JP2019130392A - Radiation application apparatus and radiation dose management system - Google Patents

Abstract

To provide a radiation application apparatus which allows the operator to easily monitor the single cumulative dose distribution and the total cumulative dose distribution in a patient during application of a radiation application manipulation to the patient.SOLUTION: A radiation application apparatus 10 comprises: past cumulative dose distribution acquisition means 113 for acquiring the past cumulative dose distributions associated with a required patient identifying information from a cumulative dose distribution DB 17 in which a plurality of cumulative dose distributions can be registered; sequential cumulative dose distribution calculation means 116 for sequentially calculating a cumulative dose distribution as a first cumulative dose distribution during execution of a radiation application manipulation for the patient associated with the required patient identifying information, sequentially calculating a second cumulative dose distribution by adding the first cumulative dose distribution to the past cumulative dose distribution, and sequentially displaying the first cumulative dose distribution and the second cumulative dose distribution on a display unit 14 during execution of the radiation application manipulation; and cumulative dose distribution registration means 117 for registering a single cumulative dose distribution in the cumulative dose distribution DB 17.SELECTED DRAWING: Figure 5

Description

  The present embodiment as one aspect of the present invention relates to a radiation irradiation apparatus and a dose management system capable of representing an integrated dose distribution.

  Currently, an increase in radiation exposure due to radiographic examinations is seen as a problem mainly in the United States and Europe, and reduction of patient exposure has become an issue for customers. The total exposure dose for Americans has increased sixfold compared to 1980. The American Society of Medical Physics warns physicians not to perform unnecessary radiographic imaging. In addition, education is being promoted for laboratory technicians in the United States to conduct examinations at lower doses.

  In recent years, a system (DTS) has been developed that visualizes an integrated dose (exposure dose) due to radiation irradiation to a patient who is performing a radiation irradiation technique (examination (imaging), treatment, surgery, etc. with radiation irradiation). This system sequentially (in real time) displays the accumulated dose from the start of the radiation irradiation procedure to the present.

JP 2014-113478 A

  In the conventional DTS, when a further radiation irradiation procedure is performed on a patient who has performed a radiation irradiation procedure in the past, an integrated dose (single integrated dose) sequentially calculated in the radiation irradiation procedure being performed is Even when the threshold per radiation exposure procedure is not exceeded, the cumulative dose (total cumulative dose) obtained by sequentially integrating the single cumulative dose to the cumulative dose in the past radiation exposure procedure may exceed the threshold. is there.

  If the total accumulated dose exceeds the threshold, erythema or the like may occur later on the patient's skin as a radiation skin disorder.

  In addition, conventionally, in order to monitor the accumulated dose during the execution of the radiation irradiation procedure, it is not possible to display only a single accumulated dose or only the total accumulated dose (the accumulated dose cannot be monitored) itself. There was no technology on how to effectively display both single and total cumulative doses.

  In order to solve the above-described problem, the radiation irradiation apparatus according to the present embodiment acquires past accumulated dose distributions corresponding to required patient identification information from a storage unit capable of registering a plurality of accumulated dose distributions. The cumulative dose distribution is sequentially calculated as the first cumulative dose distribution during execution of the radiation distribution technique for the patient corresponding to the required patient identification information and the first cumulative dose distribution in the past cumulative dose distribution. Second cumulative dose distribution is calculated by sequentially calculating the second cumulative dose distribution by integrating the dose distribution, and sequentially displaying the first integrated dose distribution and the second integrated dose distribution on a display unit during execution of the radiation irradiation procedure. Means, and cumulative dose distribution registration means for registering the first cumulative dose distribution in the storage unit.

  In order to solve the above-described problem, the dose management system according to the present embodiment supports required patient identification information from a storage unit capable of registering a plurality of integrated dose distributions by a plurality of radiation irradiation apparatuses performing radiation irradiation techniques. A past integrated dose distribution acquisition means for acquiring a past integrated dose distribution, and sequentially calculating the integrated dose distribution as a first integrated dose distribution during execution of a radiation irradiation procedure for a patient corresponding to the required patient identification information; A second integrated dose distribution is sequentially calculated by adding the first integrated dose distribution to the past integrated dose distribution, and the first integrated dose distribution and the second integrated dose distribution are obtained during execution of the radiation irradiation procedure. Sequential integrated dose distribution calculating means for sequentially displaying on the display unit; and integrated dose distribution registering means for registering the first integrated dose distribution in the storage unit.

Schematic which shows the structure of the radiation irradiation apparatus which concerns on this embodiment. The figure which shows the structural example of a part of radiation irradiation part in case a radiation irradiation apparatus is an X-ray diagnostic apparatus. The figure which shows an example of the data of integrated dose distribution. The figure for demonstrating the detail of the data of accumulated dose distribution. The block diagram which shows the function of the radiation irradiation apparatus which concerns on this embodiment. The figure which shows an example of the data of addition dose distribution. The figure which shows the display screen of an initial total integrated dose distribution and a single integrated dose distribution. The figure which shows the 1st display screen of the total integrated dose distribution and single integrated dose distribution calculated sequentially in the radiation irradiation procedure in execution. The figure which shows the 2nd display screen of the total integrated dose distribution and single integrated dose distribution calculated sequentially in the radiation irradiation technique in execution. The figure which shows the 3rd display screen of the total integrated dose distribution and single integrated dose distribution calculated sequentially in the radiation irradiation procedure in execution. The figure which shows the 4th display screen of the total integrated dose distribution and single integrated dose distribution calculated sequentially in the radiation irradiation procedure in execution. The figure which shows the 5th display screen of the total integrated dose distribution and single integrated dose distribution calculated sequentially in the radiation irradiation procedure in execution. The figure which shows the 6th display screen of the total integrated dose distribution and single integrated dose distribution calculated sequentially in the radiation irradiation procedure in execution. The figure which shows the 6th display screen of the total integrated dose distribution and single integrated dose distribution calculated sequentially in the radiation irradiation procedure in execution. Schematic which shows the structure of the dose management system which concerns on this embodiment. The figure which shows an example of the data of integrated dose distribution. The block diagram which shows the function of the dose management system which concerns on this embodiment. The flowchart which shows operation | movement of the dose management system which concerns on this embodiment.

  A radiation irradiation apparatus and a dose management system according to the present embodiment will be described with reference to the accompanying drawings.

(Radiation irradiation equipment)
FIG. 1 is a schematic diagram illustrating a configuration of a radiation irradiation apparatus according to the present embodiment.

  FIG. 1 shows a radiation irradiation apparatus 10 according to the present embodiment. Examples of the radiation irradiation apparatus 10 include radiation diagnosis apparatuses (radiation inspection apparatuses) such as an X-ray diagnosis apparatus (angio apparatus and X-ray fluoroscopic apparatus) and an X-ray CT (computed tomography) apparatus, and radiation such as a gamma knife. A therapeutic device.

