatment is not performed is set to 0. For example, when the treatment to be performed once a day is performed, the execution period of the division pattern is set to one week, and the day of the week when the treatment is performed is set to 1010, the division pattern is 1010
It will be 100. In order to formulate a treatment schedule in accordance with a treatment plan, it is necessary to determine a treatment execution date so as to match the division pattern. In some cases, the division pattern is not specified. In this case, it is necessary to equalize the number of weekly treatments and the treatment intervals of each irradiation. However, the method proposed in the above document does not correspond to the concept of a division group, and there is a problem that a schedule cannot be made in consideration of a division pattern.

In the DICOM-RT standard, a patient setup number indicating the posture of a patient, the direction of a treatment table, and the like is designated for each irradiation. In order to shorten the time required for positioning before the treatment and to carry out the treatment efficiently, it is desirable to continuously perform irradiation of the same patient setup number. However, the method proposed in the above document has a problem that a schedule in consideration of a patient setup number cannot be made.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a radiation treatment scheduling system which realizes the following items. (a) To perform more accurate weekly evaluation of each irradiation; (b) To formulate a schedule in consideration of patient's burden reduction; (c) When a division pattern is specified, it matches the division pattern (D) If the division pattern is not specified, equalize the number of weekly treatments and the interval between treatments, and follow the treatment plan. (E) To formulate an efficient operation schedule in consideration of the patient setup number.

[0014]

SUMMARY OF THE INVENTION In view of the above-mentioned object, the present invention provides (a) patient information storage means for storing information on a patient, and (b) a treatment plan indicating treatment contents required for each patient. (C) an irradiation device information storage unit that stores information about a radiation irradiation device, (d) a treatment room information storage unit that stores information about a treatment room, and (e)
A treatment schedule evaluation means for evaluating a treatment schedule every seven days from the treatment start date of each irradiation, and determining a treatment date and time of each patient according to the treatment plan, a radiation irradiation apparatus and a treatment room to be used in each treatment; (f) planning result storage means for storing the planning result; and (g) planning result display means for displaying the planning result, and performs the same evaluation every week regardless of the treatment start date of each irradiation. There is provided a radiotherapy scheduling system.

The present invention also provides (a) patient information storage means for storing information about a patient, and (b) treatment plan storage means for storing a treatment plan indicating the treatment required for each patient.
(c) irradiation device information storage means for storing information about the radiation irradiation device, (d) treatment room information storage means for storing information about the treatment room, (e) treatment date and time of each patient according to the treatment plan, Determine the radiation irradiation device and treatment room to be used in each treatment, and if treatment of a type such as hyperfractionation is performed multiple times on one patient on the same day, the intervals between these treatments , A treatment schedule drafting means for keeping a predetermined time or more, (f) a planning result storage means for storing the planning result, and (g) a planning result display means for displaying the planning result, to reduce the burden on the patient. Is automatically planned.

According to the present invention, (a) patient information storage means for storing information regarding a patient, and (b) a treatment plan which is prepared based on the DICOM-RT standard and indicates treatment contents required for each patient are stored. (C) an irradiation device information storage device for storing information about a radiation irradiation device, (d) a treatment room information storage device for storing information about a treatment room, and (e) a treatment date for each patient. At the time of determination, a treatment schedule planning means for determining a treatment implementation date such that the division pattern matches the division pattern with respect to the designated treatment plan; (f) a planning result storage means for storing the planning result; )
And a planning result display means for displaying a planning result.
When a division pattern indicating a treatment execution day of one week is specified in a treatment plan created based on the COM-RT standard, by matching the treatment execution date with the division pattern,
A radiation treatment scheduling system is characterized in that a treatment schedule according to a treatment plan is automatically created.

Further, according to the present invention, the treatment schedule planning means minimizes the difference between the number of times of treatment performed per week and the specified number of times for a treatment plan for which a division pattern is not specified, and The implementation date is set at regular intervals and the DIC
In a treatment plan created based on the OM-RT standard,
A radiation treatment scheduling system is characterized in that a treatment schedule for performing treatment evenly every week is automatically drafted even for a treatment plan for which a division pattern is not specified.

