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

H. S. Liu, 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, Cheng Yu Chen

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3 引文 斯高帕斯(Scopus)

摘要

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 1H 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.
原文英語
頁(從 - 到)1644-1648
頁數5
期刊American Journal of Neuroradiology
29
發行號9
DOIs
出版狀態已發佈 - 十月 2008
對外發佈Yes

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging

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