JP2020058704A - Introduction support method of radiation treatment planning device, introduction support device of radiation treatment planning device, and program - Google Patents
Introduction support method of radiation treatment planning device, introduction support device of radiation treatment planning device, and program Download PDFInfo
- Publication number
- JP2020058704A JP2020058704A JP2018193369A JP2018193369A JP2020058704A JP 2020058704 A JP2020058704 A JP 2020058704A JP 2018193369 A JP2018193369 A JP 2018193369A JP 2018193369 A JP2018193369 A JP 2018193369A JP 2020058704 A JP2020058704 A JP 2020058704A
- Authority
- JP
- Japan
- Prior art keywords
- radiation treatment
- treatment planning
- radiation
- verification
- dose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Radiation-Therapy Devices (AREA)
Abstract
Description
本発明は、放射線治療計画装置の導入支援方法、放射線治療計画装置の導入支援装置、及びプログラムに関し、具体的には、放射線治療計画装置の導入における検証行程を短期間で完了することができる放射線治療計画装置の導入支援方法、放射線治療計画装置の導入支援装置、及びプログラムに関する。 The present invention relates to a radiation treatment planning apparatus introduction support method, a radiation treatment planning apparatus introduction support apparatus, and a program, and more specifically, a radiation process capable of completing a verification process in the introduction of the radiation treatment planning apparatus in a short period of time. The present invention relates to a treatment planning device introduction support method, a radiation treatment planning device introduction support device, and a program.
がん細胞その他の細胞に放射線を照射する放射線治療を行うにあたって、例えば特許文献１の放射線治療装置が知られている。また、放射線治療を行う際に、放射線の照射方向や照射形状、投与線量等の治療計画を作成し、前記治療計画における患者体内線量分布を計算する装置として、例えば特許文献２の放射線治療計画装置が知られている。 BACKGROUND ART For performing radiotherapy for irradiating cancer cells and other cells with radiation, for example, a radiotherapy device disclosed in Patent Document 1 is known. Further, as a device for creating a treatment plan such as a radiation irradiation direction, a radiation shape, and an administration dose when performing radiotherapy, and calculating a dose distribution in a patient in the treatment plan, for example, a radiotherapy planning device disclosed in Patent Document 2 It has been known.
医療機関が放射線治療装置を導入する際には、一般にコミッショニングと呼ばれる検証行程を行うことが通常である。コミッショニングでは、放射線治療装置が照射する放射線のビームデータ測定、当該測定したビームデータに基づく放射線治療装置のモデル化、放射線治療計画装置を用いたシミュレーションを行い、結果に基づくデータの補正等を行うことが通常である。 When a medical institution introduces a radiation treatment apparatus, it is usual to perform a verification process generally called commissioning. In commissioning, the beam data of the radiation emitted by the radiation treatment device is measured, the radiation treatment device is modeled based on the measured beam data, the radiation treatment planning device is used for simulation, and the data is corrected based on the results. Is normal.
放射線治療計画装置の導入においては、放射線治療装置が照射する放射線の線質ごとに、検証用の治療計画を作成し、当該作成した治療計画に基づいて実際に放射線治療装置を動作させる。そして、放射線治療装置が照射した放射線の線量を計測し、当該計測した線量の測定値を基準として、臨床を想定したシミュレーションにより放射線治療計画装置で計算した線量が許容範囲内であることを検証する。当該計算した線量値が許容範囲内に収まらない場合は、放射線治療計画装置の設定値を修正する。 In introducing the radiation treatment planning apparatus, a treatment plan for verification is created for each radiation quality of the radiation irradiated by the radiation treatment apparatus, and the radiation treatment apparatus is actually operated based on the created treatment plan. Then, the dose of radiation irradiated by the radiotherapy apparatus is measured, and based on the measured value of the measured dose, it is verified that the dose calculated by the radiotherapy planning apparatus is within the allowable range by a simulation assuming clinical practice. . If the calculated dose value does not fall within the allowable range, correct the setting value of the radiation treatment planning device.
放射線治療装置、および、放射線治療計画装置は近年の高機能・高精度化に伴い、前記導入時において検証が必要な治療計画の量も増加する傾向にある。検証が必要な治療計画の量の増加は放射線治療計画装置の迅速な導入を妨げる原因となっていた。 The radiation treatment apparatus and the radiation treatment planning apparatus have recently become highly functional and highly accurate, and the amount of the treatment plan that needs to be verified at the time of introduction has been increasing. The increase in the volume of treatment planning that needs verification has hindered the rapid introduction of radiation treatment planning equipment.
