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X-ray microcomputed tomography (μCT) was applied in characterizing the internal structures of a number of irradiated materials, including carbon-carbon fibre composites, nuclear-grade graphite and tristructural isotropic-coated fuel particles. Local cracks in carbon-carbon fibre composites associated with their synthesis process were observed with μCT without any destructive sample preparation. Pore analysis of graphite samples was performed quantitatively, and qualitative analysis of pore distribution was accomplished. It was also shown that high-resolution μCT can be used to probe internal layer defects of tristructural isotropic-coated fuel particles to elucidate the resulting high release of radioisotopes. Layer defects of sizes ranging from 1 to 5 μm and up could be isolated by tomography. As an added advantage, μCT could also be used to identify regions with high densities of radioisotopes to determine the proper plane and orientation of particle mounting for further analytical characterization, such as materialographic sectioning followed by optical and electron microscopy. In fully ceramic matrix fuel forms, despite the highly absorbing matrix, characterization of tristructural isotropic-coated particles embedded in a silicon carbide matrix was accomplished using μCT and related advanced image analysis techniques. [ABSTRACT FROM AUTHOR]

VP03.16: A comparison between ultrasound and MRI for endometrial cancer staging: retrospective study in Hospital Garcia de Orta (2019-2021) There were no statistically significant association between MRI or TVS and intra-operative frozen section findings or final surgical staging (p>0.05 Cohen's Kappa) with a tendency for upstaging patients preoperatively. To compare magnetic resonance imaging (MRI) with transvaginal sonography (TVS) staging of endometrial carcinoma (histological type endometrioid). [Extracted from the article]

The aim of the present study was to determine preoperative demographic and transvaginal ultrasound features that can predict the risk of endometrial cancer (EC) in women with endometrial intraepithelial neoplasia (EIN). 24 patients (66,7%) had the final diagnosis of EC and 10 (27,8%) were diagnosed with EIN. The mean age of patients diagnosed with EC was 64,8 years (SD = 9.9) compared to 59,8 years (SD = 8,6) of those with EIN/benign conditions. [Extracted from the article]