According to the present invention, (a) patient information storage means for storing information on a patient, and (b) a treatment plan, which is created based on the DICOM-RT standard and indicates treatment contents required for each patient, are stored. (C) an irradiation device information storage device for storing information about a radiation irradiation device, (d) a treatment room information storage device for storing information about a treatment room, and (e) the same patient on the same day. A treatment schedule planning means for determining the treatment execution time of each treatment, the radiation irradiation apparatus to be used, and the treatment room so that the treatments of the setup number are performed a plurality of times so that the treatments are continuously performed in the same treatment room. (F) planning result storage means for storing the planning result, and (g) planning result display means for displaying the planning result;
Radiation treatment scheduling characterized by reducing the time required for patient and treatment table positioning by continuously performing treatments with the same patient setup number, and automatically creating a treatment schedule that allows efficient operation of equipment In the system.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a radiotherapy scheduling system according to each embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram of a radiotherapy scheduling system according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a patient information storage unit for storing information about a patient, such as a patient's name, identification number, treatable date, and treatable time zone.

2 is, for example, in the case of particle beam therapy,
Shows the required treatment for each treatment site of the patient, such as particle type and energy used, scheduled treatment start date, treatment period, number of treatment treatments, irradiation dose per treatment, irradiation time per treatment, port used, etc. This is a treatment plan storage means for storing a treatment plan.

3 is, for example, in the case of particle beam therapy,
Particle types and energy that the accelerator can irradiate, working days,
This is an irradiation device information storage unit that stores information on the radiation irradiation device, such as a particle type switching time, an energy switching time, and a beam course switching time.

4 is a treatment room installation port (a treatment room may be provided with a plurality of ports having different irradiation directions).
This is a treatment room information storage unit that stores information about the treatment room, such as a usable date, a preparation time required before treatment, a cleanup time after treatment, and a patient replacement time.

Reference numeral 5 denotes data received from the patient information storage means 1, the treatment plan storage means 2, the irradiation apparatus information storage means 3, and the treatment room information storage means 4, respectively, the date and time of treatment of the patient, and the radiation irradiation apparatus used in each treatment. And a treatment schedule drafting means for drafting a treatment schedule indicating a treatment room.

If the evaluation value of the evaluation item to be considered in formulating the treatment schedule is defined such that the evaluation item is most satisfied when taking the minimum value (for example, 0), the treatment schedule planning means 5 can For example, a treatment schedule is planned using an optimization algorithm such as a genetic algorithm so that the evaluation value of each evaluation item approaches the minimum value. If the evaluation value is defined so as to satisfy the evaluation item most when the maximum value is taken, the treatment schedule planning means 5 drafts the treatment schedule so that the evaluation value of each evaluation item approaches the maximum value.

Reference numeral 6 denotes a planning result display means for displaying the planned treatment schedule and enabling interactive modification of the treatment schedule.

7 stores a newly drafted result,
This is a planning result storage unit for transferring the stored previous planning result to the treatment schedule planning unit 5 and the planning result display unit 6. With the radiation treatment scheduling system configured as described above, a treatment schedule that enables efficient operation of the radiation treatment device is prepared.

The patient information storage means 1, treatment plan storage means 2, irradiation device information storage means 3, treatment room information storage means 4, and planning result storage means 7 are constituted by storage devices.
The treatment schedule planning means 5 is constituted by a computer which operates according to a program, and the planning result display means 6 is constituted by a display or the like.

FIG. 2 shows an example in which the definition of one week for each irradiation is changed. Numeral 8 is an example of the treatment date of the patient 1 and the patient 2. Patient 1 has one treatment plan, which includes two irradiations. Patient 2 has one treatment plan,
The treatment plan includes one irradiation. 8a is one of patient 1
The first irradiation, 8b is the second irradiation of the patient 1, and 8c is the irradiation of the patient 2. The circles and double circles in the figure represent the dates of treatment, and in particular, the double circles represent the first treatment of each irradiation.