本発明は上記の問題に着目し、放射線治療計画装置の導入における検証行程を短期間で完了することができる放射線治療計画装置の導入支援方法、放射線治療計画装置の導入支援装置、及びプログラムを提供することを、その課題とするものである。 The present invention focuses on the above problems, and provides a radiation treatment planning apparatus introduction support method, a radiation treatment planning apparatus introduction support apparatus, and a program capable of completing a verification process in the introduction of a radiation treatment planning apparatus in a short period of time. The task is to do.
前述の課題を解決することを目的としてなされた本発明に係る放射線治療計画装置の導入方法は、コンピュータを用いた放射線治療計画装置の導入支援方法であって、前記コンピュータが、予め前記コンピュータに記録された検証用治療計画情報を、前記放射線治療計画装置および前記放射線治療計画装置が動作させる放射線治療装置に適した形式に変換するステップと、前記検証用治療計画情報に基づいて前記放射線治療計画装置が算出した放射線の線量である計算線量値と、前記検証用治療計画情報に基づいて前記放射線治療装置が照射した放射線を計測した線量を示す測定線量値の誤差を算出するステップと、前記算出した誤差から、前記放射線治療計画装置に入力する設定情報を算出するステップと、を実行することを特徴としている。 A method for introducing a radiation treatment planning apparatus according to the present invention, which has been made for the purpose of solving the above-mentioned problems, is a method for supporting introduction of a radiation treatment planning apparatus using a computer, wherein the computer records in advance in the computer. Converting the verified verification treatment plan information into a format suitable for the radiation treatment planning apparatus and the radiation treatment apparatus operated by the radiation treatment planning apparatus; and the radiation treatment planning apparatus based on the verification treatment plan information. Calculated dose value which is the dose of radiation calculated, and a step of calculating the error of the measured dose value indicating the dose of the radiation irradiated by the radiation treatment apparatus based on the treatment plan information for verification, and the calculated Calculating setting information to be input to the radiation treatment planning apparatus from the error, .
本発明に係る放射線治療計画装置の導入方法は、検証用治療計画情報がＤＩＣＯＭ規格に準拠したフォーマットの情報であり、少なくとも診断画像情報と、治療計画情報を含むようにすると好適である。 In the method of introducing the radiation treatment planning apparatus according to the present invention, it is preferable that the verification treatment plan information is information in a format conforming to the DICOM standard, and at least the diagnostic image information and the treatment plan information are included.
本発明に係る放射線治療計画装置の導入支援装置は、記録部に予め記録された検証用治療計画情報を、放射線治療計画装置および放射線治療装置に適した形式に変換する検証用治療計画情報変換部と、前記検証用治療計画情報に基づいて前記放射線治療計画装置が算出した放射線の線量である計算線量値と、前記検証用治療計画情報に基づいて前記放射線治療装置が照射した放射線を計測した線量を示す測定線量値の誤差を算出する線量誤差算出部と、前記算出した誤差から、前記放射線治療計画装置に入力する設定情報を算出する設定情報算出部と、を備えることを特徴としている。 An introduction support device for a radiation treatment planning apparatus according to the present invention includes a verification treatment plan information conversion unit that converts verification treatment plan information recorded in advance in a recording unit into a format suitable for the radiation treatment planning device and the radiation treatment apparatus. And a calculated dose value that is a dose of radiation calculated by the radiation treatment planning apparatus based on the verification treatment plan information, and a dose measured by the radiation treatment apparatus based on the verification treatment plan information. And a setting information calculation unit that calculates setting information to be input to the radiation treatment planning apparatus from the calculated error.
本発明の構成によれば、放射線治療計画装置の導入において予め記録された検証用治療計画情報を用いて放射線治療装置および放射線治療計画装置を動作させることにより、検証の度に治療計画を作成する工数を省略することができるので、放射線治療計画装置の導入をおこなうことができる。 According to the configuration of the present invention, by operating the radiation treatment apparatus and the radiation treatment planning apparatus by using the treatment plan information for verification recorded in advance when introducing the radiation treatment planning apparatus, a treatment plan is created each time the verification is performed. Since man-hours can be omitted, a radiation treatment planning device can be introduced.
以下、本発明の実施形態の一例について図面を参照して説明する。図１は、本発明に係る放射線治療計画装置の導入支援装置１の構成を示した図である。 Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the configuration of an introduction support apparatus 1 of a radiation treatment planning apparatus according to the present invention.
図１で示すように、本実施形態に係る放射線治療計画装置の導入支援装置１は、操作部１１、出力部１２、記録部１３、検証用治療計画情報変換部１４、線量誤差算出部１５、設定情報算出部１６を備えている。また、導入支援装置１は放射線治療計画装置２及び放射線治療装置３と通信可能に接続されている。 As shown in FIG. 1, the introduction support apparatus 1 of the radiation treatment planning apparatus according to the present embodiment has an operation unit 11, an output unit 12, a recording unit 13, a verification treatment plan information conversion unit 14, a dose error calculation unit 15, The setting information calculation unit 16 is provided. Further, the introduction support device 1 is communicatively connected to the radiation treatment planning device 2 and the radiation treatment device 3.
