JP4584553B2 - 空間的に一致した画像において時間変化を表示する改良型方法 - Google Patents
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- 238000012545 processing Methods 0.000 claims description 24
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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
- A61B6/488—Diagnostic techniques involving pre-scan acquisition
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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]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/254—Analysis of motion involving subtraction of images
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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- G06T2211/40—Computed tomography
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S378/00—X-ray or gamma ray systems or devices
- Y10S378/901—Computer tomography program or processor
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Description
16 走査ユニット
18 X線源
20 ガントリ
22 X線束
24 対象
25 テーブル
26 X線検出器
58 信頼性マップによる非類似性画像の表示の修正
100 時間画像処理方法
Claims (10)
- 画像走査ユニット(16)から被検体の時間的に連続若しくは断続して第一の画像信号及び第二の画像信号を受信して、これらの画像信号から被検体の時間的変化を抽出する時間画像処理システム(10)であって、
前記第一の画像信号の関心領域と前記第二の画像信号の関心領域とを位置合わせを行い、位置合わせ後の前記第一の画像信号と前記第二の画像信号の差分を表す位置合わせ差分信号を発生する位置合わせモジュール(46)と、
前記位置合わせモジュール(46)からの前記位置合わせ差分信号を受信して、受信した位置合わせ差分信号に基づいて、画像の差分が、被検体の移動に基づくものか、それとも、位置合わせの誤差によるものなのかを表す信頼性マップを決定する信頼性判定モジュール(48)であって、前記信頼性マップは前記第1の画像信号と第2の画像信号と同じ空間を有する、ところの信頼性判定モジュール(48)とを具備し、
前記信頼性マップは、1以上の位置合わせ誤りによるコントラストに対して相対的に対象の時間変化のコントラストを強調するように構成されている、ことを特徴とする時間画像処理システム(10)。 - 前記関心領域が前記対象の小部分の領域を含んでいる場合には、平行移動処理、回転処理、拡大又は剪断処理の内の少なくとも1つの処理を含む剛体位置合わせ変換が、前記第一の画像信号及び前記第二の画像信号を位置合わせするのに用いられる規準となることを特徴とする請求項1に記載のシステム(10)。
- 前記関心領域が前記対象の大部分の領域を含んでいる場合には、1以上の歪み型変換が、前記第一の画像信号及び前記第二の画像信号を位置合わせするのに用いられる規準となることを特徴とする請求項1に記載のシステム(10)。
- 前記1以上の歪み型変換は、異なるコスト関数が複数のスケールの各々において複数の領域について前記第一の画像信号と前記第二の画像信号との間の変化を強調すべく構成されるように設計されている多重領域多重スケール・ピラミッド・ロジックにより具現化される請求項3に記載のシステム(10)。
- 前記コスト関数は数学的相関計算、符号変化測定又は統計解析の1以上を含んでいる請求項4に記載のシステム(10)。
- 前記信頼性判定モジュール(48)は、前記コスト関数及び該コスト関数のよさの指数の少なくとも一方を受け取るように構成されており、前記信頼性判定モジュール(48)はさらに、ここから前記信頼性マップを生成するように構成されている請求項4に記載のシステム(10)。
- 前記信頼性判定モジュール(48)は、前記第一の画像信号と前記第二の画像信号との間の差が解剖学的変化により生じたものか或いは前記1以上の位置合わせ誤りにより生じたものかを識別するように構成されている請求項1に記載のシステム(10)。
- 前記信頼性マップの相対的重要性を調節するように構成されている感度尺度をさらに含んでいる請求項1に記載のシステム(10)。
- 検出器(26)を走査して、走査対象の第一の画像信号及び第二の画像信号を発生する工程と、
位置合わせモジュール(46)において前記第一の画像信号及び前記第二の画像信号を受信する工程と、
前記第一の画像信号及び前記第二の画像信号の1以上の関心領域を、前記1以上の関心領域での位置合わせ信頼度を表す1以上のコスト関数が発生されるように位置合わせする工程と、
前記コスト関数から信頼性マップを生成し、これにより、前記第一の画像信号と前記第二の画像信号との間の時間変化コントラストを強調する工程と、
前記第一の画像信号と前記第二の画像信号との間の時間変化のコントラストと、1以上の位置合わせ誤りから生ずるコントラストとの間の1以上の識別特性を生成する工程とを備えた時間画像処理方法。 - 前記発生する工程は、一次元画像、二次元画像、三次元画像、一次元モンタージュ画像、二次元モンタージュ画像、又は三次元モンタージュ画像を含む第一の画像信号を発生する工程をさらに含んでいる請求項9に記載の方法。
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US10/064,548 US6771736B2 (en) | 2002-07-25 | 2002-07-25 | Method for displaying temporal changes in spatially matched images |
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JP2004057827A JP2004057827A (ja) | 2004-02-26 |
JP2004057827A5 JP2004057827A5 (ja) | 2006-09-07 |
JP4584553B2 true JP4584553B2 (ja) | 2010-11-24 |
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JP (1) | JP4584553B2 (ja) |
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US7627160B2 (en) * | 2003-06-13 | 2009-12-01 | General Electric Company | Analysis of temporal change using dual or multi-energy decomposition images |
US8265728B2 (en) * | 2003-11-26 | 2012-09-11 | University Of Chicago | Automated method and system for the evaluation of disease and registration accuracy in the subtraction of temporally sequential medical images |
JP2006055235A (ja) * | 2004-08-18 | 2006-03-02 | Ge Medical Systems Global Technology Co Llc | X線ct装置およびその撮影方法 |
DE102004062857A1 (de) * | 2004-12-27 | 2006-07-13 | Siemens Ag | Verfahren zur Ermittlung wenigstens eines Skalierungsfaktors für Messwerte eines Computertomographiegerätes |
US20070081703A1 (en) * | 2005-10-12 | 2007-04-12 | Industrial Widget Works Company | Methods, devices and systems for multi-modality integrated imaging |
