Proton magnetic resonance spectroscopy of small regions (1 mL) localized inside superficial human tumors. A clinical feasibility study

Peter C.M. van Zijl, Chrit T.W. Moonen, Joe Gillen, Peter F. Daly, Linda S. Miketic, Joseph A. Frank, Thomas F. Delaney, Ofer Kaplan, Jack S. Cohen

Research output: Contribution to journalArticle

Abstract

It is demonstrated that the stimulated echo technique for proton magnetic resonance spectroscopy (MRS) can be used to study metabolites in volumes of interest (VOls) as small as 1 mL localized within superficial human tumors. Access to these small VOls is important for characterization of tissue regions within a tumor, before, during and after treatment. Spectral appearance resembles that from studies on extracts, and cell suspensions and perfused cells of several tumor types. For the first time proton MRS was used to study cancer treatment in vivo in humans, for a case of radiation treatment of squamous cell carcinoma. No spectral evidence of changed metabolism prior to reduction in tumor size was found. However, after the first period of radiation (39 Gy, 4 weeks), complete disappearance of the metabolite resonances from the spectrum was observed, while a considerable mass still remained, suggesting effective cell destruction upon treatment. Needle aspiration cytology of this mass showed absence of malignant cells, supporting this result.

Original languageEnglish (US)
Pages (from-to)227-232
Number of pages6
JournalNMR in biomedicine
Volume3
Issue number5
DOIs
StatePublished - Oct 1990
Externally publishedYes

ASJC Scopus subject areas

  • Molecular Medicine
  • Radiology Nuclear Medicine and imaging
  • Spectroscopy

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