The treatment schedule planning means 5 defines the treatment start date of each irradiation as the start of the week in the irradiation, and defines seven days from the treatment start date as one week in the irradiation. In FIG. 2, 8d is the definition of one week of irradiation 8a, 8
e represents the definition of one week of irradiation 8b, and 8f represents the definition of one week of irradiation 8c. Irradiation 8a starts on Monday since treatment starts on Monday, irradiation 8b starts on Friday from Thursday because irradiation starts on Friday, and irradiation 8c starts on Thursday to Wednesday since treatment starts on Thursday.
Each is defined as one week. When the treatment schedule estimating means 5 evaluates the treatment schedule for each week of each irradiation, it performs the evaluation for each week defined for each irradiation.

The treatment schedule planning means 5 repeatedly changes the treatment schedule so as to improve the evaluation value, and evaluates each time. Thus, one week of each irradiation is redefined each time the evaluation is performed. As described above, there is an effect that the evaluation for all weeks can be equally performed for all irradiations without including the date before the first treatment is included in the evaluation target.

Embodiment 2 FIG. FIG. 3 is a diagram for explaining a radiation treatment scheduling system according to another embodiment of the present invention. The configuration of the system is basically
Is the same as that shown in FIG.

FIG. 3 shows an example in which the same patient is treated a plurality of times a day. Reference numeral 9 denotes the treatment to be performed in one day and the time. Squares with alphanumeric characters represent treatments, numbers represent patients, and the letter h represents hyperfractionation treatment. For example, the leftmost square is the treatment for patient 1, and
It indicates that it is a treatment for hyperfractionation.

In the processing for determining the treatment execution time, the treatment schedule planning means 5 sets the execution intervals of the treatments in advance when one patient undergoes hyperfractionation treatment a plurality of times on the same day. The start time of each treatment, the radiation irradiation device to be used, and the treatment room are determined so as to be equal to or longer than the designated time interval.

The number of times of the piper fractionation treatment performed by the patient i in one day is G _i , and the difference between the end time of the j-th piper fractionation treatment of the patient i and the start time of the j + 1-th hyperfractionation treatment. X _ij (if the number of hyperfractionation treatments performed per day is 1 or less, the value of X _ij is 0), the time interval specified in advance is A, and the number of patients is P Then, the evaluation value V of the treatment execution interval when the same patient is treated a plurality of times a day is defined by the formulas (1) to (3).

[0036]

(Equation 1)

In the case of FIG. 3, hyperfractionation treatment is performed twice a day for each of the patients 1 and 3. 9a is the first hyperfractionation treatment of patient 1, 9b is the second hyperfractionation treatment of patient 1, 9c is the interval between treatments 9a and 9b, and 9d is the first hyperfractionation treatment of patient 3. Nation treatment, 9e is the second hyperfractionation treatment of patient 3, and 9c is the interval between treatment 9d and treatment 9e. In this case, the value of 9c is X ₁₁ , the value of 9f is X ₃₁ , and the value of the evaluation value V is (ξ ₁₁ + ξ ₃₁ ) / 2.

The treatment schedule planning means 5 repeatedly determines the treatment time of each treatment and the radiation irradiation apparatus and treatment room to be used so that the evaluation value V approaches 0 as much as possible. As described above, when hyperfractionation treatment is performed for one patient a plurality of times a day, a schedule that can reduce the burden on the patient is automatically set at intervals of a certain time or more. It has the effect of being able to plan.

Embodiment 3 FIG. 4 is a diagram for explaining a radiotherapy scheduling system according to another embodiment of the present invention. The configuration of the system is basically
Is the same as that shown in FIG.

FIG. 4 shows a treatment execution date according to the division pattern of the division group 1 and a planned treatment execution date. The upper row shows the treatment implementation date according to the division pattern, and the lower row shows the planned treatment implementation date. According to the DICOM-RT standard, all the irradiations included in the same divided group are performed on the same day, so the treatment schedule planning means 5 determines the treatment execution date for each divided group. The treatment schedule planning means 5 determines a treatment date for a treatment group in which a division pattern is designated so that the treatment execution date and the division pattern match as much as possible. The mismatch rate between the division pattern of the division group i and the planned treatment date is represented by q _i (FIG. 4).
In the case of, there are 6 days in the treatment period (21 days) that do not match the division pattern, so the mismatch ratio is 6/21 =
0.286), and N is the total number of divided groups.
Expression (4) is defined as the evaluation value Q of the mismatch rate between the divided pattern and the planned treatment date in the entire schedule.

