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. 2012 Mar;17(3):242–247.

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Copyright: © Journal of Research in Medical Sciences

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fusion of SPECT and MRI in tinnitus-related brain abnormalities in one subject. ROIs were used for semi-quantitative analysis of hyperactivity. (a, b) Abnormalities in inferotemporal gyrus. Hyperactive areas are shown red with BrainAFICS software. Hyperactivity of brain was defined visually and semi-quantitatively analysis. Activity ratio was calculated as follow; for unilaterally involved subjects; after localized abnormal area visually, ROIs were drawn and the count per voxel were compared with the ROIs in the other side or beside. In bilaterally involved subjects; count per voxel of the abnormal areas were compared with similar ROIs on cerebellum (as reference)