  The radiation irradiation apparatus 10 has a configuration as a general computer. The radiation irradiation apparatus 10 mainly includes basic hardware such as a control unit 11, a storage unit 12, an operation unit 13, a display unit 14, and a communication unit 15, a radiation irradiation unit 16, and an integrated dose distribution DB (database). 17. The control unit 11 is interconnected to each hardware component constituting the radiation irradiation apparatus 10 via a bus as a common signal transmission path.

  The control unit 11 includes a CPU (central processing unit), a RAM (random access memory), and the like. The control unit 11 reads various control programs stored in the storage unit 12 and performs various calculations, and comprehensively controls processing operations in the units 12 to 17.

  The storage unit 12 includes a memory, a hard disk drive (HDD), and the like. The storage unit 12 stores data necessary for executing the control program used in the control unit 11 and various data.

  The operation unit 13 includes a keyboard, a mouse, and the like. When the operation unit 13 is operated by the operator, the operation unit 13 generates an operation signal corresponding to the operation and outputs the operation signal to the control unit 11. In addition, you may provide the touchscreen comprised integrally with the display in the display part 14. FIG.

  The display unit 14 is configured by display means such as an LCD (liquid crystal display). The display unit 14 displays various operation screens on the display unit in response to an instruction from the control unit 11.

  The communication unit 15 is configured by a connector that matches a parallel connection specification or a serial connection specification. The communication unit 15 transmits / receives information to / from an external device on the network.

  The radiation irradiation part 16 is comprised by the structure (not shown) etc. for irradiating a radiation. The radiation irradiation unit 16 is a device that irradiates the patient with radiation under the control of the control unit 11. Here, when the radiation irradiation apparatus 10 is an X-ray diagnostic apparatus, the radiation irradiation unit 16 is a general unit such as a high voltage generation unit, an X-ray source (X-ray tube), an X-ray detector, a C-arm, and a bed. Including various structures. When the radiation irradiation apparatus 10 is an X-ray CT apparatus, the radiation irradiation unit 16 includes general structures such as a high voltage generation unit, an X-ray source, an X-ray detector, a rotation unit, and a bed. When the radiation irradiation apparatus 10 is a radiation therapy apparatus, the radiation irradiation unit 16 includes general structures such as a high voltage generation unit, a radiation source, a rotation unit, and a bed.

  FIG. 2 is a diagram illustrating a configuration example of a part of the radiation irradiation unit 16 when the radiation irradiation apparatus 10 is an X-ray diagnostic apparatus.

  FIG. 2 shows a part of the radiation irradiation unit 16 and the display unit 14. The radiation irradiation unit 16 includes an X-ray tube 31, an X-ray detector 32, a C arm 33, and a top plate 34.

  The X-ray tube 31 generates X-rays by applying a high voltage (tube voltage) from a high voltage generator (not shown). The X-ray tube 31 is attached to one end of the C arm 33, and the X-ray detector 32 is attached to the other end of the C arm 33 so as to face the X-ray tube 31. In addition, although the radiation irradiation part 16 is provided with the C arm 33, and the C arm 33 demonstrates as an example the structure which operate | moves the X-ray tube 31 and the X-ray detector 32 integrally, it is not limited to that case. For example, the X-ray tube 31 and the X-ray detector 32 may be independently operated without the radiation irradiation unit 16 including the C arm 33.

  The X-ray detector 32 is configured by a flat panel detector in which a plurality of detection elements (pixels) that directly or indirectly convert incident X-rays into electric charges are two-dimensionally arranged. However, the X-ray detector 32 does not have I.D. I. (Image intensifier) and a TV camera. When imaging with X-ray irradiation, a subject (patient) P is placed between the X-ray tube 31 and the X-ray detector 32 while being placed on the top plate 34.

  The C-arm 33 is supported from the ceiling base 35 via the suspension arm 36 so as to be rotatable under a predetermined limit with respect to each of the XYZ directions orthogonal to each other in order to freely change the X-ray irradiation angle with respect to the patient P. Is done. A straight line passing from the X-ray focal point of the X-ray tube 31 to the center of the detection surface of the X-ray detector 32 is referred to as an imaging axis. Typically, the imaging angle is defined as an intersection angle of the imaging axis with respect to the XYZ directions. Conventionally, it is expressed as an angle of each of the first oblique position (RAO), the second oblique position (LAO), the third oblique position (LPO), and the fourth oblique position (RPO). Typically, the Z direction is defined as being coincident with the longitudinal direction of the top plate 34.

  Returning to the description of FIG. 1, the integrated dose distribution DB 17 is a storage unit including an HDD and a memory. The integrated dose distribution DB 17 is attached with patient identification information (patient ID) for identifying a patient and execution time information of past radiation irradiation techniques (examination (imaging), treatment, surgery, etc. with radiation irradiation) 3 It is possible to register cumulative dose distribution data indicating the distribution of the three-dimensional cumulative dose (mGy). The integrated dose distribution is generally generated in units of radiation irradiation procedures.

  FIG. 3 is a diagram illustrating an example of accumulated dose distribution data.

  As shown in FIG. 3, the accumulated dose distribution DB 17 (shown in FIG. 1) has a plurality of accumulated dose distributions in which the accumulated doses of the model coordinate system are associated with each body surface position of the three-dimensional human body model (model). Can be registered. Each integrated dose distribution is accompanied by patient identification information and execution time information included in the patient information.

  FIG. 3 shows the case where the accumulated dose distribution is registered with the accumulated dose mapped to the body surface position of the human body model. However, the human body model data and the accumulated dose for each body surface position are separately provided. It may be a thing. Further, instead of the human body model, volume data including the entire patient generated in the past may be used.

  FIG. 4 is a diagram for explaining details of data of the integrated dose distribution.

  As shown in FIG. 4, the accumulated dose distribution in the human body model coordinate system is based on the accumulated doses at the body surface positions (points) Q1 to Q6 of the human body model. The body surface positions Q1 to Q6 have information on (X coordinate, Y coordinate, Z coordinate, integrated dose (mGy)). Here, the X coordinate is the left-right direction of the patient, the Y coordinate is the vertical direction of the patient, and the Z coordinate is the body axis direction of the patient. The accumulated dose at each body surface position may be registered separately from the human body model, or may be registered together. When there is no irradiation dose (body surface positions Q1 to Q6), the integrated dose is 0 mGy.

  FIG. 5 is a block diagram illustrating functions of the radiation irradiation apparatus 10 according to the present embodiment.

