Quantitation of automated single-voxel proton MRS using cerebral water as an internal reference.
Journal Article (Journal Article)
Data from a previously published, multi-site trial (P.G. Webb, N. Sailasuta, S.J. Kohler, T. Raidy, R.A. Moats, R.E. Hurd. Automated single-voxel proton MRS: technical development and multisite verification. Magn. Reson. Med. 31, 365-373 (1994)) of a fully automatic, single-voxel, proton spectroscopy package (PROBE/SV, GE Medical Systems) was re-analyzed in terms of absolute metabolite concentrations using the cerebral water signal as an internal reference. In 100 spectra from parietal white matter in normal volunteers ranging in age from 22 to 34 years at eight sites, overall concentrations of choline (Cho) creatine (Cr), and N-acetyl-aspartate (NAA) resonances were found to be 2.00 +/- 0.50, 8.43 +/- 1.28, and 12.55 +/- 1.76 mumol/g wet weight, respectively. These values are in good general agreement with previously published values from quantitative, single-voxel studies. Metabolite concentrations for NAA, Cr, and Cho across all sites had standard deviations of 14.1%, 14.9%, and 25.1%, respectively. Quantitation of PROBE data sets is routinely possible by using the cerebral water signal as an internal reference.
Full Text
Duke Authors
Cited Authors
- Soher, BJ; Hurd, RE; Sailasuta, N; Barker, PB
Published Date
- September 1996
Published In
Volume / Issue
- 36 / 3
Start / End Page
- 335 - 339
PubMed ID
- 8875401
International Standard Serial Number (ISSN)
- 0740-3194
Digital Object Identifier (DOI)
- 10.1002/mrm.1910360302
Language
- eng
Conference Location
- United States