JP2021507225A - シングルショットx線位相コントラスト及び暗視野イメージング - Google Patents
シングルショットx線位相コントラスト及び暗視野イメージング Download PDFInfo
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- 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
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
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Abstract
Description
ここで、Tj、Dj、及びφjは、透過率、暗視野信号、及び物体によって引き起こされる位相シフトの所望の値であり、mijは、この画像ピクセルに関連する異なる測定値である。量Aij、Vij、及びαijは、ブランクスキャン強度、可視性、及びフリンジ位相である。σijは測定値mijの標準偏差である。
Claims (16)
- X線検出器装置用のコンポーネントであって、複数の異なる領域にテセレーションされた層を有し、前記領域は、個々の位相の個々の周期構造を有し、2つの隣接する前記領域は、それぞれ異なる位相の周期構造を有する、X線検出器装置用のコンポーネント。
- 任意の2つの隣接する前記領域が、それぞれ異なる位相の周期構造を有する、請求項1に記載のコンポーネント。
- 少なくとも1つの所与の領域が、それぞれ異なる位相を有する複数の領域によって少なくとも部分的に囲まれており、前記それぞれ異なる位相の各々が、前記所与の領域の位相とは異なる、請求項1又は2に記載のコンポーネント。
- 前記領域の少なくとも1つが単一のピクセル領域である、請求項1乃至3のいずれか1項に記載のコンポーネント。
- 前記コンポーネントが、放射線感受性であり、特にX線感受性である、請求項1乃至4のいずれか1項に記載のコンポーネント。
- 前記層がシンチレーション層、半導体層又はフォトダイオード層である、請求項5に記載のコンポーネント。
- 前記周期構造が、放射線感受性要素と放射線非感受性要素の交互パターンとして配置されている、請求項1乃至6のいずれか1項に記載のコンポーネント。
- 請求項1乃至7のいずれか1項に記載のコンポーネントを有する、X線検出器装置。
- 請求項8のX線検出器装置又は請求項1乃至7のいずれか1項に記載のコンポーネントを有するX線イメージング装置。
- 暗視野又は位相コントラスト又は透過イメージングのための信号処理方法であって、
X線イメージング装置のイメージング経路内にあるX線検出器装置から読み取り値を受信するステップであって、前記X線検出器装置は、少なくとも1つのインタフェースを有する複数の異なる領域にテセレーションされた層を有するコンポーネントを具備する、ステップと、
読み取り値を処理して、暗視野画像信号、位相コントラスト画像信号又は透過画像信号を生成するステップであって、前記処理は正則化を含む、ステップと、
を有する方法。 - 請求項10に記載の方法を実行するように構成された処理ユニット。
- 請求項11に記載の処理ユニットを有する又は前記処理ユニットに通信可能に結合されたイメージング装置。
- 少なくとも1つの処理ユニットによって実行されるとき、前記処理ユニットに、請求項10に記載の方法を実行させるコンピュータプログラム。
- 請求項13に記載のコンピュータプログラムを記憶したコンピュータ可読媒体。
- 少なくとも1つの処理ユニットによって実行されるとき、加算加工装置に、請求項1乃至7のいずれか1項に記載のコンポーネントの周期構造の少なくとも1つを形成させるコンピュータプログラム。
- 請求項15に記載のコンピュータプログラムを記憶したコンピュータ可読記憶媒体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17207719.0A EP3498171A1 (en) | 2017-12-15 | 2017-12-15 | Single shot x-ray phase-contrast and dark field imaging |
EP17207719.0 | 2017-12-15 | ||
PCT/EP2018/084253 WO2019115483A1 (en) | 2017-12-15 | 2018-12-11 | Single shot x-ray phase-contrast and dark field imaging |
Publications (1)
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JP2021507225A true JP2021507225A (ja) | 2021-02-22 |
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JP2020532812A Pending JP2021507225A (ja) | 2017-12-15 | 2018-12-11 | シングルショットx線位相コントラスト及び暗視野イメージング |
Country Status (5)
Country | Link |
---|---|
US (1) | US11154264B2 (ja) |
EP (2) | EP3498171A1 (ja) |
JP (1) | JP2021507225A (ja) |
CN (1) | CN111615360A (ja) |
WO (1) | WO2019115483A1 (ja) |
Families Citing this family (2)
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CN111189859A (zh) * | 2020-01-10 | 2020-05-22 | 中国科学院上海光学精密机械研究所 | 基于曲率传感技术的x射线单次曝光成像装置及方法 |
US11701077B2 (en) * | 2021-02-25 | 2023-07-18 | Uchicago Argonne, Llc | Coded-mask-based X-ray phase-contrast and dark-field imaging |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011512187A (ja) * | 2008-02-14 | 2011-04-21 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 位相コントラストイメージング用のx線検出器 |
JP2015118081A (ja) * | 2013-11-12 | 2015-06-25 | キヤノン株式会社 | 放射線検出システムおよび放射線撮像装置 |
JP2017506925A (ja) * | 2013-12-30 | 2017-03-16 | ケアストリーム ヘルス インク | 微分位相コントラスト撮像からの位相回復 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10206020A1 (de) | 2002-02-14 | 2003-08-28 | Zeiss Carl Jena Gmbh | Optisches Nahfeldmikroskop |
US9113839B2 (en) * | 2003-04-25 | 2015-08-25 | Rapiscon Systems, Inc. | X-ray inspection system and method |