なお、本実施形態における導入支援装置１は放射線治療計画装置２及び放射線治療装置３と通信可能に接続されており、後述する検証用治療計画情報等必要な情報の送受信をネットワーク通信により行うことが可能な構成としているが、例えばＵＳＢメモリやＣＤ−ＲＯＭ等の記録媒体を用いて情報を受け渡す場合には導入支援装置１が放射線治療計画装置２及び放射線治療装置３と接続されていなくてもよい。 The introduction support apparatus 1 according to the present embodiment is communicatively connected to the radiation treatment planning apparatus 2 and the radiation treatment apparatus 3, and can transmit and receive necessary information such as verification treatment plan information described later by network communication. Although it is possible, when the information is transferred using a recording medium such as a USB memory or a CD-ROM, the introduction support apparatus 1 may be connected to neither the radiation treatment planning apparatus 2 nor the radiation treatment apparatus 3. Good.
本実施形態では、導入支援装置１として汎用のコンピュータ、すなわち筐体内にＣＰＵとメモリ、記憶装置、入出力装置、ネットワーク通信装置等がバスにより接続され、記憶装置に予め記憶されたプログラムをメモリにロードしてＣＰＵが実行することにより所定の機能を発揮する装置を用いている。本実施形態の導入支援装置１は、後述する処理をコンピュータに実行させるプログラムが予め記憶されており、当該プログラムをコンピュータに実行させることにより導入支援装置１として機能させるものである。 In this embodiment, a general-purpose computer as the introduction support device 1, that is, a CPU, a memory, a storage device, an input / output device, a network communication device, and the like are connected by a bus in a housing, and a program stored in advance in the storage device is stored in the memory. A device that performs a predetermined function by being loaded and executed by the CPU is used. The introduction support apparatus 1 of the present embodiment prestores a program that causes a computer to execute the processing described below, and causes the computer to execute the program to function as the introduction support apparatus 1.
なお、本実施形態では汎用のコンピュータを導入支援装置１として用いているが、導入支援装置１は専用のコンピュータとして設計されたものでもよく、また、導入支援装置１が単一ではなく複数のコンピュータにより構成されていてもよい。例えば、記録部１３が記憶する情報の一部を遠隔地に設置したデータベースシステム等に記憶させるようにしてもよい。また、ハードウェア構成として備え付けのコンピュータでもよいし、持ち運びが可能なノート型コンピュータや、タブレット型コンピュータを用いてもよい。 Although a general-purpose computer is used as the introduction support device 1 in this embodiment, the introduction support device 1 may be designed as a dedicated computer, and the introduction support device 1 is not a single computer but a plurality of computers. It may be configured by. For example, a part of the information stored in the recording unit 13 may be stored in a database system installed in a remote place. Further, a computer provided as a hardware configuration may be used, or a portable notebook computer or tablet computer may be used.
操作部１１は、作業者等が導入支援装置１を操作する入力装置であり、具体的には、導入支援装置１が備えるキーボード及びマウスである。なお、操作部１１としては他の入力デバイスを用いてもよく、例えば後述する出力部１２のディスプレイとしてタッチパネルディスプレイを用いる場合には、当該タッチパネルを操作部１１として使用してもよい。 The operation unit 11 is an input device with which a worker or the like operates the introduction support device 1, and is specifically a keyboard and a mouse included in the introduction support device 1. Note that another input device may be used as the operation unit 11, and for example, when a touch panel display is used as the display of the output unit 12 described below, the touch panel may be used as the operation unit 11.
出力部１２は、導入支援装置１の計算等結果を出力する出力装置であり、具体的には、導入支援装置１が備えるディスプレイである。出力部１２としてはディスプレイ以外にも、周知のプリンタ等の他の装置を用いてもよい。 The output unit 12 is an output device that outputs results such as calculations of the introduction support device 1, and is specifically a display included in the introduction support device 1. As the output unit 12, other devices such as a well-known printer may be used in addition to the display.
記録部１３は、本実施形態における導入支援装置１が用いる検証用治療計画情報を記録する。記録部１３の具体的な構成は周知の技術を用いてよく、例えば導入支援装置１がそなえるＨＤＤ（ハード・ディスク・ドライブ）等の記憶領域の一部又は全部をもって記録部１３としてもよいし、ＲＤＢＭＳ（リレーショナル・データベース・マネージメント・システム）を用いてもよい。 The recording unit 13 records the verification treatment plan information used by the introduction support device 1 in the present embodiment. A well-known technique may be used for a specific configuration of the recording unit 13, and for example, a part or all of a storage area such as an HDD (hard disk drive) included in the installation support device 1 may be the recording unit 13. RDBMS (Relational Database Management System) may be used.
