OC12.01: Assessment of feto‐placental unit oxygenation in an IUGR rat model using BOLD effect in MRI 4.7T

DP lesions: hyperintense haemorrhagic foci on T1-weighted images, fat-suppressed T1-w, nodules or spiculated hypointense lesions on T2-w and hyperintense foci on T1-w. Deep bowel involvement: hypointense nodule or plaque of bowel wall with contrast enhancement. Adhesions: loss of fat tissue between organs and abnormal angulation of bowel loops. Patients underwent laparoscopic treatment and specimens had pathologic examination. Results: Accuracy for TVS and CE-MR-C respectively: torus uterinus, utero-sacral ligaments: 76%, 75%. Recto-vaginal septum: 80%, 80%. Sigma-rectum: 84%, 96%. One vesico-uterine pouch and three ureteral nodules with concordant diagnosis; one ileal and cecal nodule recognized only by MRI. Pathologic confirmation in all cases. No statistically significant differences were found (P value <0.05). Conclusions: TVS is a powerful tool for preoperative staging of DPE. CE-MR-C could be reserved for cases with deep infiltrating recto-sigmoid lesions to evaluate the grade of stenosis with an ‘X-ray free’ technique and to visualize the involvement of the upper part of colon and small intestine.