DE102005058095A1 (de) * | 2005-12-05 | 2007-06-06 | Forschungszentrum Jülich GmbH | Verfahren zur topographischen Darstellung von Veränderungen in einem untersuchten Gehirn |
US7769216B2 (en) * | 2005-12-29 | 2010-08-03 | Hologic, Inc. | Facilitating comparison of medical images |
CN101453950A (zh) * | 2006-06-01 | 2009-06-10 | 皇家飞利浦电子股份有限公司 | 分层运动估计 |
US8170317B2 (en) * | 2006-07-31 | 2012-05-01 | Koninklijke Philips Electronics N.V. | Automatic iso-centering for rotational angiography |
US7693349B2 (en) * | 2006-08-15 | 2010-04-06 | General Electric Company | Systems and methods for interactive image registration |
US7974456B2 (en) * | 2006-09-05 | 2011-07-05 | Drvision Technologies Llc | Spatial-temporal regulation method for robust model estimation |
US8223143B2 (en) | 2006-10-27 | 2012-07-17 | Carl Zeiss Meditec, Inc. | User interface for efficiently displaying relevant OCT imaging data |
US8218905B2 (en) * | 2007-10-12 | 2012-07-10 | Claron Technology Inc. | Method, system and software product for providing efficient registration of 3D image data |
US8731256B2 (en) * | 2008-01-31 | 2014-05-20 | The Johns Hopkins University | Automated image analysis for magnetic resonance imaging |
EP2319013B1 (en) * | 2008-08-28 | 2018-02-28 | Koninklijke Philips N.V. | Apparatus for determining a modification of a size of an object |
DE102008049467B4 (de) * | 2008-09-29 | 2016-12-29 | Siemens Healthcare Gmbh | Verfahren und Vorrichtung zur Registrierung von tomographischen Volumendatensätzen des Darms |
US8786873B2 (en) | 2009-07-20 | 2014-07-22 | General Electric Company | Application server for use with a modular imaging system |
US8694075B2 (en) * | 2009-12-21 | 2014-04-08 | General Electric Company | Intra-operative registration for navigated surgical procedures |
KR101430121B1 (ko) * | 2010-04-06 | 2014-08-14 | 삼성전자주식회사 | 멀티-에너지 X-ray 시스템의 영상 처리 장치 및 그 방법 |
US8243882B2 (en) | 2010-05-07 | 2012-08-14 | General Electric Company | System and method for indicating association between autonomous detector and imaging subsystem |
US10194874B2 (en) | 2011-05-27 | 2019-02-05 | Ge Sensing & Inspection Technologies Gmbh | Computed tomography method, computer software, computing device and computed tomography system for determining a volumetric representation of a sample |
JP6049999B2 (ja) * | 2012-01-13 | 2016-12-21 | 三谷セキサン株式会社 | 杭穴掘削管理方法及び杭穴掘削装置 |
US8944597B2 (en) | 2012-01-19 | 2015-02-03 | Carl Zeiss Meditec, Inc. | Standardized display of optical coherence tomography imaging data |
US9420945B2 (en) | 2013-03-14 | 2016-08-23 | Carl Zeiss Meditec, Inc. | User interface for acquisition, display and analysis of ophthalmic diagnostic data |
US9595088B2 (en) | 2013-11-20 | 2017-03-14 | Toshiba Medical Systems Corporation | Method of, and apparatus for, visualizing medical image data |
EP3234918A1 (en) | 2014-12-16 | 2017-10-25 | Koninklijke Philips N.V. | Correspondence probability map driven visualization |
JP6278366B2 (ja) * | 2016-09-06 | 2018-02-14 | 三谷セキサン株式会社 | 杭穴掘削管理方法 |
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JPH0737074A (ja) * | 1992-11-25 | 1995-02-07 | Arch Dev Corp | 時間的に連続する胸部画像間の経時変化を検出する方法及び装置 |
JPH08110939A (ja) * | 1994-10-12 | 1996-04-30 | Konica Corp | 画像の位置合わせ処理装置及び画像間演算処理装置 |
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- 2003-07-21 FR FR0308856A patent/FR2842931B1/fr not_active Expired - Fee Related
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH0737074A (ja) * | 1992-11-25 | 1995-02-07 | Arch Dev Corp | 時間的に連続する胸部画像間の経時変化を検出する方法及び装置 |
JPH08110939A (ja) * | 1994-10-12 | 1996-04-30 | Konica Corp | 画像の位置合わせ処理装置及び画像間演算処理装置 |
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JP2004057827A (ja) | 2004-02-26 |
US20040017892A1 (en) | 2004-01-29 |
US6771736B2 (en) | 2004-08-03 |
FR2842931B1 (fr) | 2006-01-06 |
FR2842931A1 (fr) | 2004-01-30 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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LAPS | Cancellation because of no payment of annual fees |