JP2008524554A - 核医学用検出器 - Google Patents
核医学用検出器 Download PDFInfo
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- JP2008524554A JP2008524554A JP2007536301A JP2007536301A JP2008524554A JP 2008524554 A JP2008524554 A JP 2008524554A JP 2007536301 A JP2007536301 A JP 2007536301A JP 2007536301 A JP2007536301 A JP 2007536301A JP 2008524554 A JP2008524554 A JP 2008524554A
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- slats
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- 238000009206 nuclear medicine Methods 0.000 title claims abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 72
- 238000003384 imaging method Methods 0.000 claims abstract description 48
- 238000002603 single-photon emission computed tomography Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 17
- 238000001514 detection method Methods 0.000 description 16
- 239000013078 crystal Substances 0.000 description 6
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- QWUZMTJBRUASOW-UHFFFAOYSA-N cadmium tellanylidenezinc Chemical compound [Zn].[Cd].[Te] QWUZMTJBRUASOW-UHFFFAOYSA-N 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005316 response function Methods 0.000 description 3
- PBOOGLULPGUHFZ-UHFFFAOYSA-N [ethoxy(phenyl)phosphoryl]sulfanylmethylbenzene Chemical compound C=1C=CC=CC=1P(=O)(OCC)SCC1=CC=CC=C1 PBOOGLULPGUHFZ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 235000009518 sodium iodide Nutrition 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical compound ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 229940121896 radiopharmaceutical Drugs 0.000 description 1
- 239000012217 radiopharmaceutical Substances 0.000 description 1
- 230000002799 radiopharmaceutical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1648—Ancillary equipment for scintillation cameras, e.g. reference markers, devices for removing motion artifacts, calibration devices
-
- 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
- A61B6/4291—Arrangements for detecting radiation specially adapted for radiation diagnosis the detector being combined with a grid or grating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/1615—Applications in the field of nuclear medicine, e.g. in vivo counting using both transmission and emission sources simultaneously
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1644—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using an array of optically separate scintillation elements permitting direct location of scintillations
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
- G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation
-
- 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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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of Radiation (AREA)
- Nuclear Medicine (AREA)
Abstract
Description
m=f'/(f−z)、但しf'=f+L
である。
孔サイズ: スリット:Dx=RL/z',スラット距離:Dy=RLf'/z'f,Dy>Dx
画素: x方向:px=Dxz'/(2z),y方向:py=Dy+t,py>px
x方向の拡大: mx=L/z (強力な縮小)
y方向の拡大: my=f'/(f'−z')=f'/(f−z),f'=f+L (拡大)
効率: E=acone(DxDy 2/(4πLz))(fy/(fy−z))・(1/py) fy=f(焦点長)
aconeは開口角による制限された効率に対する補正係数である。
解像度: Rx=Dx(z'/L),Ry=Dy(z'/L)(fy/fy')
Claims (20)
- 放射線検出器と、
前記検出器の放射線受け面に隣接するコリメータであって、前記コリメータが、
共通の焦点を持つ複数の離間したスラット、及び