検証用治療計画情報変換部１４は、記録部１３に記録された検証用治療計画情報を放射線治療計画装置２及び放射線治療装置３が読込可能な情報に、データフォーマット等の返還を行う。 The verification treatment plan information conversion unit 14 returns the verification treatment plan information recorded in the recording unit 13 to information that can be read by the radiation treatment planning apparatus 2 and the radiation treatment apparatus 3, such as a data format.
線量誤差算出部１５は、前述の検証用治療計画情報に基づいて、放射線治療装置３が実際に照射した放射線を測定した測定線量値と、放射線治療装置３が照射する放射線の線量を放射線治療計画装置２のシミュレーションにより算出した計算線量値とを比較し、誤差を算出する。 The dose error calculating unit 15 calculates the measured dose value of the radiation actually irradiated by the radiation treatment apparatus 3 and the dose of the radiation irradiated by the radiation treatment apparatus 3 based on the above-mentioned verification treatment plan information. The calculated dose value calculated by the simulation of the device 2 is compared, and the error is calculated.
設定情報算出部１６は、前述の線量誤差算出部１５が算出した測定線量値と計算線量値の誤差に基づいて、放射線治療計画装置２に入力する設定値を算出する。 The setting information calculation unit 16 calculates the setting value to be input to the radiation treatment planning device 2 based on the error between the measured dose value calculated by the dose error calculation unit 15 and the calculated dose value.
前述のとおり、放射線治療計画装置のコミッショニングでは、放射線治療装置が実際に照射した放射線を測定した測定線量値を基準として、放射線治療計画装置がシミュレーションにより算出した計算線量値が許容範囲内に収まるよう、放射線治療計画装置の設定値を入力・修正する。本実施形態では、測定線量値と計算線量値の誤差に基づいて導入支援装置１の設定情報算出部１６が設定値を算出するものである。 As mentioned above, in the commissioning of the radiation treatment planning device, the calculated dose value calculated by simulation by the radiation treatment planning device should be within the allowable range based on the measured dose value of the radiation actually irradiated by the radiation treatment device. , Input / correct the setting value of the radiation treatment planning device. In the present embodiment, the setting information calculation unit 16 of the introduction support device 1 calculates the set value based on the error between the measured dose value and the calculated dose value.
以上が本実施形態に係る放射線治療計画装置の導入支援装置１の構成である。前述したように、本実施形態では導入支援装置１として汎用のコンピュータを用いており、前述の検証用治療計画情報変換部１４、線量誤差算出部１５、及び設定情報算出部１６は、導入支援装置１の記憶装置に予め記憶されたプログラムを導入支援装置１のＣＰＵが実行することにより機能を発揮する。 The above is the configuration of the introduction support apparatus 1 of the radiation treatment planning apparatus according to the present exemplary embodiment. As described above, in the present embodiment, a general-purpose computer is used as the introduction support device 1, and the verification treatment plan information conversion unit 14, dose error calculation unit 15, and setting information calculation unit 16 described above are used as the introduction support device. The function is exhibited by the CPU of the introduction support device 1 executing a program stored in advance in the first storage device.
次いで、本実施形態に係る放射線治療計画装置の導入支援装置１を用いて、放射線治療装置２の検証を行う際の処理の流れについて説明する。 Next, the flow of processing when verifying the radiation treatment apparatus 2 using the introduction support apparatus 1 of the radiation treatment planning apparatus according to this embodiment will be described.
図２は、本実施形態に係る導入支援装置１の処理の流れを示した図である。図２で示すように、本実施形態における処理は、検証用治療計画情報変換ステップＳ１と、線量誤差算出ステップＳ２と、設定情報算出ステップＳ３から構成されている。 FIG. 2 is a diagram showing a flow of processing of the introduction support device 1 according to the present embodiment. As shown in FIG. 2, the processing in the present embodiment includes a verification treatment plan information conversion step S1, a dose error calculation step S2, and a setting information calculation step S3.
本実施形態において、前述のステップＳ１〜Ｓ３は当該ステップＳ１〜Ｓ３を導入支援装置１に実行させるプログラムとして、導入支援装置１の記憶装置に予め記憶されている。記憶されたプログラムを導入支援装置１のメモリにロードしてＣＰＵが実行することにより、導入支援装置１がステップＳ１〜Ｓ３を実行する。 In the present embodiment, steps S1 to S3 described above are stored in advance in the storage device of the introduction support device 1 as a program that causes the introduction support device 1 to execute the steps S1 to S3. The installed support device 1 executes steps S1 to S3 by loading the stored program into the memory of the installation support device 1 and executing it by the CPU.
