1,298 research outputs found

    Spatio-temporal image correlation (STIC) in evaluation of advanced neuroendocrine tumours

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    Introduction: 4D Ultrasound technology merging the Power Doppler option called High-Definition Flow (HDF) with Spatio-Temporal Image Correlation (STIC) is used in gynaecology and obstetrics. It seems to be a promising tool in assessing tissue vascularisation. The aim of the paper was to assess whether HDF STIC technique could be a useful tool for the evaluation of gastro-entero-pancreatic neuroendocrine neoplasm (GEP-NEN) advancement. Material and methods: Forty-eight patients [mean age 57.7 ± 10.3 years; male 40.9% (n = 18)] diagnosed with metastatic GEP-NENs were included in the analysis. All subjects were enrolled in the Department of Endocrinology and Neuroendocrine Tumours, Medical University of Silesia, Katowice. We analysed liver metastases. Patients with G3 grading or faintly vascularised lesions were excluded. HDF STIC volumes were acquired during USG examination. 4D indices [volumetric pulsatility index (vPI) and volumetric systolic/diastolic index (vS/D)] were calculated using dedicated software. Results: There were no correlations between vS/D and Ki-67 [p = 0.67; r = –0.19; (–0.28–0.19)], CgA [p = 0.47; r = –0.11; (–0.38–0,19)], 5-HIAA [p = 0.52; r = –0.09 (–0.37–0.2)], serotonin [p = 0.83; r = –0.03 (–0.32–0.26)], and VCAM-1 (p = 0.62; r = 0.09 (–03–0.47)]. The were no correlations between vPI and Ki-67 [p = 0.29; r = –0.16 (–0.45–0.14)], CgA (p = 0.46; r = –0.11 (–0.39–0.19)], 5-HIAA [p = 0.52; r = –0.09 (–0.37–0.2)], serotonin [p = 0.82; r = –0.03 (–0.32–0.26)], and VCAM-1 (p = 0.62; r = –0.09 (–03–0.47)]. There was no significant difference between carcinoid versus non-carcinoid patients if compared by vS/D and vPI (p = 0.62, p = 0.61, respectively). Conclusions: HDF STIC seems not to be an efficient marker to assess advancement of NENs, due to lack of correlation with widely used and approved markers of progression.

    THE ROLE OF HORMONES AND INFLAMMATORY MARKERS IN COGNITIVE FUNCTIONING OF SCHIZOPHRENIC PATIENTS

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    Background: In the literature we can find evidence that immunological processes are involved the alterations of cognition in schizophrenic patients. Another factor, which may have an impact on cognitive domains in this clinical group are hormones. Objective: The objective of this review was to explore studies, in which the role of both immunological and endocrine factors on cognitive functions in schizophrenia are analyzed. Methods: The search of papers covering this topic in PubMed and Google Scholar was performed. Results: The studies focusing on this co-relation are not numerous. The role such hormones like cortisol, insulin and sex hormones may be important in the immunomodulatory processes influencing cognition in schizophrenia. Conclusions: More studies are necessary to confirm these possible co-relations

    THE ROLE OF HORMONES AND INFLAMMATORY MARKERS IN COGNITIVE FUNCTIONING OF SCHIZOPHRENIC PATIENTS

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    Background: In the literature we can find evidence that immunological processes are involved the alterations of cognition in schizophrenic patients. Another factor, which may have an impact on cognitive domains in this clinical group are hormones. Objective: The objective of this review was to explore studies, in which the role of both immunological and endocrine factors on cognitive functions in schizophrenia are analyzed. Methods: The search of papers covering this topic in PubMed and Google Scholar was performed. Results: The studies focusing on this co-relation are not numerous. The role such hormones like cortisol, insulin and sex hormones may be important in the immunomodulatory processes influencing cognition in schizophrenia. Conclusions: More studies are necessary to confirm these possible co-relations