  When the control unit 11 configuring the radiation irradiation apparatus 10 according to the present embodiment executes a program, the radiation irradiation apparatus 10 includes an operation support unit 111, a condition setting unit 112, a past integrated dose distribution acquisition unit 113, and a past added dose. It functions as a distribution calculation unit 114, a radiation irradiation execution unit 115, a sequential integrated dose distribution calculation unit 116, and an integrated dose distribution registration unit 117. In addition, although the means 111-117 demonstrates as what functions as software, all or one part of the means 111-117 may be provided in the radiation irradiation apparatus 10 as hardware.

  The operation support unit 111 is an interface such as a GUI (graphical user interface) that mediates the units 112 to 117, the operation unit 13, and the display unit 14.

  The condition setting unit 112 sets patient identification information (patient ID) for acquiring a past integrated dose distribution related to the patient who is the target of the radiation irradiation procedure based on the operation of the operation unit 13 via the operation support unit 111. To do. In addition, the condition setting unit 112 may set a period condition for acquiring only the accumulated dose distribution within a specific period among all past accumulated dose distributions related to the patient who is the subject of the radiation irradiation procedure. .

  The past cumulative dose distribution acquisition unit 113 acquires (reads out) a past cumulative dose distribution corresponding to the patient identification information set by the condition setting unit 112 from the cumulative dose distribution DB 17. When the period condition is set by the condition setting unit 112, the past accumulated dose distribution acquisition unit 113 corresponds to the patient identification information set by the condition setting unit 112 from the accumulated dose distribution DB 17, and the period condition is set. Acquire cumulative dose distribution corresponding to implementation time information within the range.

  For example, when the patient identification information “P1” is set by the condition setting unit 112, the past accumulated dose distribution acquisition unit 113 corresponds to the patient identification information “P1” from a plurality of past accumulated dose distributions shown in FIG. Three past accumulated dose distributions are acquired. When the patient identification information “P1” is set by the condition setting unit 112 and the period condition “2013/01/01 to present” is set, the past cumulative dose distribution acquisition unit 113 includes a plurality of past accumulated dose distribution acquisition units 113 shown in FIG. From the past accumulated dose distribution, two past accumulated dose distributions corresponding to the patient identification information “P1” and within the range of the period condition “2013/01/01 to present” are acquired.

  When the past accumulated dose distribution acquisition unit 113 acquires a plurality of past accumulated dose distributions, the past added dose distribution calculation unit 114 aligns the past accumulated dose distributions for each body surface position of the human body model. By adding (summing up), data of an additional dose distribution over a plurality of past radiation irradiation procedures is calculated.

  That is, when the past accumulated dose distribution acquisition unit 113 has acquired a plurality of past accumulated dose distributions, the past added dose distribution calculation unit 114 adds the past plurality of accumulated doses for each body surface position. The data of the additional dose distribution over a plurality of radiation irradiation techniques is calculated. When the past accumulated dose distribution is acquired by the past accumulated dose distribution acquisition unit 113, the past added dose distribution calculation unit 114 is not necessary.

  FIG. 6 is a diagram illustrating an example of the additional dose distribution data.

  FIG. 6 shows the additive dose distribution. The added dose distribution is obtained by aligning and adding a plurality of past accumulated dose distributions. For example, FIG. 6 is obtained by aligning and adding three integrated dose distributions corresponding to the patient identification information “P1” shown in FIG.

  Returning to the description of FIG. 5, when the past accumulated dose distribution calculating unit 114 aligns and adds the past accumulated dose distributions acquired by the past accumulated dose distribution obtaining unit 113, Weighted addition may be performed by multiplying each by a coefficient (linear function, exponential function, logarithmic function, or a combination thereof) and adding them. The coefficient is set so that past radiation irradiation with a short elapsed time is more important than past radiation irradiation with a long elapsed time. The coefficient is set so as to take into account the degree of recovery of the irradiated cells when performing irradiation for treatment.

  The radiation irradiation executing means 115 executes a radiation irradiation technique for the patient corresponding to the patient identification information set by the condition setting means 112. Here, when the radiation irradiation apparatus 10 is an X-ray diagnostic apparatus or an X-ray CT apparatus, the radiation irradiation execution unit 115 controls the operation of the radiation irradiation unit 16 to display an image related to the examination region of the patient with radiation irradiation. collect. Moreover, when the radiation irradiation apparatus 10 is a radiation therapy apparatus, the radiation irradiation execution means 115 controls the operation | movement of the radiation irradiation part 16, and irradiates a patient's treatment site | part.

  The sequential accumulated dose distribution calculating means 116 sequentially calculates the accumulated dose by integrating the irradiation doses up to the present while the radiation irradiation executing means 115 executes the radiation irradiation procedure. Then, the sequential cumulative dose distribution calculating means 116 sequentially (in real time) calculates the cumulative dose distribution in which the cumulative dose is associated with the body surface position of the human body model.

  The patient body surface position in the real coordinate system is coordinate-converted to the corresponding body surface position of the human body model in the model coordinate system, so that the accumulated dose related to the body surface position of the patient in the real coordinate system is converted to the corresponding body surface of the human body model The accumulated dose at the location. The sequential cumulative dose distribution calculation means 116 has a single cumulative dose distribution calculation means 116a and a total cumulative dose distribution calculation means 116b.

  The single integrated dose distribution calculation means 116a sequentially calculates the integrated dose distribution from the start of the radiation irradiation procedure being executed to the present as the single integrated dose distribution during execution of the radiation irradiation procedure. The single accumulated dose distribution is obtained by associating the accumulated dose from the start of the radiation irradiation procedure being executed to the present to the body surface position of the human body model.

  The total integrated dose distribution calculating unit 116b adds the single integrated dose distribution calculated by the single integrated dose distribution calculating unit 116a to the past added dose distribution calculated by the past added dose distribution calculating unit 114 during execution of the radiation irradiation procedure. The dose distribution is integrated sequentially. Then, the total cumulative dose distribution calculating unit 116b sequentially calculates the total cumulative dose distribution from the start of the radiation irradiation technique related to the earliest cumulative dose distribution to the present among a plurality of past cumulative dose distributions. The total accumulated dose distribution is obtained by associating the accumulated dose from the start of the radiation irradiation procedure related to the earliest accumulated dose distribution to the present among the past accumulated dose distributions with the body surface position of the human body model.

  In addition, when the past one integrated dose distribution is acquired by the past integrated dose distribution acquisition unit 113, the total integrated dose distribution calculation unit 116b is acquired by the past integrated dose distribution acquisition unit 113 during the execution of the radiation irradiation technique. The single integrated dose distribution calculated by the single integrated dose distribution calculating means 116a is sequentially integrated into the past one integrated dose distribution. Then, the total integrated dose distribution calculating unit 116b sequentially calculates the total integrated dose distribution from the start to the present of the radiation irradiation technique related to the past one integrated dose distribution.