検証用治療計画情報変換ステップＳ１は、放射線治療計画装置２及び放射線治療装置３に読み込ませる検証用治療計画情報を、放射線治療計画装置２及び放射線治療装置３のそれぞれが読込可能な形式に変換する処理を行うステップである。 The verification treatment plan information conversion step S1 converts the verification treatment plan information to be read by the radiation treatment planning apparatus 2 and the radiation treatment apparatus 3 into a format readable by each of the radiation treatment planning apparatus 2 and the radiation treatment apparatus 3. This is a step of performing processing.
放射線治療装置及び放射線治療計画装置が扱う情報を扱う規格としてはＤＩＣＯＭ（Ｄｉｇｉｔａｌ Ｉｍａｇｉｎｇ ａｎｄ Ｃｏｍｍｕｎｉｃａｔｉｏｎｓ ｉｎ Ｍｅｄｉｃｉｎｅ）が用いられる事が通常である。しかしながら、周知の放射線治療装置及び放射線治療計画装置には厳格にＤＩＣＯＭ規格に準拠せず、独自規格を組み合わせた情報形式を採用しているものが少なくないのが現状である。本実施形態に係る導入支援装置１は、検証に用いる治療計画情報をＤＩＣＯＭ規格に準拠したフォーマットの情報として記録部１３に記録している。当該記録した検証用治療計画情報を用いて放射線治療計画装置２の検証を行うにあたって導入支援装置１がステップＳ１を実行することにより、記録部１３に記録された検証用治療計画情報を、放射線治療計画装置２及び放射線治療装置３のそれぞれが読込可能な形式に変換する。 As a standard for handling information handled by the radiation treatment apparatus and the radiation treatment planning apparatus, DICOM (Digital Imaging and Communications in Medicine) is usually used. However, in the current situation, there are many well-known radiation treatment apparatuses and radiation treatment planning apparatuses that do not strictly comply with the DICOM standard and that employ an information format that combines unique standards. The introduction support apparatus 1 according to the present embodiment records the treatment plan information used for verification in the recording unit 13 as information in a format conforming to the DICOM standard. When the introduction support apparatus 1 executes step S1 when verifying the radiation treatment planning apparatus 2 using the recorded verification treatment plan information, the verification treatment plan information recorded in the recording unit 13 is changed to the radiation treatment. Each of the planning apparatus 2 and the radiotherapy apparatus 3 converts into a readable format.
本実施形態に係る検証用治療計画情報は、放射線治療計画装置２の検証行程を実施するための情報であり、ＣＴ画像等の画像情報と、治療計画に関する情報を含んでいる。 The verification treatment plan information according to the present embodiment is information for carrying out the verification process of the radiation treatment planning apparatus 2, and includes image information such as a CT image and information regarding the treatment plan.
本実施形態におけるステップＳ１により変換した情報は放射線治療計画装置２及び放射線治療装置３に入力され、検証用放射線治療計画情報に基づいて放射線治療装置３を動作させる。変換した情報を放射線治療計画装置２及び放射線治療装置３に入力し、動作させる方法は、放射線治療計画装置２及び放射線治療装置３が提供する周知の入力手段を用いてよい。放射線治療装置３が照射した放射線については、周知の計測手段によって線量を測定し、後述するステップＳ２で使用される。 The information converted in step S1 in this embodiment is input to the radiation treatment planning apparatus 2 and the radiation treatment apparatus 3, and the radiation treatment apparatus 3 is operated based on the verification radiation treatment planning information. A well-known input means provided by the radiation treatment planning apparatus 2 and the radiation treatment apparatus 3 may be used as a method of inputting the converted information into the radiation treatment planning apparatus 2 and the radiation treatment apparatus 3 and operating them. With respect to the radiation emitted by the radiation treatment apparatus 3, the dose is measured by a well-known measuring means and used in step S2 described later.
本実施形態における放射線治療計画装置２は、前述のステップＳ１により変換した検証用治療計画情報に基づいて放射線治療装置３が照射する放射線の線量をシミュレーションにより算出する。算出した線量値は計算線量値として、後述するステップＳ２で使用される。 The radiation treatment planning apparatus 2 in the present embodiment calculates the radiation dose irradiated by the radiation treatment apparatus 3 by simulation based on the verification treatment planning information converted in step S1. The calculated dose value is used as a calculated dose value in step S2 described later.
線量誤差算出ステップＳ２は、前述の放射線治療計画装置２が算出した計算線量値と、実際に放射線治療装置３を動作させ照射した放射線の線量を示す測定線量値を比較し、誤差を算出する処理である。 The dose error calculation step S2 is a process of comparing the calculated dose value calculated by the radiation treatment planning device 2 with the measured dose value indicating the dose of the radiation actually operated by the radiation treatment device 3 to calculate an error. Is.
