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The purpose of this study is to know the differences of metabolism in abnormal brain disease using a single-voxel proton MR spectroscopy(1H MRS) Together with five normal volunteers and each five patients with brain diseases, pathologically proved, underwent MRI and 1H MRS. The quantitative results of 1H MRS in adrenoleukodystrophy(ALD), hepatic encephalopathy(HE), and infarction gave unique information on the metabolite changes related with the white matter: the concentration of NAA decreased in all diseases; Cho, mI and Lac increased in ALD; Cho decreased in HE; and β․γ-Glx and Lac increased in infarction.It is concluded that 1H MRS is capable of diagnosing brain diseases by monitoring metabolite changes in vivo that subsequently develope into abnormalities. 1H MRS may be a useful clinical tool for in both diagnosis and prognosis of brain diseases. Key words: MR spectroscopy, brain diseases, cerebral metabolites                   .      , ,      .   NAA  , ALD Cho, mI  Lac ,  Cho ,   β․γ-Glx Lac .                     .

A Study on the Metabolite Changes in Brain Diseases: 3 Teslar 1H Magnetic Resonance Spectroscopy