Metabolic syndrome — a new definition and management guidelines

The joint position paper by Polish Society of Hypertension, Polish Society for the Treatment of Obesity, Polish Lipid Association, Polish Association for Study of Liver, Polish Society of Family Medicine, Polish Society of Lifestyle Medicine, Division of Prevention and Epidemiology Polish Cardiac Society, “Club 30” Polish Cardiac Society, and Division of Metabolic and Bariatric Surgery Society of Polish Surgeons Reviewers: Agnieszka Olszanecka, Krzysztof J. Filipia

The Liver Tumor Segmentation Benchmark (LiTS)

In this work, we report the set-up and results of the Liver Tumor Segmentation Benchmark (LITS) organized in conjunction with the IEEE International Symposium on Biomedical Imaging (ISBI) 2016 and International Conference On Medical Image Computing Computer Assisted Intervention (MICCAI) 2017. Twenty four valid state-of-the-art liver and liver tumor segmentation algorithms were applied to a set of 131 computed tomography (CT) volumes with different types of tumor contrast levels (hyper-/hypo-intense), abnormalities in tissues (metastasectomie) size and varying amount of lesions. The submitted algorithms have been tested on 70 undisclosed volumes. The dataset is created in collaboration with seven hospitals and research institutions and manually reviewed by independent three radiologists. We found that not a single algorithm performed best for liver and tumors. The best liver segmentation algorithm achieved a Dice score of 0.96(MICCAI) whereas for tumor segmentation the best algorithm evaluated at 0.67(ISBI) and 0.70(MICCAI). The LITS image data and manual annotations continue to be publicly available through an online evaluation system as an ongoing benchmarking resource.Comment: conferenc

Application of Ti6Al7Nb Alloy for the Manufacture of Biomechanical Functional Structures (BFS) for Custom-Made Bone Implants

Unlike conventional manufacturing techniques, additive manufacturing (AM) can form objects of complex shape and geometry in an almost unrestricted manner. AM’s advantages include higher control of local process parameters and a possibility to use two or more various materials during manufacture. In this work, we applied one of AM technologies, selective laser melting, using Ti6Al7Nb alloy to produce biomedical functional structures (BFS) in the form of bone implants. Five types of BFS structures (A1, A2, A3, B, C) were manufactured for the research. The aim of this study was to investigate such technological aspects as architecture, manufacturing methods, process parameters, surface modification, and to compare them with such functional properties such as accuracy, mechanical, and biological in manufactured implants. Initial in vitro studies were performed using osteoblast cell line hFOB 1.19 (ATCC CRL-11372) (American Type Culture Collection). The results of the presented study confirm high applicative potential of AM to produce bone implants of high accuracy and geometric complexity, displaying desired mechanical properties. The experimental tests, as well as geometrical accuracy analysis, showed that the square shaped (A3) BFS structures were characterized by the lowest deviation range and smallestanisotropy of mechanical properties. Moreover, cell culture experiments performed in this study proved that the designed and obtained implant’s internal porosity (A3) enhances the growth of bone cells (osteoblasts) and can obtain predesigned biomechanical characteristics comparable to those of the bone tissue

Distributed Scheduling for Disconnected Cooperation

This dissertation studies a cooperation problem where a system of distributed asynchronous devices, that can be disconnected for long and unknown periods, must e#ciently perform a set of task

Reverse engineering technology for forensic use

W artykule przedstawiono możliwości zastosowania metod inżynierii odwrotnej w kryminalistyce. Dokonano przeglądu dostępnych technologii reverse engineering oraz podano przykłady ich wykorzystania we wspomaganiu czynności kryminalistycznych. Przedstawiono metodę rekonstrukcji obiektów za pomocą technicznej tomografii komputerowej oraz podano przykład zastosowania tej metody do analizy geometrii łusek pochodzących od odstrzelonych nabojów pistoletowych kal. 7,62 mm wz. 30 (powystrzałowych kalibru 7,62 mm).The paper presents the possibility of using reverse engineering in forensic science. Available reverse engineering technologies and examples of their use as a helpful forensic research tool are reviewed. A method of reconstruction of objects using computed tomography technology was described, as well as an example the application of this method to the analysis of the geometry of ignited 7.62 mm calibre model 30 pistol cartridge shells (7.62 mm calibre projectile)