[0041]

(Equation 2)

The treatment schedule planning means 5 repeatedly determines the treatment execution date of each divided group so that the value of Q given by the equation (4) approaches 0 as much as possible. As described above, the DIC is provided with a function of drafting a treatment schedule that matches a division pattern specified for each division group.
There is an effect that a treatment schedule according to a treatment plan created based on the OM-RT standard can be made.

In some cases, a division pattern is not specified in a treatment plan created based on the DICOM-RT standard. In this case, the treatment schedule planning means 5 determines the treatment execution date of each divided group so that the number of times of treatment performed per week approaches the number specified for each divided group, and the treatment date intervals are even.

The number of times of treatment performed for the j-th week of the divided group i is Y _ij , the treatment period (number of weeks) of the divided group i is W _i , the number of treatments for one week designated in advance by the divided group i is Y _i , Set the number of divided groups to N
Then, the evaluation value K of the number of treatments per week in the entire schedule is defined by Expression (5).

[0045]

(Equation 3)

When the variance of the treatment execution day interval of the divided group _i is b _i and the number of divided groups is N, the evaluation value R of the treatment day interval of each irradiation in the entire schedule is defined by the equation (6). .

[0047]

(Equation 4)

The treatment schedule planning means 5 repeatedly determines the treatment date of each divided group so that the evaluation values given by the equations (5) and (6) are as close to 0 as possible. As described above, there is an effect that a schedule for performing treatment evenly every week can be formulated even for a divided group for which a divided pattern is not specified.

Embodiment 4 A radiotherapy scheduling system according to another embodiment of the present invention will be described. The configuration of the system is basically the same as that shown in FIG. In the treatment plan created based on the DICOM-RT standard, a patient setup number for designating the position of the treatment table, the posture of the patient, and the like is specified for each irradiation. When a plurality of treatments of the same patient setup number are performed on the same day, the treatment schedule planning means 5 determines the treatment execution time of the day and the radiation irradiation device to be used so that the treatments are performed continuously as much as possible. And determine the treatment room.

Assume that irradiation of M kinds of patient setup numbers is performed D _i (i = 1, 2,..., M) times a day, and t _i1 , t _i2,. ., T _iDi ,
The evaluation value U of performing the treatment multiple times a day with the same patient setup number in the entire schedule is calculated by the equation (7),
Defined in (8).

[0051]

(Equation 5)

The treatment schedule planning means 5 calculates the evaluation value U
By repeatedly determining the execution time of each treatment, the radiation irradiation apparatus to be used, and the treatment room so that the treatment time approaches 0 as much as possible, a treatment schedule in which treatments of the same patient setup number are continuously performed is drafted. By the above, the time required for positioning of the treatment table and patient, etc. is reduced,
There is an effect that a treatment schedule for efficiently operating the treatment device can be formulated.

Although the description has been given mainly of the case of particle beam therapy as an example, the present invention has the same effect as that of the case of particle beam radiation in planning a treatment schedule in other radiotherapy such as X-ray. Is clear.

[0054]

As described above, according to the present invention, (a) patient information storage means for storing information about a patient, and (b) treatment plan storage for storing a treatment plan indicating the treatment required for each patient. Means, (c) irradiation device information storage means for storing information about the radiation irradiation device, (d) treatment room information storage means for storing information about the treatment room, and (e) seven days from the treatment start date of each irradiation. The treatment schedule is evaluated in units, the treatment date and time of each patient in accordance with the treatment plan, the radiation irradiation apparatus and treatment room to be used in each treatment are determined, and (f) a plan for storing the plan result The radiation treatment scheduling system includes a result storage unit and (g) a planning result display unit for displaying a planning result, and performs a weekly evaluation in the same manner regardless of the treatment start date of each irradiation. Irradiation 1 Evaluation of each between can be performed more accurately.

