Aagesenmcneill6639

Results No significant difference was found in the net optical density and net absorbance of the films irradiated with or without the presence of magnetic field. No dependency on the orientation of the film during irradiation with respect to the magnetic field was observed. The fractionated dose delivery resulted in the same optical density as delivering the whole dose in a single fraction. Conclusions The 0.35 T magnetic field employed in the ViewRay® MR-guided radiotherapy system did not show any significant influence on the response of EBT3 and EBT-XD GafchromicTM films.Purpose Volumetric pancreas segmentation can be used in the diagnosis of pancreatic diseases, the research about diabetes and surgical planning. Since manual delineation is time-consuming and laborious, we develop a deep learning based framework for automatic pancreas segmentation in 3D medical images. Methods A two-stage framework is designed for automatic pancreas delineation. In localization stage, a Square Root Dice loss is developed to handle the trade-off between sensitivity and specificity. In refinement stage, a novel 2.5D slice interaction network with slice correlation module is proposed to capture the non-local cross-slice information at multiple feature levels. Also a self-supervised learning based pre-training method, slice shuffle, is designed to encourage the inter-slice communication. To further improve the accuracy and robustness, ensemble learning and a recurrent refinement process are adopted in the segmentation flow. Results The segmentation technique is validated in a public dataset (NIH Pancreas-CT) with 82 abdominal contrast enhanced 3D CT scans. Four-fold cross-validation is performed to assess the capability and robustness of our method. The Dice similarity coefficient, sensitivity and specificity of our results are 8621±437%, 8749±638% and 8511 ± 649% respectively, which is the state-of-the-art performance in this dataset. Conclusions We proposed an automatic pancreas segmentation framework and validate in an open dataset. It is found that 2.5D network benefits from multi-level slice interaction and suitable self-supervised learning method for pre-training can boost the performance of neural network. This technique could provide new image findings for the routine diagnosis of pancreatic disease.Purpose Vitamin D is primarily known for its role in bone health. However, it has a much more diverse role in the human metabolism. Specifically, deficiency of vitamin D has recently been studied for its possible role in adverse pregnancy outcomes such as preeclampsia, gestational diabetes and preterm birth. Vitamin D levels largely depend on exposure to the sun and are influenced by nutritional habits at only a minimal level. In Switzerland, it is estimated that 40–50% of the population is vitamin D deficient. No specific data on pregnant women is available. The recommendations of the Swiss Federal Commission for Nutrition include a supplement of 600 IU of vitamin D to all pregnant women, despite the lack of data for this population in Switzerland. The primary aim of this study was to determine the prevalence of vitamin D deficiency among the population of pregnant women receiving prenatal care and giving birth at our clinic. We assumed that the prevalence of vitamin D deficiency in pregnant women in Switzerth weight and length. Conclusion We performed a retrospective analysis of serum 25(OH)D concentrations in pregnant Swiss women and found a mean serum 25(OH)D level of about 37 nmol/l and that one third of the overall study population had a serum 25(OH)D level below 25 nmol/l, and were thus seriously vitamin D deficient. Furthermore, the data demonstrate that vitamin D deficiency is associated with gestational diabetes. The current recommendations of vitamin D supplementation of 600 IU in pregnant women are therefore insufficient, and novel strategies, such as general screening for vitamin D deficiency, pre-conceptional timing of the supplementation and individually tailored dosing of vitamin D supplementation seem mandatory, potentially leading to improved maternal health and benefits to children’s long-term health in Switzerland and worldwide. (trial registration ClinicalTrial.gov. Identifier NCT02904720).Malaria due to Plasmodium falciparum (Pf) may be missed if patients present with symptoms outside of the expected incubation period. We describe two patients who developed Pf malaria more than one year after visiting malaria-endemic countries. Both worked at an international airport, but no source of infection was identified.Background The appropriate treatment of alar rim deformities, such as alar pinching or concavity, and soft triangle notching, is essential for perfecting nasal aesthetics. Objective We introduce the "mono-unit alar rim graft" technique as a treatment option for these abnormalities. Methods A case series of 29 rhinoplasties conducted by the senior author between May 2017 and June 2019 using the mono-unit alar rim graft technique was retrospectively reviewed. The surgical technique involved an open approach with costal cartilage harvesting. The cortical portion of the harvested costal cartilage was sectioned into a 1 mm thick strip and soaked with saline for about 15 minutes to let the natural warping occur. The curved cartilage graft was then trimmed, and the midportion was sutured to the tip in an onlay fashion. Both ends of the graft were housed in the vestibular pocket. Patient demographic data and pre- and postoperative facial photos were reviewed. Results Among the 29 cases analyzed, 14 (48.3%) were men and 15 (51.7%) were women. learn more Ten (34.5%) patients had a preoperative parenthesis deformity but a near-complete correction was achieved in 8 (80.0%) cases. An alar concavity from the basal view was found in 16 patients, 15 (93.8%) of whom had a partial or near-complete correction. Eleven patients had soft triangle notching, 9 (81.8%) of whom had a partial or near-complete correction. There were no technique-related complications in this patient series. Conclusions The mono-unit alar rim graft technique is a viable option for treating various alar rim deformities.