JP4696262B2 - 超偏極希ガス製造装置及び超偏極希ガスを用いた核磁気共鳴分光装置並びに磁気共鳴イメージング装置 - Google Patents
超偏極希ガス製造装置及び超偏極希ガスを用いた核磁気共鳴分光装置並びに磁気共鳴イメージング装置 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
- A61K49/18—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes
- A61K49/1806—Suspensions, emulsions, colloids, dispersions
- A61K49/1815—Suspensions, emulsions, colloids, dispersions compo-inhalant, e.g. breath tests
-
- 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
- G01R33/282—Means specially adapted for hyperpolarisation or for hyperpolarised contrast agents, e.g. for the generation of hyperpolarised gases using optical pumping cells, for storing hyperpolarised contrast agents or for the determination of the polarisation of a hyperpolarised contrast agent
-
- 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
- G01R33/5601—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Radiology & Medical Imaging (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
請求項1にかかる発明は、希ガスをアルカリ金属存在下で光ポンピングして超偏極希ガスを生成する超偏極希ガス生成セルと、前記超偏極希ガス生成セルの下流に、内径0.1〜1.25mm且つ長さ1〜22mの溶融シリカ製又は樹脂製の極細キャピラリー管を備え、前記超偏極希ガスを5〜100sccmの範囲で流すよう制御されたことを特徴とする超偏極希ガス製造装置である。
内径0.53mm(実施例1)、内径0.25mm(実施例2)で、長さがいずれも1.2mの溶融シリカからなる極細キャピラリー管(ジーエルサイエンス製 ヒューズドシリカキャピラリーチューブ)を用いて、超偏極キセノンガスの流量を、5、10、15、20、25、30、35、40、45、50、55、60、65sccmと変化させながら、NMR信号強度を測定した。
内径0.53mm(実施例3)の溶融シリカからなる極細キャピラリー管(ジーエルサイエンス製 ヒューズドシリカキャピラリーチューブ)を用いて、その長さを、それぞれ1、3、5、10、22mと変化させながら、NMR信号強度を測定した。超偏極キセノンガスの流量依存を実施例1と同様にして測定を行った。極細キャピラリー管の長さとNMR信号強度と関係を、表1及び図4のグラフに示す。
内径0.25mm(実施例4)の極細キャピラリー管を用いて、その長さを、それぞれ1、3、5、10mと変化させた以外は、実施例3と同様にして、NMR信号強度を測定した。極細キャピラリー管の長さとNMR信号強度と関係を、表1及び図4のグラフに示す。
内径4mm、長さ0.5m(比較例1)と、内径4mm、長さ1m(比較例2)のパイレックス(登録商標)ガラス管をそれぞれ用いて、超偏極キセノンガスの流量を20sccmとして、実施例1と同様にしてNMR信号強度の測定を行った。比較例1では、信号強度1.4Vで信号が観察されたが、比較例2では、信号は検出されなかった。
14 超偏極希ガス生成セル
20 極細キャピラリー管
31 超偏極希ガス製造装置
Claims (3)
- 希ガスをアルカリ金属存在下で光ポンピングして超偏極希ガスを生成する超偏極希ガス生成セルと、
前記超偏極希ガス生成セルの下流に、内径0.1〜1.25mm且つ長さ1〜22mの溶融シリカ製又は樹脂製の極細キャピラリー管を備え、前記超偏極希ガスを5〜100sccmの範囲で流すよう制御されたことを特徴とする超偏極希ガス製造装置。 - 請求項1に記載の超偏極希ガス製造装置と、核磁気共鳴分光装置を備えたことを特徴とする超偏極希ガスを用いた核磁気共鳴分光装置。
- 請求項1に記載の超偏極希ガス製造装置と、磁気共鳴イメージング装置を備えたことを特徴とする超偏極希ガスを用いた磁気共鳴イメージング装置。
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JP2005146029A JP4696262B2 (ja) | 2005-05-18 | 2005-05-18 | 超偏極希ガス製造装置及び超偏極希ガスを用いた核磁気共鳴分光装置並びに磁気共鳴イメージング装置 |
US11/435,138 US7382124B2 (en) | 2005-05-18 | 2006-05-16 | Apparatus for producing hyperpolarized noble gas, and nuclear magnetic resonance spectrometer and magnetic resonance imager which use hyperpolarized noble gases |
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JP2005146029A JP4696262B2 (ja) | 2005-05-18 | 2005-05-18 | 超偏極希ガス製造装置及び超偏極希ガスを用いた核磁気共鳴分光装置並びに磁気共鳴イメージング装置 |
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JP2006322802A JP2006322802A (ja) | 2006-11-30 |
JP4696262B2 true JP4696262B2 (ja) | 2011-06-08 |
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JP (1) | JP4696262B2 (ja) |
