JP2004195237A5 - - Google Patents

Download PDF

Info

Publication number
JP2004195237A5
JP2004195237A5 JP2003420296A JP2003420296A JP2004195237A5 JP 2004195237 A5 JP2004195237 A5 JP 2004195237A5 JP 2003420296 A JP2003420296 A JP 2003420296A JP 2003420296 A JP2003420296 A JP 2003420296A JP 2004195237 A5 JP2004195237 A5 JP 2004195237A5
Authority
JP
Japan
Prior art keywords
silicone oil
filling material
liquid filling
amount
gadolinium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2003420296A
Other languages
English (en)
Other versions
JP2004195237A (ja
JP3977325B2 (ja
Filing date
Publication date
Priority claimed from US10/324,578 external-priority patent/US6791327B2/en
Application filed filed Critical
Publication of JP2004195237A publication Critical patent/JP2004195237A/ja
Publication of JP2004195237A5 publication Critical patent/JP2004195237A5/ja
Application granted granted Critical
Publication of JP3977325B2 publication Critical patent/JP3977325B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Claims (8)

  1. 1テスラ超の磁場で磁気共鳴イメージング・システム10を較正するのに用いられるファントム槽80であって、
    内部中空領域86を有する外部構造88と、
    前記内部中空領域86に収容されており、第一の量のシリコーン油と非イオン性常磁性化合物を含んでいる、第二の量のドープ剤とで構成される液体充填材料90とを備えており、
    前記ドープ剤を用いて前記第一の量のシリコーン油のスピン−格子緩和時間を短縮させる、ファントム槽80。
  2. 前記非イオン性常磁性化合物はガドリニウムβ−ジケトネート化合物を含んでいる、請求項に記載の液体充填材料90。
  3. 前記ガドリニウムβ−ジケトネート化合物はガドリニウムトリス(6,6,7,7,8,8,8−ヘプタ−フルオロ−2,2−ジメチル−3,5−オクタンジオネート)を含んでいる、請求項に記載の液体充填材料90。
  4. 前記ガドリニウムβ−ジケトネート化合物はガドリニウムトリス(2,2,6,6−テトラメチル−3,5−ヘプタンジオネート)を含んでいる、請求項に記載の液体充填材料90。
  5. 1テスラ以上の共鳴での磁気共鳴イメージング・システム10の較正時間を短縮させる方法であって、
    外部構造88と、一定量のシリコーン油液体充填材料を有する内部中空領域86とを有するファントム槽80を用意する工程と、
    前記シリコーン油液体充填材料よりも短いスピン−格子緩和時間を有する液体充填材料90を形成するために前記シリコーン油に少量の非イオン性常磁性化合物を混入する工程とを備えた方法。
  6. 少量の非イオン性常磁性化合物を混入する前記工程は、前記シリコーン油液体充填材料よりも短いスピン−格子緩和時間を有する液体充填材料90を形成するために前記シリコーン油液体充填材料に少量の非イオン性常磁性物質を混入する工程を含んでいる、請求項に記載の方法。
  7. 少量の非イオン性常磁性物質を混入する前記工程は、前記シリコーン油液体充填材料よりも短いスピン−格子緩和時間を有する液体充填材料90を形成するために前記シリコーン油液体充填材料に少量のガドリニウムβ−ジケトネート化合物を混入する工程を含んでいる、請求項に記載の方法。
  8. 前記シリコーン油液体充填材料90に少量の非イオン性常磁性化合物を混入する前記工程は、
    所定の寸法及び所定の形状を有するファントム槽80に液体充填材料90を収容した状態で前記磁気共鳴イメージング・システムに望ましいスピン−格子緩和時間を決定する工程と、
    前記望ましいスピン−格子緩和時間を達成するために一定量のシリコーン油液体充填材料に混入されるドープ剤の量を決定する工程と、
    液体充填材料90を形成するために前記一定量のシリコーン液体充填材料に前記量のドープ剤を混入する工程とを含んでいる、請求項に記載の方法。
JP2003420296A 2002-12-19 2003-12-18 磁気共鳴撮像に用いられる液体シリコーンのスピン−格子緩和時間を短縮する方法 Expired - Lifetime JP3977325B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/324,578 US6791327B2 (en) 2002-12-19 2002-12-19 Method for reducing spin-lattice relaxation time of silicone fluids used in magnetic resonance imaging

