Musculoskeletal tumors: Use of proton MR spectroscopic imaging for characterization
نویسندگان
چکیده
منابع مشابه
Reproducibility of proton MR spectroscopic imaging findings.
PURPOSE To study the intraindividual, interindividual, and intraregional reproducibility of multisection proton MR spectroscopic imaging in healthy adults. METHODS Six subjects were studied three times with proton MR spectroscopic imaging. Multisection long-echo-time proton MR spectroscopic imaging permits simultaneous acquisition of N-acetylaspartate (NAA), choline-containing compounds (Cho)...
متن کاملProton MR spectroscopic imaging without water suppression.
To improve reproducibility in proton magnetic resonance (MR) spectroscopic imaging in human brain, simultaneous acquisition of the internal water reference and metabolite signals was evaluated. Measurements in healthy volunteers showed that the increase in dynamic range from signal oversampling was sufficient to avoid digitization errors. In addition, use of singular value decomposition techniq...
متن کاملMR imaging and proton MR spectroscopic studies in Sjögren-Larsson syndrome: characterization of the leukoencephalopathy.
BACKGROUND AND PURPOSE Sjögren-Larsson syndrome (SLS) is a neurocutaneous syndrome caused by a genetic enzyme deficiency in lipid metabolism. Our purpose was to characterize the nature of the cerebral involvement in SLS. METHODS MR imaging was performed in 18 patients (aged 5 months to 45 years) and repeated in 14. Single-voxel proton MR spectra were acquired from cerebral white matter and gr...
متن کاملPreoperative proton MR spectroscopic imaging of brain tumors: correlation with histopathologic analysis of resection specimens.
BACKGROUND AND PURPOSE Tumor progression is often difficult to distinguish from nonneoplastic treatment response on the basis of MR images alone. This study correlates metabolite levels measured by preoperative MR spectroscopic (MRS) imaging with histologic findings of biopsies, obtained during image-guided resections of brain mass lesions, to clarify the potential role of MRS in making this di...
متن کاملIn-vivo Proton MR Spectroscopic Imaging of Glycine in Brain Tumors at 3.0 T
INTRODUCTION Recent studies have shown that abnormal glycine (Gly) levels are implicated in several brain disorders, in particular, malignant tumors [1-3]. Most of in-vivo Gly detection relied on single-voxel spectroscopy, which does not provide regional distribution of the metabolite. We report spectroscopic imaging (SI) of Gly in brain tumors using a PRESS based method with an optimized echo ...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2005
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.20448