Temperature mapping using the water proton chemical shift: Self- referenced method with echo-planar spectroscopic imaging

Kagayaki Kuroda, R. V. Mulkern, K. Oshio, L. P. Panych, T. Nakai, T. Moriya, S. Okuda, K. Hynynen, F. A. Joles

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

An echo-planar spectroscopic imaging method of temperature mapping is proposed. This method is sufficiently faster than the so-called 3D magnetic resonance spectroscopic imaging (3D-MRSI) method and does not require image subtractions, unlike the conventional phase mapping method when an internal reference signal is detectable. The water proton chemical shift measured by using the tissue lipid as an internal reference clearly visualized the temperature change in a porcine liver sample in vitro. It was also demonstrated that the internally referenced echo-planar spectroscopic imaging method could markedly reduce a temperature error caused by a simple, translational motion between scans compared with the phase-mapping method. (C) 2000 Wiley-Liss, Inc.

Original languageEnglish
Pages (from-to)220-225
Number of pages6
JournalMagnetic Resonance in Medicine
Volume43
Issue number2
DOIs
Publication statusPublished - 2000 Feb 12
Externally publishedYes

Keywords

  • Chemical shift
  • Echo-planar spectroscopic imaging (EPSI)
  • Internal reference
  • Temperature

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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