Literature DB >> 18768734

Anomalous J-modulation effects on amino acids in clinical 3T MR spectroscopy.

H-S Liu1, H-W Chung, C-J Juan, S-Y Tsai, C-Y Wang, C-C Chan, G-S Huang, M-C Chou, C-S Lee, C-W Ko, N-Y Cho, C-Y Chen.   

Abstract

The signal-intensity loss from anomalous J-modulation effects due to chemical-shift displacement was investigated on amino acid groups (alanine, valine, leucine, and isoleucine) at 3T by using point-resolved (1)H spectroscopy in patients with brain abscess and phantom experiments. With a larger chemical shift between methyl and methine resonances, alanine shows a greater effect of signal-intensity cancellation compared with other amino acids around 0.9 ppm, resulting in noninverted doublets at a TE of 144 ms.

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Year:  2008        PMID： 18768734      PMCID： PMC8118799          DOI： 10.3174/ajnr.A1131

Source DB:  PubMed          Journal:  AJNR Am J Neuroradiol        ISSN： 0195-6108            Impact factor:   3.825


  11 in total

1.  Proton NMR chemical shifts and coupling constants for brain metabolites.

Authors:  V Govindaraju; K Young; A A Maudsley
Journal:  NMR Biomed       Date:  2000-05       Impact factor: 4.044

2.  Brain abscesses: etiologic categorization with in vivo proton MR spectroscopy.

Authors:  Monika Garg; Rakesh K Gupta; Mazhar Husain; Sanjeev Chawla; Jayant Chawla; Rajesh Kumar; Sajja B Rao; Mithlesh K Misra; Kashi N Prasad
Journal:  Radiology       Date:  2003-12-29       Impact factor: 11.105

3.  Transmit/receive headcoil for optimal 1H MR spectroscopy of the brain in paediatric patients at 3T.

Authors:  D W J Klomp; M van der Graaf; M A A P Willemsen; Y M van der Meulen; A P M Kentgens; A Heerschap
Journal:  MAGMA       Date:  2004-05-24       Impact factor: 2.310

4.  Pitfalls in lactate measurements at 3T.

Authors:  T Lange; U Dydak; T P L Roberts; H A Rowley; M Bjeljac; P Boesiger
Journal:  AJNR Am J Neuroradiol       Date:  2006-04       Impact factor: 3.825

5.  Homonuclear J coupling effects in volume localized NMR spectroscopy: pitfalls and solutions.

Authors:  D A Yablonskiy; J J Neil; M E Raichle; J J Ackerman
Journal:  Magn Reson Med       Date:  1998-02       Impact factor: 4.668

6.  Necrotic tumor versus brain abscess: importance of amino acids detected at 1H MR spectroscopy--initial results.

Authors:  S Grand; G Passaro; A Ziegler; F Estève; C Boujet; D Hoffmann; C Rubin; C Segebarth; M Décorps; J F Le Bas; C Rémy
Journal:  Radiology       Date:  1999-12       Impact factor: 11.105

7.  Lactate detection at 3T: compensating J coupling effects with BASING.

Authors:  D A Kelley; L L Wald; J M Star-Lack
Journal:  J Magn Reson Imaging       Date:  1999-05       Impact factor: 4.813

8.  Optimized detection of lactate at high fields using inner volume saturation.

Authors:  Richard A E Edden; Michael Schär; Argye E Hillis; Peter B Barker
Journal:  Magn Reson Med       Date:  2006-10       Impact factor: 4.668

9.  Single voxel proton MR spectroscopy findings of typical and atypical intracranial meningiomas.

Authors:  Mustafa Kemal Demir; A Celal Iplikcioglu; Alp Dincer; Mahmut Arslan; Aydin Sav
Journal:  Eur J Radiol       Date:  2006-07-17       Impact factor: 3.528

10.  Time course of early metabolic changes following diffuse traumatic brain injury in rats as detected by (1)H NMR spectroscopy.

Authors:  José M Pascual; Juan Solivera; Ruth Prieto; Laura Barrios; Pilar López-Larrubia; Sebastian Cerdán; José M Roda
Journal:  J Neurotrauma       Date:  2007-06       Impact factor: 5.269
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  1 in total

Review 1.  Key concepts in MR spectroscopy and practical approaches to gaining biochemical information in children.

Authors:  Loukas G Astrakas; Maria I Argyropoulou
Journal:  Pediatr Radiol       Date:  2016-05-27
  1 in total

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