Further, the present invention relates to (a) a patient information storing means for storing information relating to a patient, (b) a treatment plan storing means for storing a treatment plan indicating treatment contents required for each patient, and (c) a radiation irradiation apparatus. Irradiation device information storage means for storing information; (d) treatment room information storage means for storing information about treatment rooms; (e) treatment date and time of each patient in accordance with a treatment plan; and radiation irradiation used in each treatment. Determine the equipment and treatment room,
And a treatment schedule planning means for, when a single type of treatment such as hyperfractionation is performed a plurality of times on one patient on the same day, providing an interval of more than a predetermined time between the treatments; A radiation treatment scheduling system for automatically drafting a treatment schedule for reducing the burden on the patient, comprising a planning result storage means for storing the results and (g) a planning result display means for displaying the planning result; It is possible to formulate a schedule that takes into consideration the reduction of the burden on the patient for treatments such as nations.

Further, (a) a patient information storage means for storing information about a patient, and (b) a treatment plan for storing a treatment plan which is created based on the DICOM-RT standard and indicates treatment contents required for each patient. Storage means, (c) irradiation device information storage means for storing information about the radiation irradiation device, (d) treatment room information storage means for storing information about the treatment room,
(e) When determining a treatment date for each patient, treatment schedule planning means for determining a treatment implementation date so that the division pattern matches the division pattern with respect to the designated treatment plan, and (f) storing the planning result. DICOM-R comprising: a planning result storage means; and (g) a planning result display means for displaying a planning result.
A radiation treatment scheduling system for automatically drafting a treatment schedule so that a treatment execution date matches a division pattern when a division pattern indicating a treatment execution date of one week is specified in a treatment plan created based on the T standard; Therefore, when a division pattern is specified, the treatment execution date can be determined so as to match the division pattern, and a schedule according to the treatment plan can be made.

In addition, the treatment schedule planning means includes:
For treatment plans for which no segmentation pattern is specified, 1
DICOM-RT minimizes the difference between the number of weekly treatments and the designated number of treatments, and makes treatment treatment dates evenly spaced.
In a treatment plan created based on the standard, a radiation treatment scheduling system that automatically drafts a treatment schedule to perform treatment evenly every week even for a treatment plan that does not specify a division pattern, so if a division pattern is not specified In addition, it is possible to formulate a schedule in accordance with a treatment plan, in which the number of treatments per week and the interval between treatments are equalized.

Further, (a) a patient information storage means for storing information about a patient, and (b) a treatment plan for storing a treatment plan which is prepared based on the DICOM-RT standard and indicates treatment contents required for each patient. Storage means, (c) irradiation device information storage means for storing information about the radiation irradiation device, (d) treatment room information storage means for storing information about the treatment room,
(e) When performing the same treatment multiple times with the same patient setup number on the same day, the treatment execution time of each treatment, the radiation irradiation device to be used, and the treatment so that the treatments are successively performed in the same treatment room. Treatment schedule planning means for determining a room; (f) planning result storage means for storing the planning result;
(g) planning result display means for displaying the planning result,
Since the treatment with the same patient setup number is performed consecutively, the time required for positioning the patient and treatment table is reduced, and the radiation treatment scheduling system automatically creates a treatment schedule that allows efficient operation of the equipment. An efficient operation schedule without any problems can be planned.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a radiotherapy scheduling system according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining radiation therapy scheduling according to the present invention.

FIG. 3 is a diagram for explaining radiation therapy scheduling according to another embodiment of the present invention.

FIG. 4 is a diagram for explaining radiation therapy scheduling according to another embodiment of the present invention.

FIG. 5 is a diagram showing an example of a treatment plan made on a weekly basis from Monday to Sunday.

