JP2011504393A - Kエッジ造影を実行する医療用x線検査装置 - Google Patents
Kエッジ造影を実行する医療用x線検査装置 Download PDFInfo
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- JP2011504393A JP2011504393A JP2010534572A JP2010534572A JP2011504393A JP 2011504393 A JP2011504393 A JP 2011504393A JP 2010534572 A JP2010534572 A JP 2010534572A JP 2010534572 A JP2010534572 A JP 2010534572A JP 2011504393 A JP2011504393 A JP 2011504393A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 26
- 238000007689 inspection Methods 0.000 title claims description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 52
- 238000000862 absorption spectrum Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims description 7
- 230000001747 exhibiting effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 12
- 230000005855 radiation Effects 0.000 description 14
- 238000002591 computed tomography Methods 0.000 description 10
- 239000002872 contrast media Substances 0.000 description 7
- 229910052688 Gadolinium Inorganic materials 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 3
- 210000004351 coronary vessel Anatomy 0.000 description 3
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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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
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4035—Arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
- A61B6/4042—K-edge filters
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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
- A61B6/48—Diagnostic techniques
- A61B6/482—Diagnostic techniques involving multiple energy imaging
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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
- A61B6/48—Diagnostic techniques
- A61B6/481—Diagnostic techniques involving the use of contrast agents
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Abstract
Description
−関心対象の解剖学的背景を表すデータ要素を含む従来のX線吸収画像、及び
−前記関心対象内のKエッジ吸収を示す物質の局所密度の定量的情報を表すデータ要素を含むKエッジ吸収画像、
として画像化するように構成されたイメージングユニットを有する、Kエッジ造影を実行する医療用X線検査装置に関する。
Claims (6)
- X線吸収スペクトルをスペクトル分解して前記X線吸収スペクトルを、
−関心対象の解剖学的背景を表すデータ要素を含む従来のX線吸収画像、及び
−前記関心対象内のKエッジ吸収を示す物質の局所密度の定量的情報を表すデータ要素を含むKエッジ吸収画像、
として画像化するイメージングユニットを有する、Kエッジ造影を実行する医療用X線検査装置において、
前記イメージングユニットが、前記Kエッジ吸収画像の空間分解能を減少させる空間分解能リデューサを有することを特徴とする、医療用X線検査装置。 - 前記空間分解能リデューサが、前記Kエッジ吸収画像において相互接続されている複数の個別のデータ要素のクラスタを規定するクラスタ規定ユニットを有し、前記個別のデータ要素により表される定量的情報を前記データ要素のクラスタにより表される定量的情報で置き換える置換ユニットを有することを特徴とする、請求項1に記載の医療用X線検査装置。
- 前記置換ユニットが、前記個別のデータ要素により表される定量的情報を前記データ要素のクラスタにより表される定量的情報で置き換えるフィルタを有することを特徴とする、請求項2に記載の医療用X線検査装置。
- 前記空間分解能リデューサが、前記個別のデータ要素のクラスタにより表される定量的情報を単一の定量的測定値に結合する置換結合器ユニットを有することを特徴とする、請求項2又は3に記載の医療用X線検査装置。
- 前記クラスタ規定ユニットが、モデル制約に基づいて、前記Kエッジ吸収画像において相互接続されている複数の個別のデータ要素のクラスタを規定することを特徴とする、請求項2、3又は4に記載の医療用X線検査装置。
- 前記医療用X線検査装置がCTスキャナである、請求項1ないし5のいずれか一項に記載の医療用X線検査装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07121406.8 | 2007-11-23 | ||
EP07121406 | 2007-11-23 | ||
PCT/IB2008/054775 WO2009066214A1 (en) | 2007-11-23 | 2008-11-14 | Medical x-ray examination apparatus for performing k-edge imaging |
Publications (2)
Publication Number | Publication Date |
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JP2011504393A true JP2011504393A (ja) | 2011-02-10 |
JP5587785B2 JP5587785B2 (ja) | 2014-09-10 |
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Application Number | Title | Priority Date | Filing Date |
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JP2010534572A Active JP5587785B2 (ja) | 2007-11-23 | 2008-11-14 | Kエッジ造影を実行する医療用x線検査装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7894569B2 (ja) |
EP (1) | EP2211722B1 (ja) |
JP (1) | JP5587785B2 (ja) |
CN (1) | CN101868183B (ja) |
AT (1) | ATE521285T1 (ja) |
WO (1) | WO2009066214A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010143100A1 (en) * | 2009-06-10 | 2010-12-16 | Koninklijke Philips Electronics N.V. | Visualization apparatus for visualizing an image data set |
EP2377467A1 (en) | 2010-04-08 | 2011-10-19 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | System and method for determining the composition of an object |
