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Reversion of severe hepatopulmonary syndrome in a non cirrhotic patient after corticosteroid treatment for granulomatous hepatitis:A case report and review of the literature

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World Journal of Gastroenterology 2006年第2期12卷 336-339页

作者： nikolaos tzovaras Aggelos Stefos Sarah P Georgiadou nikolaos Gatselis Georgia Papadamou Eirini Rigopoulou Maria Ioannou Ioannis Skoularigis Georgios N Dalekos Department of Medicine Academic Liver UnitMedical SchoolUniversity of Thessaly41222 LarissaGreece Department of Pathology Medical SchoolUniversity of Thessaly41222 LarissaGreece Division of Cardiology Medical SchoolUniversity of Thessaly41222 LarissaGreece

Hepatopulmonary syndrome （HPS） is defined as a clinical triad including liver disease, abnormal pulmonary gas exchange and evidence of intrapulmonary vascular dilatations. We report a 61-year-old male presented with fatigue, long-lasting fever, loss of weight, signs of portal hypertension, hepatosplenomegaly, cholestasis and progressive dyspnoea over the last year. Clinical, laboratory and histological findings confirmed the diagnosis of granulomatous hepatitis. HPS due to hepatic granulomainduced portal hypertension was proved to be the cause of severe hypoxemia of the patient as confirmed by contrast-enhanced echocardiography. Reversion of HPS after corticosteroid therapy was confirmed by a new contrastenhanced echocardiography along with the normalization of cholestatic enzymes and improvement of the patient＇ s conditions. This is the first case of complete reversion of HPS in a non-cirrhotic patient with hepatic granuloma, indicating that intrapulmonary shunt in liver diseases is a functional phenomenon and HPS can be developed even in miscellaneous liver involvement as in this case.

关键词： Hepatopulmonary syndrome Granulomatous hepatitis Liver cirrhosis Orthodeoxia Platypnoea

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A framework for inspection of dies attachment on PCB utilizing machine learning techniques

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Journal of Management Analytics 2018年第2期5卷 81-94页

作者： Thanasis Vafeiadis nikolaos Dimitriou Dimosthenis Ioannidis Tracy Wotherspoon Gregory Tinker Dimitrios tzovaras Information Technologies Institute(ITI) CERTHThessalonikiGreece MICROSEMI Semiconductor Limited GwentUK

Decision Support Systems are considered as a robust technology able to provide an advantage to several manufacturing *** part of the Z-Fact0r EU project Early Stage-Decision Support System,a framework for the inspection of a printed circuit boards(PCB)and the inference of faults,regarding the excess or insufficient glue,is *** the inspection of the PCB,a pixel-based vector of the regions of interest is utilized and several very popular in research community machine learning algorithms are tested on their performance on fault *** order to determine the most efficient and effective classifier,a schema of Monte Carlo simulations for each classification algorithm and set of hyper-parameters was *** results show a superiority of the support vector machine(SVM)classifier with polynomial and radial basis function kernels,compared to the *** best overall classifier was the SVM polynomial(accuracy:81.39%,f-measure:78.72%).

关键词： PCB image processing feature extraction machine learning Monte Carlo

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