細長いスリットを規定する、前記スラットに隣接する本体であって、前記スリットは、放射線が前記スリットを通って前記スラットの間を前記検出器まで通過するように構成され、前記本体が前記放射線に対して不透明である前記本体、
を有する前記コリメータと、
を有する放射線イメージング装置。 - 線放射線源、
を更に含む、請求項1に記載のイメージング装置。 - 前記スラットの前記共通の焦点が、前記線線源と同一線上にある、請求項2に記載のイメージング装置。
- 前記スラットが、前記検出器に隣接する前記スラットの末端において互いに平行に構成される、請求項1に記載のイメージング装置。
- 前記スラットが前記検出器面から延在する、請求項1に記載のイメージング装置。
- 前記スリットが前記検出器面の反対側で前記スラットの縁に隣接する、請求項4に記載のイメージング装置。
- 前記スリットが板において規定される、請求項6に記載のイメージング装置。
- 前記板が前記スラットの末端と接続される、請求項7に記載のイメージング装置。
- 前記検出器上の対象面の投影が、少なくとも1つの次元において前記対象面より小さい、請求項1に記載のイメージング装置。
- 前記検出器が画素化されている、請求項1に記載のイメージング装置。
- 前記スリットが幅及び長さを持ち、前記スリットの前記幅が前記スリットの前記長さより小さく、前記検出器が、前記スリットの前記幅の半分より大きいか又は等しい、前記スリットの前記幅と平行な幅を持つ画素を含む、請求項10に記載のイメージング装置。
- 前記スラットが、前記画素の長さに等しいピッチを持つ、請求項10に記載のイメージング装置。
- 前記ピッチが約1mmから約3mmであり、前記スラットが約0.05mmから約0.5mmの厚さを持つ、請求項12に記載のイメージング装置。
- 前記板が複数のスリットを含む、請求項1に記載のイメージング装置。
- 前記検出器が複数の画素を含み、前記スリットの間の間隔が検出器幅より大きい、請求項14に記載のイメージング装置。
- 前記スラットが、収束する面において平行である、請求項1に記載のイメージング装置。
- 請求項1に記載の放射線イメージング装置を少なくとも1つ含む核医学イメージング装置。
- 前記放射線イメージング装置が、単光子放出コンピュータ断層撮影(SPECT)イメージング装置である、請求項17に記載の核医学イメージング装置。
- 線源からの放射線を検出器に向けるステップと、
1つ以上のスリット及び複数の離間したスラットを前記放射線源と前記検出器との間に配置するステップであって、前記スラットが共通の焦点を持ち、これにより放射線が前記スリットを通って前記スラット間を前記検出器まで通過する、当該配置するステップと、
を有するイメージング方法。 - 検出された放射線から3次元画像を再構成するステップ、
を更に含む、請求項19に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61908004P | 2004-10-15 | 2004-10-15 | |
US60/619,080 | 2004-10-15 | ||
US63674504P | 2004-12-16 | 2004-12-16 | |
US60/636,745 | 2004-12-16 | ||
PCT/IB2005/053231 WO2006040707A1 (en) | 2004-10-15 | 2005-09-30 | Detector for nuclear medicine |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008524554A true JP2008524554A (ja) | 2008-07-10 |
JP2008524554A5 JP2008524554A5 (ja) | 2008-11-13 |
JP5283382B2 JP5283382B2 (ja) | 2013-09-04 |
Family
ID=35355907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007536301A Active JP5283382B2 (ja) | 2004-10-15 | 2005-09-30 | 核医学用検出器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7683333B2 (ja) |
EP (1) | EP1802998B1 (ja) |
JP (1) | JP5283382B2 (ja) |
CN (1) | CN101040193B (ja) |
WO (1) | WO2006040707A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8242453B2 (en) | 2004-10-15 | 2012-08-14 | Koninklijke Philips Electronics N.V. | Imaging system for nuclear medicine |
US8552389B2 (en) | 2010-10-29 | 2013-10-08 | General Electric Company | System and method for collimation in diagnostic imaging systems |
DE102010062133B4 (de) * | 2010-11-29 | 2017-02-23 | Siemens Healthcare Gmbh | Kollimator für einen Strahlendetektor und Verfahren zur Herstellung eines solchen Kollimators sowie Verfahren zur Herstellung eines Kollimatoren aufweisenden Strahlendetektors |
BR112014012015A2 (pt) * | 2011-11-22 | 2017-05-30 | Koninklijke Philips Nv | sistema e método de geração de imagens nucleares de corpo inteiro |
US20130345550A1 (en) * | 2012-06-25 | 2013-12-26 | Tzachi Rafaeli | Systems and methods for localizing an opaque medical device with nuclear medicine imaging |
NL2012546B1 (nl) * | 2014-04-02 | 2016-02-15 | Milabs Bv | Scannen van een menselijk lichaamsdeel met door het lichaamsdeel uitgezonden hoogenergetische straling. |
US11350892B2 (en) * | 2016-12-16 | 2022-06-07 | General Electric Company | Collimator structure for an imaging system |
JP6822859B2 (ja) * | 2017-01-24 | 2021-01-27 | キヤノンメディカルシステムズ株式会社 | 検出装置及び検出方法 |