CN101750621A (zh) | 2008-12-08 | 2010-06-23 | 皇家飞利浦电子股份有限公司 | 对来自像素化探测器的测量的评估 |
JP5586986B2 (ja) * | 2010-02-23 | 2014-09-10 | キヤノン株式会社 | X線撮像装置 |
CA2802507A1 (en) | 2010-06-13 | 2011-12-22 | Angiometrix Corporation | Diagnostic kit and method for measuring balloon dimension in vivo |
BR112013004824A2 (pt) * | 2010-09-03 | 2016-05-31 | Koninkl Philips Electronics Nv | método para a recuperação de fase regularizada na geração de imagens de contraste de fase, aparelho para a recuperação de fase regularizada na geração de imagens de contraste de fase, utilização de um aparelho, meio legível em computador e elemento de programa para a recuperação de fase regularizada na geração de imagens de contraste de fase |
US9861330B2 (en) * | 2010-10-19 | 2018-01-09 | Koninklijke Philips N.V. | Differential phase-contrast imaging |
WO2012052881A1 (en) * | 2010-10-19 | 2012-04-26 | Koninklijke Philips Electronics N.V. | Differential phase-contrast imaging |
US20130137963A1 (en) | 2011-11-29 | 2013-05-30 | Eric S. Olson | System and method for automatically initializing or initiating a motion compensation algorithm |
CN103356223B (zh) * | 2012-04-01 | 2015-07-08 | 中国科学院高能物理研究所 | 用于人体医学检测的 ct 成像系统及方法 |
DE102012224258A1 (de) | 2012-12-21 | 2014-06-26 | Siemens Aktiengesellschaft | Röntgenaufnahmesystem zur differentiellen Phasenkontrast-Bildgebung eines Untersuchungsobjekts mit Phase-Stepping sowie angiographisches Untersuchungsverfahren |
WO2014124447A1 (en) | 2013-02-11 | 2014-08-14 | Angiometrix Corporation | Systems for detecting and tracking of objects and co-registration |
US9719947B2 (en) * | 2013-10-31 | 2017-08-01 | Sigray, Inc. | X-ray interferometric imaging system |
EP3234649A1 (en) | 2014-12-17 | 2017-10-25 | Koninklijke Philips N.V. | Detector and method for detecting ionizing radiation |
US10902648B2 (en) | 2015-06-26 | 2021-01-26 | Koninklijke Philips N.V. | Robust reconstruction for dark-field and phase contrast CT |
US10559393B2 (en) * | 2015-07-21 | 2020-02-11 | Koninklijke Philips N.V. | X-ray detector for phase contrast and/or dark-field imaging |
WO2017207734A1 (en) * | 2016-06-02 | 2017-12-07 | Koninklijke Philips N.V. | X-ray imaging apparatus for compact (quasi-)isotropic multi source x-ray imaging |
-
2017
- 2017-12-15 EP EP17207719.0A patent/EP3498171A1/en not_active Withdrawn
-
2018
- 2018-12-11 US US16/772,485 patent/US11154264B2/en active Active
- 2018-12-11 CN CN201880086668.9A patent/CN111615360A/zh active Pending
- 2018-12-11 WO PCT/EP2018/084253 patent/WO2019115483A1/en unknown
- 2018-12-11 JP JP2020532812A patent/JP2021507225A/ja active Pending
- 2018-12-11 EP EP18812187.5A patent/EP3723612B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011512187A (ja) * | 2008-02-14 | 2011-04-21 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 位相コントラストイメージング用のx線検出器 |
JP2015118081A (ja) * | 2013-11-12 | 2015-06-25 | キヤノン株式会社 | 放射線検出システムおよび放射線撮像装置 |
JP2017506925A (ja) * | 2013-12-30 | 2017-03-16 | ケアストリーム ヘルス インク | 微分位相コントラスト撮像からの位相回復 |
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CN111615360A (zh) | 2020-09-01 |
US11154264B2 (en) | 2021-10-26 |
EP3723612A1 (en) | 2020-10-21 |
RU2020123077A3 (ja) | 2022-01-17 |
EP3723612B1 (en) | 2021-06-16 |
RU2020123077A (ru) | 2022-01-17 |
EP3498171A1 (en) | 2019-06-19 |
WO2019115483A1 (en) | 2019-06-20 |
US20200397393A1 (en) | 2020-12-24 |
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