Poster discussion hub abstracts 80.0%, 33.3%, 98.2%. When combined the two cut-off point to predict uterine defects, the Sensitivity, specificity, positive predictive value, negative predictive value was 93.3%, 72.4%, 21.2%, 99.3%. Conclusions: Combined the thinnest thickness of the lower uterine segment and the ratio could obviously increase the accuracy of the prediction of uterine defects by performing the automated volume scanner. The automated volume scanner is good means to evaluate the thickness of lower uterine segment. Objectives: To assess the potential of quantitative analysis of contrast-enhanced ultrasound (CEUS), using a microbubble contrast agent, in the evaluation of postnatal placental accreta. Methods: 34 patients suspected for postnatal placenta invasion were examined by gray-scale, colour Doppler ultrasound and CEUS. Quantitative analysis was performed to investigate the microvascular perfusion and enhanced features of the lesions and myometrium. The Peak intensity (PI), Arriving time (AT), Rise time (RT) Time To Peak Intensity (TTP), Mean transit time (MTT) and the Wash in slope (WIS) were derived from time-intensity curves.The PI, AT, RT, TTP, MTT and the WIS of enhanced lesions were compared with those of the normal myometrium. Results: The serous layer, lesions, adjacent myometrium and the normal myometrium enhanced in turn. There was no obvious boundary between the lesions and adjacent myometrium. The lesions showed higher enhancement than the normal myometrium. Part of the lesions never enhanced during the whole process. The MTT of the lesions was longer than that of the normal myometrium (P < 005). The PI and WIS of the lesions were higher than those of the normal myometrium (P < 005). Between the lesions and the normal myometrium, no statistically significant difference was found in AT, RT and TTP (P > 0.05). Conclusions: Based on quantitative analysis, CEUS may be a potentially useful tool in assessment of the perfusion of the postal placenta accreta to help the obstetricians to make clinical treatment strategies. P05.03 Ischemia modified albumin in pregnancyObjectives: In normal pregnancies, a hypoxic intrauterine environment seems necessary for the early trophoblast development. In this context, mother's serum levels of ischemia modified albumin (IMA) are elevated reflecting the oxidative stress associated with placental development.The aim of this study is to evaluate serum levels of IMA and pregnancy associated plasma protein-A (PAPP-A) in mothers bearing small-for-gestational age (SGA) fetuses compared to normal pregnancies. Methods: A prospective study was performed between June 2013 and May 2014. Serum total albumin, IMA and PAPP-A concentrations were determined in 81 pregnant women in 3 different periods: 1st trimester, 2nd trimester and in the postpartum.Two groups of subjects were identified: group 1) mothers bearing appropriate-for-gestational-age fetuses (AGA) and group 2) mothers bearing SGA fetuses. Serum total albumin and IMA concentrations were determined in 198 non-p...
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