Fat suppression techniques in MR imaging of mature ovarian teratomas: comparison with CT

Abstract Objective: The aim of this study is to analyze the ability of MR fat suppression techniques to characterize fat components of ovarian mature cystic teratomas (MCT) shown by CT. Subjects and methods: MR images of eight MCTs of the ovary were obtained using standard sequences followed by a SPIR (spectral presaturation with inversion recovery) sequence in six cases and by Dixon sequences in two cases. In all cases correlation with CT and pathologic findings was achieved. Results: MR fat suppression sequences showed to be as accurate as CT in detecting fat inside the cystic part of the teratomas (88). Conclusion: MR fat suppression sequences should be performed when presence of fat is suspected on images of ovarian tumors produced by standard MR sequences.