ABSTRACT
Objective ToinvestigatethevalueofpreoperativeMRIforplacentapreviainpredictionofmassivepostpartumhemorrhage. Methods AretrospectiveanalysisoftheclinicalhistoryandprenatalMRIfeaturesof362patientswithplacentapreviawereperformed. Ofthese,54casesexperiencedseverepostpartum hemorrhage.Results Univariateanalysisshowedthattheageofpregnantwomen (χ2＝3.951,P＝0.047),gestationalage(χ2＝6.257,P＝0.012),numberofcesareansections(χ2＝36.372,P＝0.001)andgemellary pregnancy(χ2＝7.933,P＝0.005)wereassociated with massivepostpartum hemorrhage.Amongthe MRIsigns,Uterinebulging (OR,46.712;95%CI,13.067－166.987),placentalprotrusionsign (OR,22.787;95% CI,4.595－113),andintroplacentalT2dark band(OR,14.757;95%CI,7.149－30.461)indicatedhighriskwithmassivepostpartumhemorrhage.Myometrialthinningorlocalized interruption,unevenplacentalsignal,abnormalbloodvesselsbelowtheplacenta,abundantbloodvesselsinloweruterusandcervix, cervicalshorteningandothersignsfortheevaluationofseverepostpartumhemorrhagewerealsostatisticallysignificant.Conclusion MRIcanpredictmostoftheseverepostpartumhemorrhagebeforesurgeryandisveryhelpfultoimprovethepatientprognosis.
ABSTRACT
Objective To evaluate the value of diffusion weighted imaging in differential diagnosis of endometrial carcinoma stagedⅠa.Methods A retrospective analysis of 18 patients with endometrial carcinoma staged Ⅰ a which was confirmed by pathology. Other 22 patients with benign endometrial diseases were also enrolled in the study including endometrial hyperplasia in 9,endometrial polyp in 8 and degenerative submucous myoma in 5.DWI with b value of 0 s/mm2 and 1 000 s/mm2 was performed with single shot sequence of EPI,and the ADC values were measured.Results The mean ADC values of endometrial carcinoma staged Ⅰa,endome-trial hyperplasia,endometrial polyp and degenerative submucous myoma were (0.89±0.21)×10 -3 mm2/s,(1.45±0.19)×10 -3 mm2/s, (1.29±0.32)×10 -3 mm2/s and (1.32 ±0.29)× 10 -3 mm2/s,respectively.There were statistical significant differences between them (F =48.021,P =0.00).Furthermore,statistically significant differences also existed between endometrial carcinoma and other groups (P <0.05).Conclusion ADC value shows a good value in differential diagnosis of endometrial carcinoma staged Ⅰa.