図３は、本実施形態において、放射線治療装置３から照射される放射線の線量を測定し、グラフ形式で示した一例の図であり、図３（ａ）は相対深部線量、図３（ｂ）は軸外線量比を示した図である。図４は、放射線治療計画装置２がモデル化した放射線治療装置のパラメータ結果をグラフ形式で示した図であり、図４（ａ）はエネルギースペクトル、図４（ｂ）は混入電子、図４（ｃ）は強度分布、図４（ｄ）は側方エネルギー分布を示した図である。本実施形態における線量誤差算出ステップＳ２は、放射線治療装置３がステップＳ１で変換した検証用治療計画情報に基づいて実際に照射した放射線を測定した測定線量値と、放射線治療計画装置２がシミュレーションにより算出した計算線量値を比較して、誤差を算出する。当該算出した誤差は、後述するステップＳ３で使用される。 FIG. 3 is a diagram showing an example in which the dose of radiation emitted from the radiation treatment apparatus 3 is measured and shown in a graph format in the present embodiment. FIG. 3A is a relative deep dose, and FIG. FIG. 4 is a diagram showing off-axis dose ratio. 4A and 4B are graphs showing the parameter results of the radiation therapy apparatus modeled by the radiation therapy planning apparatus 2, where FIG. 4A is an energy spectrum, FIG. 4B is a mixed electron, and FIG. 4C is a diagram showing the intensity distribution, and FIG. 4D is a diagram showing the lateral energy distribution. The dose error calculation step S2 in the present embodiment is performed by the radiation treatment planning apparatus 2 through a simulation, and the measured dose value obtained by measuring the radiation actually irradiated based on the verification treatment plan information converted by the radiation treatment apparatus 3 in step S1. Calculate the error by comparing the calculated dose values. The calculated error is used in step S3 described later.
前述のステップＳ１及びＳ２により、放射線治療装置３が実際に照射した放射線を測定した測定線量値と、放射線治療計画装置２がシミュレーションにより算出した計算線量値の誤差が算出されると、導入支援装置１はステップＳ３を実行し、当該誤差を最小化する放射線治療計画装置２の設定値を算出する。 When the error between the measured dose value obtained by measuring the radiation actually irradiated by the radiation treatment apparatus 3 and the calculated dose value calculated by the simulation by the radiation treatment planning apparatus 2 is calculated by the above-described steps S1 and S2, the introduction support apparatus 1 executes step S3 to calculate the set value of the radiation treatment planning apparatus 2 that minimizes the error.
以上が本実施形態における処理の流れであり、ステップＳ１〜Ｓ３を導入支援装置１が実行することにより、放射線治療計画装置２に設定する設定値を算出する。本実施形態では、予め記録された検証用治療計画情報を用いて放射線治療計画装置２の検証行程を実施することにより、検証のたびに治療計画情報を作成する行程を省略して迅速な検証を行うことができる。さらに、従来の検証行程では設定値の入力を行い、当該入力した設定値に基づいて放射線治療計画装置のシミュレーションを実施し、当該実施したシミュレーションで算出した計算線量値が許容範囲内に収まるか否かを検証し、許容範囲内に収まるまで当該行程を繰り返すことでコミッショニングを行うが、本実施形態における導入支援装置１は測定線量値と計算線量値の誤差に基づいて放射線治療計画装置２の設定値を算出するので、コミッショニングにおける上記検証行程を迅速に行うことができる。 The above is the flow of processing in the present embodiment, and the introduction support apparatus 1 executes steps S1 to S3 to calculate the set value to be set in the radiation treatment planning apparatus 2. In the present embodiment, the verification process of the radiation treatment planning apparatus 2 is performed by using the pre-recorded verification treatment plan information, so that the process of creating the treatment plan information for each verification is omitted and a quick verification is performed. It can be carried out. Furthermore, in the conventional verification process, the setting value is input, the simulation of the radiation treatment planning apparatus is performed based on the input setting value, and whether the calculated dose value calculated by the performed simulation falls within the allowable range. Whether or not the commissioning is performed by repeating the process until it is within the allowable range, the introduction support apparatus 1 in the present embodiment sets the radiation treatment planning apparatus 2 based on the error between the measured dose value and the calculated dose value. Since the value is calculated, the verification process in commissioning can be performed quickly.
本実施形態の一例の構成は以上であるが、本発明の実施の形態はこれに限られない。たとえば、本実施形態における検証用治療計画情報はＣＴ画像等の画像情報と、治療計画に関する情報を含んでいるが、放射線治療計画装置２又は放射線治療装置３に入力可能な他の情報を含んでいてもよい。また、前述のステップＳ１〜Ｓ３をそれぞれ一度ずつ実行するのではなく、例えばステップＳ２及びＳ３を複数回実行するよう構成し、誤差に基づく設定値の算出を繰り返すようにしてもよい。 Although the configuration of the example of the present embodiment is as described above, the embodiment of the present invention is not limited to this. For example, the verification treatment plan information in this embodiment includes image information such as a CT image and information about the treatment plan, but includes other information that can be input to the radiation treatment planning apparatus 2 or the radiation treatment apparatus 3. You may stay. Further, instead of executing each of the above steps S1 to S3 once, for example, the steps S2 and S3 may be configured to be executed a plurality of times, and the calculation of the set value based on the error may be repeated.