FIG. 6 is a diagram showing items necessary for drafting a treatment schedule among items included in a treatment plan based on the DICOM-RT standard.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Patient information storage means, 2 Treatment plan storage means, 3 Irradiation apparatus information storage means, 4 Treatment room information storage means, 5 Treatment schedule planning means, 6 Planning result display means, 7
Planning result storage means.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masaharu Tsuchiya 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Corporation (72) Inventor Takenobu Sakamoto 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation F-term (reference) 5B049 BB41 CC32 CC34 FF01

Claims (5)

[Claims] The present invention relates to (a) patient information storage means for storing information about a patient, (b) treatment plan storage means for storing a treatment plan indicating the treatment required for each patient, and (c) a radiation irradiation apparatus. Irradiation device information storage means for storing information;
(d) treatment room information storage means for storing information regarding the treatment room, and (e) treatment schedule evaluation for each patient in accordance with the treatment plan, by evaluating the treatment schedule every 7 days from the treatment start date of each irradiation, A treatment schedule planning means for determining a radiation irradiation apparatus and a treatment room to be used in each treatment; (f) a planning result storage means for storing the planning result; and (g) a planning result display means for displaying the planning result. A radiation treatment scheduling system wherein evaluation is performed in the same manner every week regardless of the treatment start date of each irradiation. 2. (a) Patient information storage means for storing information about a patient, (b) treatment plan storage means for storing a treatment plan indicating treatment contents required for each patient, and (c) a radiation irradiation apparatus. Irradiation device information storage means for storing information;
(d) a treatment room information storage means for storing information about the treatment room, (e) a treatment date and time of each patient in accordance with a treatment plan, a radiation irradiation device and a treatment room to be used in each treatment, and the same. When treatment of a type such as hyperfractionation is performed a plurality of times on one patient per day, treatment schedule planning means for providing an interval of more than a predetermined time between the treatments, and (f) storing the planning result And (g) a planning result display means for displaying the planning result, wherein a radiation treatment scheduling system for automatically drafting a treatment schedule to reduce the burden on the patient. 3. A patient information storage means for storing information on a patient, and (b) a treatment plan for storing a treatment plan, which is created based on the DICOM-RT standard, and indicates treatment contents required for each patient. Storage means, (c) irradiation device information storage means for storing information about the radiation irradiation device, (d) treatment room information storage means for storing information about the treatment room, and (e) when the treatment date of each patient is determined. A treatment schedule planning means for determining a treatment execution date so that the division pattern matches the division pattern for the designated treatment plan; (f) a planning result storage means for storing the planning result; and (g) a planning result. And a planning result display unit for displaying a treatment result. When a division pattern indicating a treatment execution date of one week is designated in a treatment plan created based on the DICOM-RT standard, the treatment execution date is matched with the division pattern. It is, radiation therapy scheduling system, characterized in that it automatically develop a treatment schedule in line with the treatment plan. 4. The treatment schedule planning means minimizes the difference between the number of times of treatment performed per week and the designated number of times for a treatment plan for which a division pattern is not designated,
In addition, treatment execution dates are set at regular intervals, and in a treatment plan created based on the DICOM-RT standard, a treatment schedule for uniformly performing treatment even every week even for a treatment plan for which a division pattern is not specified is automatically drafted. The radiation treatment scheduling system according to claim 3, wherein 5. A treatment plan for storing (a) patient information storage means for storing information relating to a patient, and (b) a treatment plan which is prepared based on the DICOM-RT standard and indicates a treatment plan required for each patient. Storage means, (c) irradiation device information storage means for storing information about the radiation irradiation device, (d) treatment room information storage means for storing information about the treatment room, and (e) the same patient setup number on the same day. When performing a plurality of treatments, a treatment schedule planning means for determining a treatment execution time of each treatment, a radiation irradiation apparatus to be used, and a treatment room so that the treatments are continuously performed in the same treatment room, f) planning result storage means for storing the planning result; (g)
And a planning result display means for displaying the planning results.By continuously performing the treatment with the same patient setup number, the time required for positioning the patient and the treatment table can be reduced, and a treatment schedule that can operate the equipment efficiently can be set. A radiotherapy scheduling system characterized by automatic planning.