  The sequential cumulative dose distribution calculation means 116 sequentially displays the single cumulative dose distribution and the total cumulative dose distribution on the display unit 14 via the operation support means 111 during execution of the radiation irradiation procedure. That is, the sequential cumulative dose distribution calculating unit 116 sequentially displays the single cumulative dose distribution at any timing during the execution of the radiation irradiation procedure, and the total cumulative dose distribution at any timing during the execution of the radiation irradiation procedure. Are sequentially displayed on the display unit 14. The sequential cumulative dose distribution calculating unit 116 sequentially displays both the single cumulative dose distribution and the total cumulative dose distribution during execution of the radiation irradiation procedure (FIG. 8, FIG. 10 to FIG. 14), or single integration. The sequential display of the dose distribution and the sequential display of the total cumulative dose distribution are switched (FIG. 9).

  FIG. 7 is a diagram showing a display screen of the initial single cumulative dose distribution and the total cumulative dose distribution.

  The display screen D0 shown in FIG. 7 includes a single integrated dose distribution and a total integrated dose distribution before the start (initial) of the radiation irradiation procedure by the radiation irradiation execution unit 115 (shown in FIG. 5). Since the radiation irradiation procedure by the radiation irradiation execution means 115 has not yet started, the single cumulative dose distribution indicates only the human body model, and the total cumulative dose distribution indicates the additional dose distribution including the human body model. The total accumulated dose distribution is given color attribute information (including at least one of hue information, lightness information, and saturation information) according to the level of the total accumulated dose for each body surface position of the human body model. .

  Further, since the initial single cumulative dose distribution and the total cumulative dose distribution are both three-dimensional data, when displayed via the display screen D0, a three-dimensional image rendered based on an arbitrary viewpoint is used. Is displayed. Arbitrary viewpoints can be changed as appropriate.

  Note that the display screen shown in FIG. 7 is an initial screen of the first display screen shown in FIG. The same applies to the initial screens of the second display screen to the sixth display screen shown in FIGS.

  FIG. 8 is a diagram showing a first display screen (parallel display screen) of a single cumulative dose distribution and a total cumulative dose distribution that are sequentially calculated in the radiation irradiation procedure being executed.

  A display screen D1 shown in FIG. 8 sequentially displays a single integrated dose distribution and a total integrated dose distribution in parallel. By sequentially updating the single accumulated dose distribution on the display screen D1, the operator can visually recognize the accumulated dose from the start of the radiation irradiation procedure being executed to the present. In addition, the total accumulated dose distribution on the display screen D1 is sequentially updated, so that the operator can visually recognize the accumulated dose from the past radiation irradiation procedure to the present for the patient.

  FIG. 9 is a diagram showing a second display screen (switching display screen) of the single integrated dose distribution and the total integrated dose distribution that are sequentially calculated in the radiation irradiation procedure being executed.

  The display screen shown in FIG. 9 switches between a display screen D2 that sequentially displays a single cumulative dose distribution and a display screen D2 ′ that sequentially displays a total cumulative dose distribution. The single accumulated dose distribution on the display screen D2 is sequentially updated while the display screen D2 is displayed, so that the operator can visually recognize the accumulated dose from the start of the radiation irradiation procedure being performed to the present. . In addition, the total accumulated dose distribution on the display screen D2 ′ is sequentially updated while the display screen D2 ′ is being displayed, so that the operator can visually recognize the accumulated dose from the past radiation irradiation procedure to the present for the patient. can do.

  The display of the integrated dose distribution is switched from the display screen D2 to the display screen D2 ′ and from the display screen D2 ′ to the display screen D2 at a required timing. The switching timing may be based on an operation via the operation unit 13 (illustrated in FIG. 5), or may be based on a timing at which the integrated dose approaches a threshold (timing of alarm sound). Further, the switching timing may be in accordance with a preset time interval.

  FIG. 10 is a diagram showing a third display screen (enlarged / reduced display screen) of the single integrated dose distribution and the total integrated dose distribution sequentially calculated in the radiation irradiation procedure being executed.

  The display screen D3 shown in FIG. 10 is one in which one of the single integrated dose distribution and the total integrated dose distribution is enlarged and sequentially displayed, and the other is reduced and sequentially displayed. For example, on the display screen D3, the single cumulative dose distribution is enlarged and the total cumulative dose distribution is reduced and displayed. By sequentially updating the single cumulative dose distribution on the display screen D3, the operator can visually recognize the cumulative dose from the start of the radiation irradiation procedure being executed to the present. In addition, the total accumulated dose distribution on the display screen D3 is sequentially updated, so that the operator can visually recognize the accumulated dose from the past radiation irradiation procedure to the present for the patient.

  In addition, in the display screen D3 shown in FIG. 10, while displaying the single integrated dose distribution in an enlarged manner, the total integrated dose distribution is displayed in a reduced manner. However, the targets for the enlarged display and the reduced display may be reversed, or the enlarged display and the reduced display may be arbitrarily switched.

  FIG. 11 is a diagram showing a fourth display screen (entire / partial display screen) of a single integrated dose distribution and a total integrated dose distribution sequentially calculated in the radiation irradiation procedure being executed.

  The display screen D4 shown in FIG. 11 displays one of the single integrated dose distribution and the total integrated dose distribution sequentially, and displays the other part sequentially. For example, on the display screen D4, the single integrated dose distribution is all displayed, and the total integrated dose distribution is partially displayed. By sequentially updating all of the single cumulative dose distribution on the display screen D4, the operator can visually recognize the cumulative dose from the start of the radiation irradiation procedure being executed to the present. In addition, by sequentially updating a part of the total cumulative dose distribution on the display screen D4, the operator can visually recognize the cumulative dose from the past radiation irradiation procedure to the present for the patient.

  In addition, on the display screen D4 shown in FIG. 11, while displaying all the single accumulated dose distribution, a part of the total accumulated dose distribution is displayed. However, the object of the full display and the partial display may be reversed, or the full display and the partial display may be arbitrarily switched.

  FIG. 12 is a diagram showing a fifth display screen (shadow / numerical value display screen) of a single cumulative dose distribution and a total cumulative dose distribution sequentially calculated in the radiation irradiation procedure being executed.

  The display screen D5 shown in FIG. 12 displays one of the single integrated dose distribution and the total integrated dose distribution sequentially with shading, and sequentially displays the maximum value of the other integrated dose distribution numerically. For example, on the display screen D5, the shadow of the single cumulative dose distribution and the maximum value of the total cumulative dose of the total cumulative dose distribution are displayed. By sequentially updating the shadow of the single cumulative dose distribution on the display screen D5, the operator can visually recognize the cumulative dose from the start of the radiation irradiation procedure being executed to the present. In addition, the maximum value of the total accumulated dose on the display screen D5 is sequentially updated, so that the operator can sequentially visually recognize the maximum value of the accumulated dose from the past radiation irradiation procedure to the present for the patient. .

