[IEEE 2016 23rd Iranian Conference on Biomedical Engineering and 2016 1st International Iranian Conference on Biomedical Engineering (ICBME) - Tehran, Iran (2016.11.24-2016.11.25)] 2016 23rd Iranian Conference on Biomedical Engineering and 2016 1st International Iranian Conference on Biomedical Engineering (ICBME) - Brain segmentation is more accurate if scan time is optimized for quantitative rather than conventional magnetic resonance imaging