On the first day, the T1 values of all tissues were similar. For these conditions, the mathematical expression for the SE sequence signal indicates that the contrast between tissues should be small. Thiswas verified by putting the T1, T2 and proton density measured in different tissues into the expression for the SE sequence signal (Collewet et al., 2002).Onthe lastday, the T1 of the locular tissue had not change significantly fromits initial value and the T1 of the other tissues decreased considerably (see Fig. 5). Itwas thus expected that the signals from the placenta and outer pericarp would become stronger than the signal from the locular tissue.