  In the display screen D5 shown in FIG. 12, the single integrated dose distribution is shaded and the maximum total integrated dose is numerically displayed. However, the object of the shadow display and the numerical display may be reversed, or the shadow display and the numerical display may be arbitrarily switched.

  FIG. 13 and FIG. 14 are diagrams showing a sixth display screen (superimposed display screen) of a single cumulative dose distribution and a total cumulative dose distribution that are sequentially calculated in the radiation irradiation procedure being executed.

  The display screen D6 shown in FIGS. 13 and 14 is to sequentially display the single integrated dose distribution and the total integrated dose distribution in a superimposed manner with different display patterns. First, on the 3D image (rendering image) of a single cumulative dose distribution, a separate dot is set on the body surface where the single cumulative dose is greater than 0, and the dot is the single cumulative dose on the dot. It is expressed by color attribute information according to the degree (average value of a plurality of single integrated doses on a dot). Then, as shown in the display screen D6 shown in FIG. 13, a dot integrated with color attribute information based on the single integrated dose distribution is superimposed on the three-dimensional image of the total integrated dose distribution, so that the single integration is performed. The dose distribution and the total accumulated dose distribution are displayed in a superimposed manner.

  On the other hand, on the three-dimensional image of the single cumulative dose distribution, a diagonal line is set on the body surface portion where the single cumulative dose is greater than 0, and the diagonal line indicates a single cumulative dose on the diagonal line (a plurality of diagonal cumulative lines). It is expressed by color attribute information according to the degree of the average single dose). Then, as shown in the display screen D6 shown in FIG. 14, a single integrated value is obtained by superimposing a diagonal line with color attribute information based on the single integrated dose distribution on the three-dimensional image of the total integrated dose distribution. The dose distribution and the total accumulated dose distribution are displayed in a superimposed manner.

  By sequentially updating the single accumulated dose distribution on the display screen D6, the operator can visually recognize the accumulated dose from the start of the radiation irradiation procedure being executed to the present. Further, the total accumulated dose distribution on the display screen D6 is sequentially updated, so that the operator can sequentially visually recognize the accumulated dose from the past radiation irradiation procedure to the present for the patient.

  Returning to the description of FIG. 5, the integrated dose distribution registration unit 117 performs the integration calculated by the single integrated dose distribution calculation unit 116 a of the sequential integrated dose distribution calculation unit 116 after the completion of the radiation irradiation procedure by the radiation irradiation execution unit 115. Patient identification information and implementation time information are added to the dose distribution (single integrated dose distribution) and registered in the integrated dose distribution DB 17.

  According to the radiation irradiation apparatus 10 according to the present embodiment, a single cumulative dose distribution and a total cumulative dose distribution are sequentially and effectively displayed on the display unit 14 during a radiation irradiation procedure for a patient, so that a doctor, a technician, or the like The operator can easily monitor the single cumulative dose distribution and the total cumulative dose distribution related to the patient during the radiation irradiation procedure for the patient.

  According to the radiation irradiation apparatus 10 according to the present embodiment, during the radiation irradiation procedure for the patient, the single cumulative dose distribution and the total cumulative dose distribution are sequentially and effectively displayed on the display unit 14, so that the radiation irradiation procedure for the patient is performed. In addition, since the operator can easily determine an appropriate irradiation direction in order to avoid the past irradiation site, radiation damage to the patient can be reduced. Moreover, according to the radiation irradiation apparatus 10 which concerns on this embodiment, an operator is confirming on the display part 14 whether the radiation method in his own radiation irradiation technique is appropriate during the radiation irradiation technique with respect to a patient. The radiation irradiation procedure can be advanced.

(Dose management system)
FIG. 15 is a schematic diagram illustrating a configuration of a dose management system according to the present embodiment.

  FIG. 15 shows a dose management system 30 according to this embodiment. The dose management system 30 includes a dose management device 40 and a plurality of radiation irradiation devices 50 (radiation irradiation devices 50a, 50b,...). Examples of the plurality of radiation irradiation apparatuses 50 include a radiation diagnostic apparatus (radiation inspection apparatus) such as an X-ray diagnostic apparatus and an X-ray CT apparatus, and a radiotherapy apparatus such as a gamma knife.

  The dose management apparatus 40 has a configuration as a general computer. The dose management apparatus 40 is mainly composed of basic hardware such as a control unit 41, a storage unit 42, an operation unit 43, a display unit 44, and a communication unit 45, and an integrated dose distribution DB 47. The control unit 41 is interconnected to each hardware component constituting each dose management apparatus 40 via a bus as a common signal transmission path.

  Since the control part 41-the communication part 45 have a structure and a function equivalent to the control part 11-the communication part 15 shown in FIG. 1, description is abbreviate | omitted.

  The integrated dose distribution DB 47 is a storage unit configured by an HDD or a memory, like the integrated dose distribution DB 17 shown in FIG. The integrated dose distribution DB 47 includes patient identification information (patient ID) for identifying a patient, implementation time information of past radiation irradiation techniques, and apparatus identification information for identifying any of a plurality of radiation irradiation apparatuses that have performed the radiation irradiation techniques. It is possible to register accumulated dose distribution data indicating the distribution of the three-dimensional accumulated dose (mGy) attached to (shown in FIG. 16). The integrated dose distribution is generally generated in units of radiation irradiation procedures.

  Unlike the cumulative dose distribution DB 17 shown in FIG. 1, the cumulative dose distribution DB 47 can register data of a plurality of cumulative dose distributions calculated by each of the radiation irradiation apparatuses 50 and transmitted from each of the radiation irradiation apparatuses 50.

  FIG. 16 is a diagram illustrating an example of accumulated dose distribution data.

  As shown in FIG. 16, in the integrated dose distribution DB 47 (shown in FIG. 15), a plurality of integrated dose distributions in which the integrated dose of the human body model coordinate system is associated with each body surface position of the human body model can be registered. . Each integrated dose distribution is accompanied by patient identification information and execution time information included in the patient information. Note that FIG. 16 shows a case where an accumulated dose distribution in which the accumulated dose is mapped to the body surface position of the human body model is registered, but the human body model data and the accumulated dose for each body surface position are separately provided. It may be a thing.

  Returning to the description of FIG. 15, each of the plurality of radiation irradiation apparatuses 50 has a configuration as a general computer. Each of the plurality of radiation irradiation devices 50 is mainly configured by basic hardware such as a control unit 51, a storage unit 52, an operation unit 53, a display unit 54, and a communication unit 55, and a radiation irradiation unit 56. The The control unit 51 is interconnected to each hardware component constituting each of the plurality of radiation irradiation apparatuses 50 via a bus as a common signal transmission path.

  Since the control part 51-the communication part 55 have a structure and function equivalent to the control part 11-the communication part 15 shown in FIG. 1, description is abbreviate | omitted.

