Single-voxel proton spectroscopy using a press sequence with a 135 ms echotime: normal values |
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| Authors: | Vion-Dury J Michotey P |
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| Affiliation: | 1 Service de Neurophysiologie Clinique, Hôpital de la Conception, 13005 Marseille, et Institut des Neurosciences Cognitives de la Méditerranée (UMR-CNRS 6193), Chemin Joseph Aiguier, 13009 Marseille
2 Fondation Hôpital Ambroise Paré, 1 rue d’Eylau, 13006 Marseille |
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| Abstract: | The clinical value of MR spectroscopy is now well established and this technique has been added to the current French classification of medical acts (CCAM). This paper presents a set of normal control values for 3 metabolite ratios obtained using a PRESS sequence with a TE of 135 ms at 1.5T: NAA/Cho, NAA/Cr and Cho/CR. Spectroscopy data acquisition were obtained from the following 12 anatomical regions: parieto-occipital white matter, centrum semiovale, frontal white matter, thalamus, basal ganglia, cerebellum (hemisphere, including dentate nucleus), brain stem (including pons, medulla and midbrain), anterior and posterior temporal lobe, parietal, occipital and pre-frontal cortices. The presented data allow radiologists equipped with a similar MR system to implement a clinical spectroscopy program without undergoing research protocols in order to obtain control values. |
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