Publications (3)

Publication Number Publication Date
JP2004195237A JP2004195237A (ja) 2004-07-15
JP2004195237A5 true JP2004195237A5 (ja) 2007-02-01
JP3977325B2 JP3977325B2 (ja) 2007-09-19

Family

ID=32468970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003420296A Expired - Lifetime JP3977325B2 (ja) 2002-12-19 2003-12-18 磁気共鳴撮像に用いられる液体シリコーンのスピン−格子緩和時間を短縮する方法

Country Status (4)

Country Link
US (1) US6791327B2 (ja)
JP (1) JP3977325B2 (ja)
DE (1) DE10357604B4 (ja)
NL (1) NL1025022C2 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6739586B2 (en) * 2001-11-05 2004-05-25 Hon Hai Precision Ind. Co., Ltd. Apparatus and method for forming workpieces
US7476330B2 (en) * 2003-09-24 2009-01-13 Varian, Inc. Low temperature susceptibility compensation
US7557577B2 (en) 2003-12-08 2009-07-07 Siemens Aktiengesselschaft Water-soluble paramagnetic substance reducing the relaxation time of the coolant in an MRI system
DE102004009286A1 (de) * 2003-12-08 2005-06-30 Siemens Ag Verwendung eines wasserlöslichen paramagnetischen Stoffes zur Herabsetzung der Relaxationszeit eines Kühlmittels sowie entsprechendes Verfahren
DE102005000761B4 (de) * 2005-01-04 2008-05-21 Siemens Ag Intrakorporal zu setzende Endolokalspule zur Aufnahme von Magnetresonanzsignalen
GB2422905B (en) * 2005-02-04 2007-02-14 Siemens Magnet Technology Ltd Material for electrical isolation and vibro-acoustic performance
EP1985312A1 (en) * 2007-04-25 2008-10-29 Koninklijke Philips Electronics N.V. T1 reduction in 19F magnetic resonance imaging (MRI)
WO2009005096A1 (ja) * 2007-07-05 2009-01-08 Japan Atomic Energy Agency 磁気共鳴診断用組成物
DE102008063629B4 (de) * 2008-12-18 2012-05-24 Siemens Aktiengesellschaft Lokalspulenanordnung für Magnetresonanzanwendungen und Patientenliege für eine Magnetresonanzanlage mit integrierten elektrischen Schnittstellen
WO2010085796A2 (en) 2009-01-26 2010-07-29 The United States Of America, As Represented By The Secretary, Department Of Health And Human Services Office Of Technology Transfer, National Institutes Of Health A phantom for diffusion mri imaging
WO2012049584A1 (en) * 2010-10-13 2012-04-19 Koninklijke Philips Electronics N.V. Mri phantom with a plurality of compartments for t1 calibration
CA2987792C (en) * 2015-09-04 2018-10-23 Synaptive Medical (Barbados) Inc. Cerebrospinal diffusion phantom
EP3203256A1 (en) * 2016-02-02 2017-08-09 B. Braun Melsungen AG Calibration of mri systems using pre-defined concentrations of 19f isotopes as reference
GB2547727B (en) * 2016-02-29 2022-05-04 Gold Standard Phantoms Ltd Perfusion phantom