  The radiation irradiation unit 56 has a configuration equivalent to that of the radiation irradiation unit 16 shown in FIG. The radiation irradiation unit 56 is a device that irradiates the patient with radiation under the control of the control unit 51. Here, when any of the plurality of radiation irradiation apparatuses 50 is an X-ray diagnostic apparatus, the radiation irradiation unit 56 of the radiation irradiation apparatus includes a high voltage generation unit, an X-ray source, an X-ray detector, a bed, and the like. Includes general structures. When any of the plurality of radiation irradiation apparatuses 50 is an X-ray CT apparatus, the radiation irradiation unit 56 of the radiation irradiation apparatus includes a high voltage generation unit, an X-ray source, an X-ray detector, a rotation unit, a bed, and the like. Includes general structures. When any of the plurality of radiation irradiation apparatuses is a radiation therapy apparatus, the radiation irradiation unit 56 of the radiation irradiation apparatus includes a general structure such as a high voltage generation unit, a radiation source, a rotation unit, and a bed.

  FIG. 17 is a block diagram illustrating functions of the dose management system 30 according to the present embodiment.

  When the control unit 41 configuring the dose management system 30 according to the present embodiment executes a program, the dose management apparatus 40 includes a condition receiving unit 411, a past integrated dose distribution acquisition unit 412, a past added dose distribution calculation unit 413, It functions as a past addition dose distribution transmission unit 414, an integrated dose distribution reception unit 415, and an integrated dose distribution registration unit 416. Note that although the means 411 to 416 are described as functioning as software, all or part of the means 411 to 416 may be provided in the dose management apparatus 40 as hardware.

  The condition receiving unit 411 receives patient identification information (patient ID) set by a specific radiation irradiation device 50a among the plurality of radiation irradiation devices 50 and transmitted from the radiation irradiation device 50a.

  The past cumulative dose distribution acquisition unit 412 has the same function as the past cumulative dose distribution acquisition unit 113 shown in FIG. That is, the past cumulative dose distribution acquisition unit 412 acquires (reads out) a past cumulative dose distribution corresponding to the patient identification information received by the condition reception unit 411 from the cumulative dose distribution DB 47. When the period condition is set by the condition receiving unit 411, the past accumulated dose distribution acquiring unit 412 corresponds to the patient identification information received by the condition receiving unit 411 from the accumulated dose distribution DB 47, and the period condition is set. Acquire cumulative dose distribution corresponding to implementation time information within the range. Further, when the apparatus condition is set by the condition receiving unit 411, the past accumulated dose distribution acquiring unit 412 corresponds to the patient identification information received by the condition receiving unit 411 from the accumulated dose distribution DB 47, and the apparatus condition The integrated dose distribution corresponding to the device identification information within the range is acquired.

  The past added dose distribution calculating means 413 has the same function as the past added dose distribution calculating means 114 shown in FIG. That is, when the past accumulated dose distribution acquisition unit 412 has acquired a plurality of past accumulated dose distributions, the past added dose distribution calculation means 413 aligns the past plurality of accumulated dose distributions to position the body surface of the human body model. By adding (summing up) every time, data of an additional dose distribution over a plurality of past radiation irradiation procedures is calculated.

  That is, when the past accumulated dose distribution acquisition unit 412 receives a plurality of past accumulated dose distributions, the past added dose distribution calculation unit 413 adds the past plurality of accumulated doses for each body surface position. The data of the additional dose distribution over a plurality of radiation irradiation techniques is calculated. Note that when the past accumulated dose distribution is acquired by the past accumulated dose distribution acquisition unit 412, the past added dose distribution calculation unit 413 is unnecessary. Here, an example of the data of the additional dose distribution is the same as that shown in FIG.

  The past added dose distribution calculation means 413 may be provided in each of the plurality of radiation irradiation apparatuses 50.

  The past added dose distribution transmitting unit 414 transmits the past added dose distribution calculated by the past added dose distribution calculating unit 413 to the radiation irradiation apparatus 50a that has transmitted the patient identification information.

  The integrated dose distribution receiving means 415 receives the integrated dose distribution calculated by the radiation irradiation apparatus 50a that transmitted the patient identification information and transmitted from the radiation irradiation apparatus 50a.

  The integrated dose distribution registration unit 416 has the same function as the integrated dose distribution registration unit 117 shown in FIG. That is, the integrated dose distribution registration means 416 includes patient identification information, execution time information, and apparatus in the integrated dose distribution (single integrated dose distribution) calculated by the radiation irradiation apparatus 50a after the radiation irradiation procedure by the radiation irradiation apparatus 50a. The identification information is attached and registered in the integrated dose distribution DB 47.

  Further, when the control unit 51 constituting the dose management system 30 according to the present embodiment executes a program, each of the plurality of radiation irradiation apparatuses 50 includes an operation support unit 511, a condition setting unit 512, a condition transmission unit 513, It functions as past added dose distribution receiving means 514, radiation irradiation executing means 515, sequential cumulative dose distribution calculating means 516, and cumulative dose distribution transmitting means 517. In addition, although the means 511-517 demonstrates as what functions as software, all or one part of the means 511-517 may be provided in each of several radiation irradiation apparatus 50 as hardware.

  The operation support means 511 has the same function as the operation support means 111 shown in FIG. That is, the operation support unit 511 functions as an interface such as a GUI that mediates the units 512 to 517, the operation unit 53, and the display unit 54.

  The condition setting means 512 has the same function as the condition setting means 112 shown in FIG. That is, the condition setting means 512 is patient identification information (patient ID) for acquiring a past integrated dose distribution related to a patient who is a target of a radiation irradiation procedure based on the operation of the operation unit 53 via the operation support means 511. Set. In addition, the condition setting unit 512 includes a period condition for acquiring only an accumulated dose distribution within a specific period among all past accumulated dose distributions related to a patient who is a target of the radiation irradiation procedure, and a specific radiation irradiation. The apparatus condition for acquiring only the integrated dose distribution generated by the radiation irradiation technique of the apparatus may be set.

  The condition transmission unit 513 transmits the patient identification information set by the condition setting unit 512 to the condition reception unit 411 of the dose management apparatus 40.

  The past added dose distribution receiving unit 514 receives the past added dose distribution transmitted from the past added dose distribution transmitting unit 414 of the dose management apparatus 40.

  The radiation irradiation execution means 515 has the same function as the radiation irradiation execution means 115 shown in FIG. That is, the radiation irradiation execution unit 515 executes the radiation irradiation technique for the patient corresponding to the patient identification information set by the condition setting unit 512. Here, when any of the plurality of radiation irradiation apparatuses 50 is an X-ray diagnostic apparatus or an X-ray CT apparatus, the radiation irradiation execution unit 515 of the radiation irradiation apparatus controls the operation of the radiation irradiation unit 56 to perform radiation irradiation. The image regarding the examination site | part of a patient is collected. Further, when any of the plurality of radiation irradiation apparatuses 50 is a radiation therapy apparatus, the radiation irradiation execution unit 515 of the radiation irradiation apparatus controls the operation of the radiation irradiation unit 56 to irradiate the treatment site of the patient.