Families Citing this family (11)
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JP4696262B2 (ja) * | 2005-05-18 | 2011-06-08 | 独立行政法人産業技術総合研究所 | 超偏極希ガス製造装置及び超偏極希ガスを用いた核磁気共鳴分光装置並びに磁気共鳴イメージング装置 |
JP4817317B2 (ja) * | 2006-11-24 | 2011-11-16 | 独立行政法人産業技術総合研究所 | 核スピン偏極希ガスの製造装置と核磁気共鳴分光装置並びに核磁気共鳴イメージング装置 |
JP5582756B2 (ja) * | 2008-11-28 | 2014-09-03 | 株式会社東芝 | 高周波コイルユニットおよび磁気共鳴診断装置 |
EP2295998A1 (en) * | 2009-09-10 | 2011-03-16 | Koninklijke Philips Electronics N.V. | Magnetic resonance imaging system and magnet comprising a polarizer |
JP5826769B2 (ja) * | 2010-02-16 | 2015-12-02 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 軌道角運動量を持つ光を用いる光学過分極 |
JP5499417B2 (ja) * | 2010-02-22 | 2014-05-21 | 国立大学法人大阪大学 | アルカリ金属導入装置、及びアルカリ金属導入方法 |
JP5954368B2 (ja) * | 2014-07-23 | 2016-07-20 | セイコーエプソン株式会社 | ガスセル及び磁気測定装置 |
JP6164340B2 (ja) * | 2016-06-08 | 2017-07-19 | セイコーエプソン株式会社 | ガスセル及び磁気測定装置 |
CN106556616B (zh) * | 2016-10-31 | 2017-12-12 | 重庆大学 | 一种水压作用下岩石液氮冻裂裂纹可视化试验方法 |
CN107202966B (zh) * | 2017-05-25 | 2019-09-24 | 云南电网有限责任公司电力科学研究院 | 一种变压器绕组相间漏磁场的测量方法和*** |
JP7188965B2 (ja) * | 2018-10-05 | 2022-12-13 | 浜松ホトニクス株式会社 | 光励起磁気センサ用セルモジュール |
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US5545396A (en) * | 1994-04-08 | 1996-08-13 | The Research Foundation Of State University Of New York | Magnetic resonance imaging using hyperpolarized noble gases |
US5642625A (en) * | 1996-03-29 | 1997-07-01 | The Trustees Of Princeton University | High volume hyperpolarizer for spin-polarized noble gas |
DE69820415T2 (de) * | 1997-01-08 | 2004-09-16 | Amersham Health As | Verfahren zur bilderzeugung mit magnetischer resonanz |
JPH11248809A (ja) * | 1998-03-03 | 1999-09-17 | Agency Of Ind Science & Technol | 偏極希ガスの製造装置を有する核磁気共鳴検出装置並びにその装置を用いる核磁気共鳴測定方法 |
HUP0104279A3 (en) * | 1998-06-17 | 2002-05-28 | Medi Physics Inc Princeton | Hyperpolarized gas transport device and associated transport method |
EP1155339A1 (en) * | 1999-02-23 | 2001-11-21 | Medi-Physics, Inc. | Portable system for monitoring the polarization level of a hyperpolarized gas during transport |
US6648130B1 (en) * | 1999-08-11 | 2003-11-18 | Medi-Physics, Inc. | Hyperpolarized gas transport and storage devices and associated transport and storage methods using permanent magnets |
JP2003526437A (ja) * | 2000-03-13 | 2003-09-09 | メディ−フィジックス・インコーポレイテッド | ガス状過分極129Xeの直接注射を使用する診断処置並びに関連するシステムおよび生成物 |
JP2005515406A (ja) * | 2001-10-31 | 2005-05-26 | ザ・リージェンツ・オブ・ザ・ユニバーシティ・オブ・カリフォルニア | レーザーで分極化されたガスの遠隔nmr/mri検出 |
JP4169122B2 (ja) | 2002-02-26 | 2008-10-22 | 独立行政法人産業技術総合研究所 | 核スピン偏極希ガスの製造装置とこれを用いた偏極希ガスの製造方法 |
JP4771934B2 (ja) * | 2003-01-17 | 2011-09-14 | メディ−フィジックス・インコーポレイテッド | 光ポンピングされた超偏極ガスを生成する方法 |
JP4696262B2 (ja) * | 2005-05-18 | 2011-06-08 | 独立行政法人産業技術総合研究所 | 超偏極希ガス製造装置及び超偏極希ガスを用いた核磁気共鳴分光装置並びに磁気共鳴イメージング装置 |
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