US11723609B2 (en) * | 2020-08-28 | 2023-08-15 | Argospect Technologies Inc. | Spread field imaging collimators for radiation-based imaging and methods of using the same |
EP4330730A1 (en) * | 2022-07-15 | 2024-03-06 | Shanghai United Imaging Healthcare Co., Ltd. | Detector module |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4066901A (en) * | 1976-09-13 | 1978-01-03 | Varian Associates, Inc. | Tomographic scanning apparatus with improved collimator structure |
JPS5443488A (en) * | 1977-08-18 | 1979-04-06 | Philips Nv | Xxray computer tomograph measuring device |
JPS6085383A (ja) * | 1983-10-15 | 1985-05-14 | Mitsubishi Electric Corp | 放射線イメ−ジング装置 |
JPH05302979A (ja) * | 1991-06-10 | 1993-11-16 | Picker Internatl Inc | 同時透過・放出型集束断層撮影法 |
JP2001503508A (ja) * | 1996-05-10 | 2001-03-13 | アカデミッシュ・ジーケンヒュイス・ユトレヒト | 断層撮影像作成装置 |
EP1120086A1 (en) * | 1998-09-17 | 2001-08-01 | Quanta Vision, Inc. | Reduced-angle mammography device and variants |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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NL8701122A (nl) * | 1987-05-12 | 1988-12-01 | Optische Ind De Oude Delft Nv | Inrichting voor spleetradiografie met beeldharmonisatie. |
JP2957623B2 (ja) | 1990-01-31 | 1999-10-06 | 株式会社東芝 | Spect装置用のアーチファクト乃至感度補正装置 |
JPH04297899A (ja) | 1991-03-27 | 1992-10-21 | Toshiba Corp | コリメータ製造方法及び該製造方法で得るコリメータ |
JP2003520348A (ja) | 2000-01-14 | 2003-07-02 | バン・ドウルメン,アドリアヌス・エイ | 単光子放出型コンピュータ撮影法による撮像方法 |
US6583420B1 (en) * | 2000-06-07 | 2003-06-24 | Robert S. Nelson | Device and system for improved imaging in nuclear medicine and mammography |
US6603123B1 (en) * | 2000-11-08 | 2003-08-05 | Koninklijke Philips Electronics, N.V. | Correction for depth-dependent sensitivity in rotating slat-collimated gamma camera |
US20040044282A1 (en) * | 2002-08-28 | 2004-03-04 | Mixon Lonnie Mark | Medical imaging systems and methods |
-
2005
- 2005-09-30 EP EP05786725.1A patent/EP1802998B1/en active Active
- 2005-09-30 WO PCT/IB2005/053231 patent/WO2006040707A1/en active Application Filing
- 2005-09-30 CN CN200580035245.7A patent/CN101040193B/zh active Active
- 2005-09-30 US US11/577,093 patent/US7683333B2/en active Active
- 2005-09-30 JP JP2007536301A patent/JP5283382B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4066901A (en) * | 1976-09-13 | 1978-01-03 | Varian Associates, Inc. | Tomographic scanning apparatus with improved collimator structure |
JPS5443488A (en) * | 1977-08-18 | 1979-04-06 | Philips Nv | Xxray computer tomograph measuring device |
JPS6085383A (ja) * | 1983-10-15 | 1985-05-14 | Mitsubishi Electric Corp | 放射線イメ−ジング装置 |
JPH05302979A (ja) * | 1991-06-10 | 1993-11-16 | Picker Internatl Inc | 同時透過・放出型集束断層撮影法 |
JP2001503508A (ja) * | 1996-05-10 | 2001-03-13 | アカデミッシュ・ジーケンヒュイス・ユトレヒト | 断層撮影像作成装置 |
EP1120086A1 (en) * | 1998-09-17 | 2001-08-01 | Quanta Vision, Inc. | Reduced-angle mammography device and variants |
Also Published As
Publication number | Publication date |
---|---|
WO2006040707A1 (en) | 2006-04-20 |
CN101040193A (zh) | 2007-09-19 |
CN101040193B (zh) | 2010-06-16 |
JP5283382B2 (ja) | 2013-09-04 |
EP1802998A1 (en) | 2007-07-04 |
EP1802998B1 (en) | 2014-09-17 |
US7683333B2 (en) | 2010-03-23 |
US20090022279A1 (en) | 2009-01-22 |
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