  The sequential cumulative dose distribution calculation means 516 has the same function as the sequential cumulative dose distribution calculation means 116 shown in FIG. That is, the sequential cumulative dose distribution calculating means 516 sequentially calculates the cumulative dose by integrating the irradiation doses up to now while the radiation irradiation executing means 515 is executing the radiation irradiation technique. The sequential cumulative dose distribution calculation means 516 sequentially calculates the cumulative dose distribution in which the cumulative dose is associated with the body surface position of the human body model.

  The patient body surface position in the real coordinate system is coordinate-converted to the corresponding body surface position of the human body model in the model coordinate system, so that the accumulated dose related to the body surface position of the patient in the real coordinate system is converted to the corresponding body surface of the human body model. The accumulated dose at the location. The sequential cumulative dose distribution calculation means 516 includes a single cumulative dose distribution calculation means 516a and a total cumulative dose distribution calculation means 516b.

  The single cumulative dose distribution calculation means 516a has the same function as the single cumulative dose distribution calculation means 116a. That is, the single cumulative dose distribution calculating means 516a sequentially calculates the cumulative dose distribution from the start of the radiation irradiation procedure being executed to the present as the single cumulative dose distribution during the execution of the radiation irradiation procedure. The single accumulated dose distribution is obtained by associating the accumulated dose from the start of the radiation irradiation procedure being executed to the present to the body surface position of the human body model.

  The total integrated dose distribution calculating unit 516b adds the past integrated dose distribution received by the past added dose distribution receiving unit 514 during the radiation irradiation procedure to the single integrated dose distribution calculating unit 516a. The dose distribution is integrated sequentially. Then, the total integrated dose distribution calculating unit 516b sequentially calculates the total integrated dose distribution from the start of the radiation irradiation technique related to the earliest integrated dose distribution to the present among the plurality of past integrated dose distributions. The total accumulated dose distribution is obtained by associating the accumulated dose from the start of the radiation irradiation procedure related to the earliest accumulated dose distribution to the present among the past accumulated dose distributions with the body surface position of the human body model.

  When the past cumulative dose distribution is acquired by the past cumulative dose distribution acquisition unit 412, the total cumulative dose distribution calculation unit 516 b simply adds the past cumulative dose distribution to the past cumulative dose distribution during execution of the radiation irradiation procedure. The single integrated dose distribution calculated by the one integrated dose distribution calculating means 516a is sequentially integrated. Then, the total integrated dose distribution calculating unit 516b sequentially calculates the total integrated dose distribution from the start of the radiation irradiation technique related to the past one integrated dose distribution to the present.

  The sequential cumulative dose distribution calculation means 516 displays the single cumulative dose distribution and the total cumulative dose distribution on the display unit 54 (corresponding to the display unit 14 shown in FIG. 2) via the operation support means 511 during the radiation irradiation procedure. Are sequentially displayed (FIGS. 8 and 10 to 14). Alternatively, the sequential cumulative dose distribution calculating unit 516 may perform sequential display on the display unit 54 via the operation support unit 511 for single integrated dose distribution and operation support unit 511 for the total cumulative dose distribution during execution of the radiation irradiation procedure. The display is switched to the sequential display on the display unit 54 (FIG. 9).

  The integrated dose distribution transmission means 517 is an integrated dose distribution (single integrated dose distribution) calculated by the single integrated dose distribution calculation means 516a of the sequential integrated dose distribution calculation means 516 after the radiation irradiation procedure by the radiation irradiation execution means 515 is completed. ) Is transmitted to the integrated dose distribution receiving means 415 of the dose management apparatus 40 together with the patient identification information, the execution time information, and the apparatus identification information.

  Subsequently, the operation of the dose management system 30 according to the present embodiment will be described with reference to FIGS. 15 and 18.

  FIG. 18 is a flowchart showing the operation of the dose management system 30 according to this embodiment.

  One radiation irradiation device 50a among the plurality of radiation irradiation devices 50 of the dose management system 30 sets patient identification information “patient P1” for acquiring a past integrated dose distribution related to a patient who is a target of the radiation irradiation technique. (Step ST1). In addition, in step ST1, among all past accumulated dose distributions related to the patient who is the subject of the radiation irradiation procedure, a period condition for acquiring only the accumulated dose distribution within a specific period, or a specific radiation irradiation device An apparatus condition for acquiring only the integrated dose distribution generated by the radiation irradiation technique may be set.

  The radiation irradiation apparatus 50a transmits the patient identification information “patient P1” set in step ST1 to the dose management apparatus 40 (step ST2).

  The dose management apparatus 40 receives the patient identification information “patient P1” transmitted in step ST2, and stores the past patient identification information “patient P1” corresponding to the received patient identification information “patient P1” from the integrated dose distribution DB 47 (shown in FIG. 16). An integrated dose distribution is acquired (step ST3).

  When a plurality of past cumulative dose distributions are acquired in step ST3, the dose management apparatus 40 aligns and adds past past cumulative dose distributions, thereby adding doses over past past radiation irradiation procedures. Distribution data is calculated (step ST4).

  The dose management device 40 transmits the past added dose distribution calculated in step ST4 to the radiation irradiation device 50a (step ST5).

  The radiation irradiation apparatus 50a receives the past added dose distribution transmitted in step ST5, and starts a radiation irradiation procedure for the patient corresponding to the patient identification information “patient P1” set in step ST1 (step S1). ST6).

  The radiation irradiation apparatus 50a calculates the integrated dose distribution as a single integrated dose distribution during execution of the radiation irradiation procedure, and displays it on the display unit 54 (step ST7). At the same time, during execution of the radiation irradiation procedure, the radiation irradiation apparatus 50a adds the single cumulative dose distribution calculated in step ST7 to the past cumulative dose distribution received in step ST6 to obtain the total cumulative dose distribution. It is calculated and displayed on the display unit 54 (corresponding to the display unit 14 shown in FIG. 2) (step ST8). Display screens in steps ST7 and ST8 are shown in FIGS.

  The display of the single integrated dose distribution and the total integrated dose distribution in steps ST7 and ST8 is repeated until the end of the radiation irradiation procedure being executed.

  The radiation irradiation apparatus 50a attaches patient identification information, execution time information, and apparatus identification information to the integrated dose distribution (single integrated dose distribution) calculated in step ST7 after completion of the radiation irradiation procedure started in step ST6. And it transmits to the dose management apparatus 40 (step ST9).

  The dose management device 40 receives the accumulated dose distribution transmitted in step ST9, and registers the received accumulated dose distribution in the accumulated dose distribution DB 47 (step ST10).