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0246882Y2 (ja) * 1984-11-13 1990-12-11
US4719406A (en) * 1986-02-07 1988-01-12 General Electric Company Phantom for performance evaluation of a nuclear magnetic resonance scanner
CA1311520C (en) * 1989-02-24 1992-12-15 Ernest L. Madsen Contrast resolution tissue mimicking phantoms for nuclear magetic resonance imaging
GB9007655D0 (en) * 1990-04-04 1990-05-30 Hall Lawrence D Magnetic resonance imaging technique
GB9216843D0 (en) * 1992-08-07 1992-09-23 Cancer Res Inst Contrast agents for medical imaging
US6720766B2 (en) * 1995-04-14 2004-04-13 Kevin J. Parker Thin film phantoms and phantom systems
US5770943A (en) * 1996-12-30 1998-06-23 General Electric Company Method for measuring and compensating for spatially and temporally varying magnetic fields induced by eddy currents
WO1999049336A1 (en) * 1998-03-20 1999-09-30 Princeton University Method and apparatus for improvement of magnetic resonance imaging contrast
JP2001000430A (ja) * 1999-06-24 2001-01-09 Alcare Co Ltd 画像撮影用のマ−カ−
US6318146B1 (en) * 1999-07-14 2001-11-20 Wisconsin Alumni Research Foundation Multi-imaging modality tissue mimicking materials for imaging phantoms
GB9926923D0 (en) * 1999-11-15 2000-01-12 Marconi Electronic Syst Ltd Magnetic resonance imaging

Similar Documents

Publication Publication Date Title
JP2004195237A5 (ja)
Herrmann et al. 3D printing of MRI compatible components: Why every MRI research group should have a low-budget 3D printer
Storey et al. R2* imaging of transfusional iron burden at 3T and comparison with 1.5 T
CA1311520C (en) Contrast resolution tissue mimicking phantoms for nuclear magetic resonance imaging
Hsu et al. Mitigation of susceptibility‐induced signal loss in neuroimaging using localized shim coils
Butts et al. Reduction of blurring in view angle tilting MRI
Krüger et al. Physiological noise in oxygenation‐sensitive magnetic resonance imaging
Yadav et al. Natural D‐glucose as a biodegradable MRI relaxation agent
ATE447186T1 (de) Angiographie mit magnetischer resonanz unter verwendung einer bildformung durch projektionen mit einem verschobenen patiententisch
Abduljalil et al. Macroscopic susceptibility in ultra high field MRI
Duong et al. Extracellular apparent diffusion in rat brain
CN101074985A (zh) 倾斜磁场线圈、其制造方法、及具备它的磁共鸣成像装置
Peng et al. Renal lipids and oxygenation in diabetic mice: noninvasive quantification with MR imaging
WO2002053273A3 (en) Process and apparatus for blending and distributing a slurry solution
Jensen et al. Microvessel density estimation in the human brain by means of dynamic contrast‐enhanced echo‐planar imaging
JP3977325B2 (ja) 磁気共鳴撮像に用いられる液体シリコーンのスピン−格子緩和時間を短縮する方法
Nakamichi et al. Establishing normal diameter range of the cochlear and facial nerves with 3D-CISS at 3T
Elmghirbi et al. Toward a noninvasive estimate of interstitial fluid pressure by dynamic contrast‐enhanced MRI in a rat model of cerebral tumor
Naganawa et al. Visualization of endolymphatic hydrops after intratympanic injection of Gd-DTPA: comparison of 2D and 3D real inversion recovery imaging
Okamoto et al. Large vestibular aqueduct syndrome with high CT density and high MR signal intensity.
Naganawa et al. Appearance of the organum vasculosum of the lamina terminalis on contrast-enhanced MR imaging
Vikhoff et al. Artefacts caused by dental filling materials in MR imaging
Zu et al. Spin‐lock imaging of intrinsic susceptibility gradients in tumors
Xu et al. Magnetic susceptibility shift selected imaging: MESSI
Sammi et al. Measurements of human brain ethanol T2 by spectroscopic imaging at 4 T