その他の具体的な構成も本実施形態の一例に限られるものではなく、本発明の趣旨を逸脱しない範囲において様々な変更が可能である。 Other specific configurations are not limited to the example of the present embodiment, and various modifications can be made without departing from the spirit of the present invention.
１ 導入支援装置
１１ 操作部
１２ 出力部
１３ 記録部
１４ 検証用治療計画情報変換部
１５ 線量誤差算出部
１６ 設定情報算出部
２ 放射線治療計画装置
３ 放射線治療装置
1 Introduction Support Device 11 Operation Unit 12 Output Unit 13 Recording Unit 14 Verification Treatment Plan Information Conversion Unit 15 Dose Error Calculation Unit 16 Setting Information Calculation Unit 2 Radiation Treatment Planning Device 3 Radiation Treatment Device
Claims (4)
前記コンピュータが、
予め前記コンピュータに記録された検証用治療計画情報を、前記放射線治療計画装置および前記放射線治療計画装置が動作させる放射線治療装置に適した形式に変換するステップと、
前記検証用治療計画情報に基づいて前記放射線治療計画装置が算出した放射線の線量である計算線量値と、前記検証用治療計画情報に基づいて前記放射線治療装置が照射した放射線を計測した線量を示す測定線量値の誤差を算出するステップと、
前記算出した誤差から、前記放射線治療計画装置に入力する設定情報を算出するステップと、
を実行することを特徴とする、放射線治療計画装置の導入支援方法。 A method of supporting introduction of a radiation treatment planning apparatus using a computer,
The computer is
Converting the verification treatment plan information recorded in the computer in advance into a format suitable for the radiation treatment planning device and the radiation treatment device operated by the radiation treatment planning device;
Shows a calculated dose value that is a dose of radiation calculated by the radiation treatment planning apparatus based on the verification treatment plan information, and a dose measured by the radiation treatment apparatus based on the verification treatment plan information. Calculating the error of the measured dose value,
Calculating setting information to be input to the radiation treatment planning device from the calculated error;
A method for supporting the introduction of a radiation treatment planning apparatus, characterized in that:
記録部に予め記録された検証用治療計画情報を、放射線治療計画装置および放射線治療装置に適した形式に変換する検証用治療計画情報変換部と、
前記検証用治療計画情報に基づいて前記放射線治療計画装置が算出した放射線の線量である計算線量値と、前記検証用治療計画情報に基づいて前記放射線治療装置が照射した放射線を計測した線量を示す測定線量値の誤差を算出する線量誤差算出部と、
前記算出した誤差から、前記放射線治療計画装置に入力する設定情報を算出する設定情報算出部と、
を備えることを特徴とする、放射線治療計画装置の導入支援装置。 An introduction support device for a radiation treatment planning device,
A verification treatment plan information conversion unit that converts the verification treatment plan information recorded in advance in the recording unit into a format suitable for the radiation treatment planning apparatus and the radiation treatment apparatus,
Shows a calculated dose value that is a dose of radiation calculated by the radiation treatment planning apparatus based on the verification treatment plan information, and a dose measured by the radiation treatment apparatus based on the verification treatment plan information. A dose error calculation unit that calculates the error of the measured dose value,
From the calculated error, a setting information calculation unit that calculates setting information to be input to the radiation treatment planning device,
An apparatus for supporting introduction of a radiation treatment planning apparatus, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018193369A JP2020058704A (en) | 2018-10-12 | 2018-10-12 | Introduction support method of radiation treatment planning device, introduction support device of radiation treatment planning device, and program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018193369A JP2020058704A (en) | 2018-10-12 | 2018-10-12 | Introduction support method of radiation treatment planning device, introduction support device of radiation treatment planning device, and program |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2020058704A true JP2020058704A (en) | 2020-04-16 |
Family
ID=70219167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018193369A Pending JP2020058704A (en) | 2018-10-12 | 2018-10-12 | Introduction support method of radiation treatment planning device, introduction support device of radiation treatment planning device, and program |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2020058704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975659A (en) * | 2020-07-27 | 2022-01-28 | 佳能医疗系统株式会社 | Radiotherapy auxiliary system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009511164A (en) * | 2005-10-14 | 2009-03-19 | トモセラピー・インコーポレーテッド | Methods and interfaces for adaptive radiation therapy |
| JP2009160309A (en) * | 2008-01-09 | 2009-07-23 | Toshiba Corp | Radiotherapy system, radiotherapy support apparatus, and radiotherapy support program |
| US20110191085A1 (en) * | 2010-02-02 | 2011-08-04 | University Health Network | System and method for commissioning of a beam model for a three dimensional radiation therapy treatment planning system |
| JP2011217902A (en) * | 2010-04-08 | 2011-11-04 | Hitachi Ltd | Device and method for planning particle beam treatment |
