JP5623700B2 - 飛行時間能力を有するpet/mriスキャナ - Google Patents
飛行時間能力を有するpet/mriスキャナ Download PDFInfo
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- JP5623700B2 JP5623700B2 JP2008507205A JP2008507205A JP5623700B2 JP 5623700 B2 JP5623700 B2 JP 5623700B2 JP 2008507205 A JP2008507205 A JP 2008507205A JP 2008507205 A JP2008507205 A JP 2008507205A JP 5623700 B2 JP5623700 B2 JP 5623700B2
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/4808—Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]
- G01R33/481—MR combined with positron emission tomography [PET] or single photon emission computed tomography [SPECT]
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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]
- A61B6/037—Emission tomography
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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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4417—Constructional features of apparatus for radiation diagnosis related to combined acquisition of different diagnostic modalities
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
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- 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
- G01T1/1603—Measuring radiation intensity with a combination of at least two different types of detector
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- G—PHYSICS
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- G06T11/00—2D [Two Dimensional] image generation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating
- G01R33/5673—Gating or triggering based on a physiological signal other than an MR signal, e.g. ECG gating or motion monitoring using optical systems for monitoring the motion of a fiducial marker
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Description
Claims (1)
- イメージング領域において空間的にエンコードされた磁気共鳴を取得するスキャナハウジングに備えられている少なくとも主磁石及び磁場勾配コイルを有する磁気共鳴イメージングスキャナ;
前記スキャナハウジングに備えられ、前記イメージング領域から放出されるガンマ線を検出する複数の放射線固体検出器;
(i)前記放射線固体検出器により出力された実質的に同時のガンマ線検出の位置と、
(ii)前記実質的に同時のガンマ線検出間の時間間隔と、に基づいて、局在化した応答線を決定する飛行時間陽電子放射断層撮影(TOF−PET)処理部;
TOF−PET画像を生成するように、前記局在化した応答線を再構成するTOF−PET再構成処理部;
MRI画像を生成するように、前記取得された磁気共鳴を再構成する磁気共鳴イメージング(MRI)再構成処理部;並びに
前記磁場勾配コイルとTOF−PETデータの取得との間に生じる干渉を低減するために、前記磁場勾配コイルが動作しているときに、前記イメージング領域から放出されるガンマ線の検出を抑制し、そして、前記磁場勾配コイルが動作していないとき、前記ガンマ線の検出の収集を再開する、ゲーティング回路;
を有するイメージングシステムであって:
前記放射線固体検出器は、固体シリコン増倍管(SiPM)により形成され、かつTOF−PETにおいて2つの実質的に同時のガンマ線検出の間の飛行時間差を検出するのに十分高い分解能を有し、前記TOF−PET処理部は、前記応答線に沿って陽電子−電子消滅事象を局在化するように2つのガンマ電子検出事象のタイムスタンプ間の時間差を解析する;
イメージングシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67403305P | 2005-04-22 | 2005-04-22 | |
US60/674,033 | 2005-04-22 | ||
PCT/IB2006/050944 WO2006111869A2 (en) | 2005-04-22 | 2006-03-28 | Pet/mr scanner with time-of-flight capability |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013046889A Division JP6088297B2 (ja) | 2005-04-22 | 2013-03-08 | イメージングシステム及び方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008536600A JP2008536600A (ja) | 2008-09-11 |
JP5623700B2 true JP5623700B2 (ja) | 2014-11-12 |
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008507205A Active JP5623700B2 (ja) | 2005-04-22 | 2006-03-28 | 飛行時間能力を有するpet/mriスキャナ |
JP2013046889A Active JP6088297B2 (ja) | 2005-04-22 | 2013-03-08 | イメージングシステム及び方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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JP2013046889A Active JP6088297B2 (ja) | 2005-04-22 | 2013-03-08 | イメージングシステム及び方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7626389B2 (ja) |
EP (1) | EP1875273B1 (ja) |
JP (2) | JP5623700B2 (ja) |
CN (1) | CN101163989B (ja) |
AT (1) | ATE534045T1 (ja) |
RU (1) | RU2384866C2 (ja) |
WO (1) | WO2006111869A2 (ja) |
Families Citing this family (103)
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