QMRITools`IVIMTools`
QMRITools`IVIMTools`

FracCorrect

FracCorrect[fraction, time] corrects the signal fraction calculated with the IVIM model for tissue relaxation and acquisition parameters. After correction the signal fraction can be regarded as volume fraction. FracCorrect[{fraction1, fraction2}, time] corrects the signal fraction1 and fraction2 from a 3 compartement IVIM model. time is {{te, tr}, {t2t, t21}, {t1t, t11}} or {{te, tr}, {t2t, t21, t22}, {t1t, t11, t12}}. where t2t and t1t are "tissue" relaxation times and t11 t12, t21 and t22 the "fluid" relaxation times. The te and tr as well as the relaxation times T2 and T1 can be defines in any time unit as long as they are consistant for all, e.g. all in ms. output is the corrected fraction maps.