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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by diaz[/i] [br]I ran 2 subjects yesterday (2-4pm and 4:30-6:30pm). For the first subject the QA mean SFNR values were between 93.3 and 112.1 (mean 103.8). For the second subject the QA mean SFNR values were almost halved, 49-84 (mean 59.4). Both subjects had < 1 voxel of movement in all 3 directions. Does anyone have any thoughts on why there would be such a dramatic decrease after in such a short amount of time? Thanks Michele [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.