JP2004174262A - 灌流データを取得する方法及び装置 - Google Patents
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- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
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Abstract
【解決手段】灌流データを取得する方法(60)が、関心対象を提供する工程(62)と、単一エネルギ型計算機式断層写真法(CT)イメージング・システム(10)によって関心対象を撮像するために用いられる造影剤の第一の量を推定する工程(64)と、造影剤の第一の量よりも少ない第二の量の造影剤を関心対象に導入する工程(66)と、多重エネルギ型計算機式断層写真法(MECT)システムを用いて関心対象を走査してデータを取得する工程(68)とを含んでいる。
【選択図】 図1
Description
Q(T)は組織強調曲線であり、
BFは血流量であり、
Ca(t)は経時的な造影剤灌流量である。
12 ガントリ
14 放射線源
16 放射線コーン・ビーム
18 検出器アレイ
20 検出器素子
22 患者
24 回転中心
26 制御機構
42 表示器
46 モータ式テーブル
48 ガントリ開口
50 媒体読み取り装置
52 媒体
60 医療イメージング・システムを用いて灌流データを取得する方法
Claims (8)
- 1以上の放射線源(12)と、
1以上の放射線検出器(18)と、
前記放射線源及び前記放射線検出器に結合されているコンピュータ(36)とを備えており、該コンピュータは、
一回目の走査時に第一のエネルギにおいて造影剤の第一の画像を取得し、
前記一回目の走査時に第二のエネルギにおいて背景組織の第二の画像を取得して、
前記第一の画像から前記第二の画像を減算して強調画像を形成するように構成されている、多重エネルギ型計算機式断層写真法(MECT)システム(10)。 - 前記コンピュータ(36)はさらに、前記第一の画像及び前記第二の画像を分解するように構成されている、請求項1に記載の多重エネルギ型計算機式断層写真法(MECT)システム(10)。
- 前記コンピュータ(36)はさらに、CT数差アルゴリズム、コンプトン及び光電分解アルゴリズム、基底物質分解(BMD)アルゴリズム、並びに対数減算分解(LSD)アルゴリズムの1以上を用いて前記第一の画像及び前記第二の画像を分解するように構成されている、請求項1に記載の多重エネルギ型計算機式断層写真法(MECT)システム(10)。
- 前記コンピュータ(36)はさらに、コンプトン及び光電分解アルゴリズムを用いて前記第一の画像及び前記第二の画像を分解するように構成されている、請求項1に記載の多重エネルギ型計算機式断層写真法(MECT)システム(10)。
- 前記コンピュータ(36)はさらに、CT数差アルゴリズムを用いて前記第一の画像及び前記第二の画像を分解するように構成されている、請求項1に記載の多重エネルギ型計算機式断層写真法(MECT)システム(10)。
- 前記コンピュータ(36)はさらに、基底物質分解(BMD)アルゴリズムを用いて前記第一の画像及び前記第二の画像を分解するように構成されている、請求項1に記載の多重エネルギ型計算機式断層写真法(MECT)システム(10)。
- 前記コンピュータ(36)はさらに、対数減算分解(LSD)アルゴリズムを用いて前記第一の画像及び前記第二の画像を分解するように構成されている、請求項1に記載の多重エネルギ型計算機式断層写真法(MECT)システム(10)。
- 前記コンピュータ(36)はさらに、第一の血管に造影剤を導入するように構成されている、請求項3に記載の多重エネルギ型計算機式断層写真法(MECT)システム(10)。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/306,637 US6891918B2 (en) | 2002-11-27 | 2002-11-27 | Methods and apparatus for acquiring perfusion data |
Publications (3)
Publication Number | Publication Date |
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JP2004174262A true JP2004174262A (ja) | 2004-06-24 |
JP2004174262A5 JP2004174262A5 (ja) | 2007-01-18 |
JP4491222B2 JP4491222B2 (ja) | 2010-06-30 |
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JP2003396589A Expired - Lifetime JP4491222B2 (ja) | 2002-11-27 | 2003-11-27 | 灌流データを取得する方法及び装置 |
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Country | Link |
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US (1) | US6891918B2 (ja) |
JP (1) | JP4491222B2 (ja) |
CN (1) | CN1271972C (ja) |
DE (1) | DE10355383A1 (ja) |
NL (1) | NL1024859C2 (ja) |
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JP2007021184A (ja) * | 2005-06-14 | 2007-02-01 | Canon Inc | 放射線撮像装置及びその制御方法並びに放射線撮像システム |
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JP2009189800A (ja) * | 2007-12-21 | 2009-08-27 | General Electric Co <Ge> | 画像から関心のある特徴部を抽出するためのシステム及び方法 |
US9070181B2 (en) | 2007-12-21 | 2015-06-30 | General Electric Company | System and method for extracting features of interest from an image |
JP2009261942A (ja) * | 2008-04-21 | 2009-11-12 | Toshiba Corp | 二重エネルギーコンピュータ断層撮影における事前再構成分解及び校正を行うための方法及び装置 |
KR20110080532A (ko) * | 2010-01-06 | 2011-07-13 | 삼성전자주식회사 | 멀티-에너지 X-ray 영상 처리 방법 및 그 시스템 |
JP2013516269A (ja) * | 2010-01-06 | 2013-05-13 | サムスン エレクトロニクス カンパニー リミテッド | マルチエネルギx線画像処理方法およびそのシステム |
KR101669434B1 (ko) * | 2010-01-06 | 2016-10-27 | 삼성전자주식회사 | 멀티-에너지 X-ray 영상 처리 방법 및 그 시스템 |
JP2019519317A (ja) * | 2016-07-06 | 2019-07-11 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | エンドリーク検出のための画像を提供するシステム |
JP2022520717A (ja) * | 2019-02-06 | 2022-04-01 | ウィリアム イー バトラー, | 血管造影の改善された方法 |
JP7357060B2 (ja) | 2019-02-06 | 2023-10-05 | ウィリアム イー バトラー, | 血管造影の改善された方法 |
Also Published As
Publication number | Publication date |
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JP4491222B2 (ja) | 2010-06-30 |
US6891918B2 (en) | 2005-05-10 |
CN1271972C (zh) | 2006-08-30 |
DE10355383A1 (de) | 2004-06-09 |
NL1024859A1 (nl) | 2004-05-28 |
NL1024859C2 (nl) | 2005-07-27 |
US20040101090A1 (en) | 2004-05-27 |
CN1517071A (zh) | 2004-08-04 |
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