US9101272B2 (en) * | 2011-03-24 | 2015-08-11 | Jefferson Radiology, P.C. | Fixed anterior gantry CT shielding |
JP6305692B2 (ja) * | 2013-05-28 | 2018-04-04 | キヤノンメディカルシステムズ株式会社 | X線診断装置 |
WO2015195501A1 (en) * | 2014-06-17 | 2015-12-23 | University Of Massachusetts Medical School | Ct scans using gadolinium-based contrast agent |
EP3477289A1 (en) * | 2017-10-30 | 2019-05-01 | FEI Company | X-ray spectroscopy in a charged particle microscope |
CN116577358B (zh) * | 2023-05-18 | 2024-01-23 | 杭州宇称电子技术有限公司 | 基于x射线k-吸收边的书画文物颜料成像方法及其应用 |
Citations (4)
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JPH04207675A (ja) * | 1990-11-30 | 1992-07-29 | Hitachi Ltd | エネルギー差分像撮影装置 |
JPH0622218A (ja) * | 1992-06-30 | 1994-01-28 | Fuji Photo Film Co Ltd | エネルギーサブトラクション画像生成方法 |
WO2007010448A2 (en) * | 2005-07-22 | 2007-01-25 | Koninklijke Philips Electronics, N.V. | X-ray detector imaging with polychromatic spectra |
WO2007034356A2 (en) * | 2005-09-22 | 2007-03-29 | Philips Intellectual Property & Standards Gmbh | Ct-imaging system |
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US4686695A (en) * | 1979-02-05 | 1987-08-11 | Board Of Trustees Of The Leland Stanford Junior University | Scanned x-ray selective imaging system |
US6512807B1 (en) * | 2001-11-21 | 2003-01-28 | Koninklijke Philips Electronics, N.V. | Low signal correction for perfusion measurements |
US6990222B2 (en) * | 2001-11-21 | 2006-01-24 | Arnold Ben A | Calibration of tissue densities in computerized tomography |
US7006677B2 (en) * | 2002-04-15 | 2006-02-28 | General Electric Company | Semi-automatic segmentation algorithm for pet oncology images |
US6731782B2 (en) * | 2002-10-02 | 2004-05-04 | Virtualscopics, Llc | Method and system for automatic identification and quantification of abnormal anatomical structures in medical images |
US7583779B2 (en) * | 2004-11-24 | 2009-09-01 | General Electric Company | System and method for acquisition and reconstruction of contrast-enhanced, artifact-reduced CT images |
US7539337B2 (en) * | 2005-07-18 | 2009-05-26 | Analogic Corporation | Method of and system for splitting compound objects in multi-energy computed tomography images |
US20070047786A1 (en) * | 2005-08-25 | 2007-03-01 | Lenovo (Singapore) Pte. Ltd. | System and method for creating robust training data from MRI images |
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2008
- 2008-11-14 CN CN2008801171471A patent/CN101868183B/zh active Active
- 2008-11-14 JP JP2010534572A patent/JP5587785B2/ja active Active
- 2008-11-14 EP EP08852816A patent/EP2211722B1/en active Active
- 2008-11-14 AT AT08852816T patent/ATE521285T1/de not_active IP Right Cessation
- 2008-11-14 WO PCT/IB2008/054775 patent/WO2009066214A1/en active Application Filing
- 2008-11-14 US US12/743,867 patent/US7894569B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04207675A (ja) * | 1990-11-30 | 1992-07-29 | Hitachi Ltd | エネルギー差分像撮影装置 |
JPH0622218A (ja) * | 1992-06-30 | 1994-01-28 | Fuji Photo Film Co Ltd | エネルギーサブトラクション画像生成方法 |
WO2007010448A2 (en) * | 2005-07-22 | 2007-01-25 | Koninklijke Philips Electronics, N.V. | X-ray detector imaging with polychromatic spectra |
JP2009502227A (ja) * | 2005-07-22 | 2009-01-29 | 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 | 多色スペクトルによるx線検出器イメージング |
WO2007034356A2 (en) * | 2005-09-22 | 2007-03-29 | Philips Intellectual Property & Standards Gmbh | Ct-imaging system |
JP2009508616A (ja) * | 2005-09-22 | 2009-03-05 | 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 | Ct画像形成システム |
Also Published As
Publication number | Publication date |
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EP2211722B1 (en) | 2011-08-24 |
WO2009066214A1 (en) | 2009-05-28 |
CN101868183A (zh) | 2010-10-20 |
US20100310035A1 (en) | 2010-12-09 |
CN101868183B (zh) | 2012-07-04 |
EP2211722A1 (en) | 2010-08-04 |
US7894569B2 (en) | 2011-02-22 |
ATE521285T1 (de) | 2011-09-15 |
JP5587785B2 (ja) | 2014-09-10 |
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