Resolution enhanced NMR spectroscopy in biological systems via magnetic susceptibility matched sample immersion chambers.

TitleResolution enhanced NMR spectroscopy in biological systems via magnetic susceptibility matched sample immersion chambers.
Publication TypeJournal Article
Year of Publication1993
AuthorsBalloon D, Mahmood U, Jakubowski A, Koutcher JA
JournalMagn Reson Med
Volume30
Issue6
Pagination754-8
Date Published1993 Dec
ISSN0740-3194
KeywordsAnimals, Fibrosarcoma, Leukemia, Experimental, Magnetic Resonance Spectroscopy, Mammary Neoplasms, Experimental, Mice, Mice, Inbred C3H, Tumor Cells, Cultured
Abstract

A technique is described which reduced the magnetic susceptibility induced line broadening in NMR spectra obtained from three biological systems at 4.7 Tesla. Proton spectra from a sealed suspension of HL60 leukemic myeloblasts yielded minimum linewidths of 1.3 Hz at 200 MHz (0.0065 ppm) after 10 min of automated shimming. 31P spectra from an in vivo murine MCa mammary carcinoma yielded a well-resolved phosphorylcholine resonance without proton decoupling and with the resistive shim coil currents set to zero. 31P spectra from a perfused suspension of RIF-1 fibrosarcoma cells exhibited a gamma-nucleoside triphosphate resonance which was resolved into purine and pyrimidine components.

DOI10.1002/mrm.1910300615
Alternate JournalMagn Reson Med
PubMed ID8139459
Grant ListCA 25842 / CA / NCI NIH HHS / United States
CM-87215-18 / CM / NCI NIH HHS / United States
Related Institute: 
MRI Research Institute (MRIRI)

Weill Cornell Medicine
Department of Radiology
525 East 68th Street New York, NY 10065