| JP2018000379A (en) * | 2016-06-29 | 2018-01-11 | 英伸 橘 | Dose calculation device, dose calculation method, and dose calculation program |
-
2018
- 2018-10-12 JP JP2018193369A patent/JP2020058704A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009511164A (en) * | 2005-10-14 | 2009-03-19 | トモセラピー・インコーポレーテッド | Methods and interfaces for adaptive radiation therapy |
| JP2009160309A (en) * | 2008-01-09 | 2009-07-23 | Toshiba Corp | Radiotherapy system, radiotherapy support apparatus, and radiotherapy support program |
| US20110191085A1 (en) * | 2010-02-02 | 2011-08-04 | University Health Network | System and method for commissioning of a beam model for a three dimensional radiation therapy treatment planning system |
| JP2011217902A (en) * | 2010-04-08 | 2011-11-04 | Hitachi Ltd | Device and method for planning particle beam treatment |
| JP2018000379A (en) * | 2016-06-29 | 2018-01-11 | 英伸 橘 | Dose calculation device, dose calculation method, and dose calculation program |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975659A (en) * | 2020-07-27 | 2022-01-28 | 佳能医疗系统株式会社 | Radiotherapy auxiliary system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mahadevaiah et al. | Artificial intelligence‐based clinical decision support in modern medical physics: selection, acceptance, commissioning, and quality assurance | |
| van der Merwe et al. | Accuracy requirements and uncertainties in radiotherapy: a report of the International Atomic Energy Agency | |
| Mendoza et al. | New standard evaluated neutron cross section libraries for the GEANT4 code and first verification | |
| Kozłowska et al. | FLUKA particle therapy tool for Monte Carlo independent calculation of scanned proton and carbon ion beam therapy | |
| Fix et al. | Monte Carlo source model for photon beam radiotherapy: photon source characteristics: Monte Carlo source model | |
| US20100082294A1 (en) | Commissioning and user system for radiation therapy treatment devices | |
| US9953416B2 (en) | Portal dosimetry system | |
| US11602643B2 (en) | Systems and methods for combining clinical goals with knowledge based dose prediction in treatment planning | |
| Nelson et al. | Commissioning results of an automated treatment planning verification system | |
| Henzen et al. | Monte Carlo based beam model using a photon MLC for modulated electron radiotherapy | |
| Conneely et al. | An investigation into the use of MMCTP to tune accelerator source parameters and testing its clinical application | |
| CN111001097B (en) | Radiotherapy dose evaluation system, device and storage medium | |
| Biondo et al. | Shutdown dose rate analysis with CAD geometry, Cartesian/tetrahedral mesh, and advanced variance reduction | |
| Hernandez Morales et al. | Automation of routine elements for spot‐scanning proton patient‐specific quality assurance | |
| JP2020058704A (en) | Introduction support method of radiation treatment planning device, introduction support device of radiation treatment planning device, and program | |
| CN106621071B (en) | Treatment planning system based on cloud computing and using method thereof | |
| Bhagroo et al. | Secondary monitor unit calculations for VMAT using parallelized Monte Carlo simulations | |
| Hofmaier et al. | Variance‐based sensitivity analysis for uncertainties in proton therapy: A framework to assess the effect of simultaneous uncertainties in range, positioning, and RBE model predictions on RBE‐weighted dose distributions | |
| Yuan et al. | Development of a Monte Carlo model for treatment planning dose verification of the Leksell Gamma Knife Perfexion radiosurgery system | |
| Yang et al. | Implementation of incident learning in the safety and quality management of radiotherapy: the primary experience in a new established program with advanced technology | |
| Villarreal‐Barajas | COMP report: CPQR technical quality control guidelines for treatment planning systems | |
| Zheng et al. | Minimizing treatment planning errors in proton therapy using failure mode and effects analysis | |
| Hodges et al. | Characterization of the radiation environment at the UNLV accelerator facility during operation of the Varian M6 linac | |
| Noh et al. | Assessment of log‐based fingerprinting system of Mobius3D with Elekta linear accelerators | |
| Mihaylov et al. | Quantification of the impact of MLC modeling and tissue heterogeneities on dynamic IMRT dose calculations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20181024 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20190612 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190625 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20190801 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20190801 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190822 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200204 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20200804 |