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Biochemical heterogeneity in hysterectomized uterus measured by 31 P NMR using SLIM localization
Author(s) -
Xu Su,
Yang Yihong,
Gregory Carl D.,
Vary Jay C.,
Liang ZhiPei,
Dawson M. Joan
Publication year - 1997
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910370516
Subject(s) - myometrium , nuclear magnetic resonance , uterus , chemistry , magnetic resonance imaging , nuclear magnetic resonance spectroscopy , spectroscopy , imaging phantom , ultrasound , hysterectomy , nuclear medicine , medicine , pathology , radiology , physics , quantum mechanics
Ultrasound and magnetic resonance imaging show contrast between the inner and outer myometrium, which is useful in the diagnosis of gynecological disorders. To determine whether the image contrast is associated with biochemical differences between these myometrial regions, phosphorus metabolite concentrations in the inner one third of the myometrium (the junctional zone; JZ) were compared with the outermost one third of the myometrium (OM) in hysterectomized uteri using 31 P spectral localization by imaging (SLIM). The technique was validated by comparing the results of SLIM with the results of standard Fourier‐encoded spectroscopic imaging (FSI) analysis using phantoms, and by nonlocalized spectroscopy on biopsies taken from the same hysterectomy specimens. As expected theoretically, SLIM yielded better localization than FSI, as judged by spectral intensity and leakage measurements on phantom compartments of known composition. SLIM localization revealed that the JZ has a higher intracellular phosphomonoester (PME) concentration than does the OM, which was confirmed by nonlocalized spectroscopy, and that there is very little NMR‐visible phosphorus in the cervix.