JP5360914B2 - 検出器シフト型放射線治療・pet複合装置 - Google Patents
検出器シフト型放射線治療・pet複合装置 Download PDFInfo
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- JP5360914B2 JP5360914B2 JP2010522574A JP2010522574A JP5360914B2 JP 5360914 B2 JP5360914 B2 JP 5360914B2 JP 2010522574 A JP2010522574 A JP 2010522574A JP 2010522574 A JP2010522574 A JP 2010522574A JP 5360914 B2 JP5360914 B2 JP 5360914B2
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 93
- 238000005259 measurement Methods 0.000 claims abstract description 48
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- 238000000034 method Methods 0.000 claims description 30
- 230000033001 locomotion Effects 0.000 claims description 25
- 230000000241 respiratory effect Effects 0.000 claims description 17
- 238000012879 PET imaging Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 4
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- 201000011510 cancer Diseases 0.000 abstract description 5
- 238000002600 positron emission tomography Methods 0.000 description 75
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
- G01T1/2914—Measurement of spatial distribution of radiation
- G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4266—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a plurality of detector units
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
- A61N2005/1052—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using positron emission tomography [PET] single photon emission computer tomography [SPECT] imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
- A61N2005/1087—Ions; Protons
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- Heart & Thoracic Surgery (AREA)
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Description
(2)ビーム照射によって生成される核種の半減期は数十秒から20分と非常に短い点。
Claims (11)
- 複数の検出器リングが体軸方向に互いに対向するように配列されその貫通内部で放射線計測を行って前記検出器リング間の開放領域をPET画像化する開放型PET装置と、
互いに隣接する前記検出器リング間の空間から放射線照射し該空間の前記内部に照射野を形成可能な放射線照射装置とを備え、
前記空間を形成する二つの空間形成検出器リングの両方が可動検出器リングで、該可動検出器リングは、放射線照射中は照射野から離れた照射による損傷を避ける待避位置にあり、照射後に待避位置より照射野側で移動しながら放射線計測してPET画像化することを特徴とする検出器シフト型放射線治療・PET複合装置。 - 前記可動検出器リングの前記待避位置は、放射線照射中に照射による損傷を避ける照射野寄りの限界位置である安全限界位置から所定距離安全側にあり、放射線照射停止時間から逆算して照射中に待避位置から照射野方向に移動開始し、照射終了後に安全限界位置を超えることを特徴とする請求項1に記載の検出器シフト型放射線治療・PET複合装置。
- 照射野を多層域に分割し、層間を順次移動し層毎にスポットビームを走査照射する照射方法において、照射の層移動を追跡するようにして検出器リングを移動させながら前記PET画像化のための放射線計測を行うことを特徴とする請求項1又は2に記載の検出器シフト型放射線治療・PET複合装置。
- 一連の照射が終了した後に、照射から一定の時間差を置いて、照射の層移動を追跡するようにして検出器リングを移動させながら前記PET画像化のための放射線計測を行うことを特徴とする請求項3に記載の検出器シフト型放射線治療・PET複合装置。
- 放射線照射が層移動する間に一旦照射を止め前記PET画像化のための放射線計測を行うことを特徴とする請求項3又は4に記載の検出器シフト型放射線治療・PET複合装置。
- 前記可動検出器リングの移動方向が体軸方向であることを特徴とする請求項1乃至5のいずれかに記載の検出器シフト型放射線治療・PET複合装置。
- 前記可動検出器リングの移動方向が、体軸方向に垂直な面に沿う方向であることを特徴とする請求項1乃至5のいずれかに記載の検出器シフト型放射線治療・PET複合装置。
- 前記可動検出器リングの移動方向が放射線の照射軸方向であることを特徴とする請求項7に記載の検出器シフト型放射線治療・PET複合装置。
- 前記放射線を呼吸サイクルと同期して照射する呼吸同期照射において、放射線照射の合間に合わせて前記PET画像化のための放射線計測を行うことを特徴とする請求項1乃至8のいずれかに記載の検出器シフト型放射線治療・PET複合装置。
- 一呼吸サイクル内の安定域で前記放射線照射を行い、放射線照射を行えない不安定域で前記PET画像化のための放射線計測を行うことを特徴とする請求項9に記載の検出器シフト型放射線治療・PET複合装置。
- 放射線の照射位置を設定する照射位置設定手段と、前記放射線の照射位置に照射ビームを照射させる放射線照射手段と、可動検出器リング位置を設定する位置設定手段と、可動検出器リングを位置設定手段が設定した設定位置に移動させる移動手段と、を備え、
放射線照射手段の照射タイミング情報を基に位置設定手段が可動検出器リングの位置を設定することを特徴とする請求項1及至10のいずれかに記載の検出器シフト型放射線治療・PET複合装置。
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PCT/JP2008/063861 WO2010013345A1 (ja) | 2008-08-01 | 2008-08-01 | 検出器シフト型放射線治療・pet複合装置 |
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US (1) | US8581196B2 (ja) |
JP (1) | JP5360914B2 (ja) |
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ITRM20110543A1 (it) * | 2011-10-13 | 2013-04-14 | Consiglio Naz Delle Ricerche Cnr | Dispositivo diagnostico per indagini morfo-funzionali |
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US10500416B2 (en) | 2015-06-10 | 2019-12-10 | Reflexion Medical, Inc. | High bandwidth binary multi-leaf collimator design |
CN109152928B (zh) | 2016-03-09 | 2021-05-28 | 反射医疗公司 | 用于计算辐射治疗的注量图的方法和*** |
WO2018093849A1 (en) | 2016-11-15 | 2018-05-24 | Reflexion Medical, Inc. | Methods for radiation delivery in emission-guided radiotherapy |
EP3988017A1 (en) | 2016-11-15 | 2022-04-27 | RefleXion Medical, Inc. | System for emission-guided high-energy photon delivery |
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- 2008-08-01 US US12/996,443 patent/US8581196B2/en not_active Expired - Fee Related
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US8581196B2 (en) | 2013-11-12 |
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US20110084211A1 (en) | 2011-04-14 |
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