  Next, at a timing after step ST1, one radiation irradiation device 50b among the plurality of radiation irradiation devices 50 of the dose management system 30 acquires a past integrated dose distribution related to a patient who is a target of the radiation irradiation procedure. The patient identification information “patient P1” is set (step ST11). In addition, in step ST11, a period condition for acquiring only the accumulated dose distribution within a specific period among all the past accumulated dose distributions regarding the patient who is the target of the radiation irradiation procedure may be set.

  The radiation irradiation apparatus 50b transmits the patient identification information “patient P1” set in step ST11 to the dose management apparatus 40 (step ST12).

  The dose management apparatus 40 receives the patient identification information “patient P1” transmitted in step ST12, and acquires the past accumulated dose distribution corresponding to the received patient identification information “patient P1” from the accumulated dose distribution DB 47. (Step ST13). Here, since the patient identification information “patient P1” received in step ST3 matches the patient identification information “patient P1” received in step ST13, the past integrated dose distribution acquired in step ST13 is: The accumulated dose distribution registered in step ST10 is included.

  When a plurality of past cumulative dose distributions are acquired in step ST13, the dose management apparatus 40 aligns and adds past past cumulative dose distributions, thereby adding doses over past past radiation irradiation procedures. Distribution data is calculated (step ST14).

  The dose management device 40 transmits the past added dose distribution calculated in step ST14 to the radiation irradiation device 50b (step ST15).

  The radiation irradiation apparatus 50b receives the past added dose distribution transmitted in step ST15, and starts a radiation irradiation procedure for the patient corresponding to the patient identification information “patient P1” set in step ST11 (step S11). ST16).

  The radiation irradiation apparatus 50b calculates the integrated dose distribution as a single integrated dose distribution during execution of the radiation irradiation procedure, and displays it on the display unit 54 (step ST17). At the same time, the radiation irradiation apparatus 50b adds the single cumulative dose distribution calculated in step ST17 to the past cumulative dose distribution received in step ST16 during execution of the radiation irradiation procedure, thereby obtaining the total cumulative dose distribution. It is calculated and displayed on the display unit 54 (corresponding to the display unit 14 shown in FIG. 2) (step ST18). Display screens in steps ST17 and ST18 are shown in FIGS.

  The display of the single integrated dose distribution and the total integrated dose distribution in steps ST17 and ST18 is repeated until the radiation irradiation procedure being executed is completed.

  The radiation irradiation apparatus 50b attaches patient identification information, execution time information, and apparatus identification information to the integrated dose distribution (single integrated dose distribution) calculated in step ST17 after completion of the radiation irradiation procedure started in step ST16. And it transmits to the dose management apparatus 40 (step ST19).

  The dose management device 40 receives the accumulated dose distribution transmitted in step ST19, and registers the received accumulated dose distribution in the accumulated dose distribution DB 47 (step ST20).

  According to the dose management system 30 according to the present embodiment, a single cumulative dose distribution and a total cumulative dose distribution are sequentially and effectively displayed on the display unit 54 during a radiation irradiation procedure for a patient, so that doctors, technicians, etc. The operator can easily monitor the single cumulative dose distribution and the total cumulative dose distribution related to the patient during the radiation irradiation procedure for the patient.

  According to the dose management system 30 according to the present embodiment, during the radiation irradiation procedure for the patient, the single cumulative dose distribution and the total cumulative dose distribution are sequentially and effectively displayed on the display unit 54, whereby the radiation irradiation procedure for the patient is performed. In addition, since the operator can easily determine an appropriate irradiation direction in order to avoid the past irradiation site, radiation damage to the patient can be reduced. Further, according to the dose management system 30 according to the present embodiment, the operator confirms whether or not the radiation irradiation method in his / her radiation irradiation procedure is appropriate during the radiation irradiation procedure for the patient on the display unit 54. The radiation irradiation procedure can be advanced.

  Although several embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 Radiation irradiation apparatus 11 Control part 14,54 Display part 17,47 Integrated dose distribution DB
30 Dose management system 40 Dose management device 50 Multiple radiation irradiation apparatuses 111, 511 Operation support means 112, 512 Condition setting means 113, 412 Past accumulated dose distribution acquisition means 114, 413 Past addition dose distribution calculation means 115, 515 Execution of radiation irradiation Means 116, 516 Sequential integrated dose distribution calculating means 117, 416 Integrated dose distribution registration means 411 Condition receiving means 414 Past added dose distribution transmitting means 415 Integrated dose distribution receiving means 513 Condition transmitting means 514 Past added dose distribution receiving means 517 Integrated dose distribution Transmission means

Irradiation apparatus according to the present embodiment, in order to solve the problems described above, the past cumulative dose distribution obtaining means for obtaining a cumulative dose distribution in the past, during the execution of the radiological irradiation procedure, in the irradiation procedures the cumulative dose distribution with sequentially calculates a first cumulative dose distribution, the sequentially calculates a second cumulative dose distribution by accumulating said first cumulative dose distribution on historical cumulative dose distribution, and the irradiation procedure Oite during execution, the cause displayed on the display unit a first cumulative dose distribution and the second cumulative dose distribution, or selectively to one of said first cumulative dose distribution and the second cumulative dose distribution having a sequential cumulative dose distribution calculating means is displayed on the display unit.

Dose control system according to the present embodiment, in order to solve the problems described above, the past cumulative dose distribution obtaining means for obtaining a past cumulative dose distribution from the radiation irradiating device, during radiological irradiation procedure, the radiation The cumulative dose distribution in the irradiation procedure is sequentially calculated as the first cumulative dose distribution, the second cumulative dose distribution is sequentially calculated by adding the first cumulative dose distribution to the past cumulative dose distribution, and the radiation Oite during the irradiation procedure, the so displayed on the display unit a first cumulative dose distribution and the second cumulative dose distribution, or, one of the first cumulative dose distribution and the second cumulative dose distribution It has a sequential cumulative dose distribution calculating means to display selectively displaying unit.

Claims (1)

Past accumulated dose distribution acquisition means for acquiring a past accumulated dose distribution corresponding to required patient identification information from a storage unit capable of registering a plurality of accumulated dose distributions;
The integrated dose distribution is sequentially calculated as the first integrated dose distribution during execution of the radiation irradiation procedure for the patient corresponding to the required patient identification information, and the first integrated dose distribution is integrated to the past integrated dose distribution. A sequential cumulative dose distribution calculating means for sequentially calculating a second cumulative dose distribution in the display, and sequentially displaying the first cumulative dose distribution and the second cumulative dose distribution on a display unit during execution of the radiation irradiation procedure;
An accumulated dose distribution registration means for registering the first accumulated dose distribution in the storage unit;
Radiation irradiation apparatus having