    TELEPSYCHIATRY AND VIRTUAL REALITY IN THE TEATMENT OF PATIENTS WITH INTELLECTUAL AND DEVELOPMENTAL DISABILITIES

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    Background: Treatment and rehabilitation of people with intellectual and developmental disabilities is a multidisciplinary challenge, which require implementing new attitudes. The use of modern technology solutions like telepsychiatry or virtual reality may be a valuable addition to the traditional methods. Objective: The objective of this review was to explore the usability of new technological solutions in this special population of patients. Methods: The search in the PubMed was conducted using the following terms: (intellectual disability (Title/Abstract) OR developmental disability OR learning disorder (Title/Abstract)) AND virtual reality (Title/Abstract) OR telepsychiatry OR telemedicine OR e-mental health AND English (lang) AND (1995/01/01(PDAT): 2017/07/31(PDAT)). Results: Telepsychiatry may be a useful tool in situations, when the direct access to professional assistance is limited, in solving particular problems like e.g. managing challenging behavior, also to support patients’ parents and for diagnostic and educational purposes. Virtual reality can be a safe and effective method of improving different skills, developing physical fitness, and enriching the ways of spending the leisure time. Conclusions: Using modern technology is a relatively new and promising field in which new ideas may develop to support the already existing services for patients with intellectual and developmental disabilities

    TELEPSYCHIATRY AND VIRTUAL REALITY IN THE TEATMENT OF PATIENTS WITH INTELLECTUAL AND DEVELOPMENTAL DISABILITIES

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    Background: Treatment and rehabilitation of people with intellectual and developmental disabilities is a multidisciplinary challenge, which require implementing new attitudes. The use of modern technology solutions like telepsychiatry or virtual reality may be a valuable addition to the traditional methods. Objective: The objective of this review was to explore the usability of new technological solutions in this special population of patients. Methods: The search in the PubMed was conducted using the following terms: (intellectual disability (Title/Abstract) OR developmental disability OR learning disorder (Title/Abstract)) AND virtual reality (Title/Abstract) OR telepsychiatry OR telemedicine OR e-mental health AND English (lang) AND (1995/01/01(PDAT): 2017/07/31(PDAT)). Results: Telepsychiatry may be a useful tool in situations, when the direct access to professional assistance is limited, in solving particular problems like e.g. managing challenging behavior, also to support patients’ parents and for diagnostic and educational purposes. Virtual reality can be a safe and effective method of improving different skills, developing physical fitness, and enriching the ways of spending the leisure time. Conclusions: Using modern technology is a relatively new and promising field in which new ideas may develop to support the already existing services for patients with intellectual and developmental disabilities

    Long term outcomes in diabetic patients treated with atherectomy for peripheral artery disease

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    Background: The prevalence of diabetes has increased significantly in well-developed countries during the last decade and it continues to grow. Diabetes increases the risk of restenosis in patients treated percutaneously for peripheral artery disease. The present study sought to compare outcomes of atherectomy treatment in diabetic (DM) vs. non-diabetic (nDM) patients suffering from peripheral artery disease.Method: Between 2008 and 2012, 204 revascularization atherectomy procedures were performed on arteries of the lower extremities. The endpoints included target lesion revascularization (TLR), amputation and death. The type of atherectomy (excisional-soft plaque, orbital-calcified plaque, with active aspiration — with a thrombus) was left to operator discretion.Results: This study contains 132 DM (66% male, age 68 ± 11.2 years) and 72 nDM (63% male, age 75 ± 11.3 years) subjects. DM were younger but had a higher prevalence of coronary artery disease (DM: 91% vs. nDM: 62%, p < 0.0001) and end-stage renal disease (DM: 22% vs. nDM: 2.5%, p < 0.0001). There were no differences in critical limb ischemia between the groups (DM: 21% vs. nDM: 12%, p = = 0.13). Mean time of follow-up was 384 and 411 days in DM and nDM, respectively (p = 0.43). There were no significant differences in TLR (DM: 15.2% vs. nDM: 22.2%, p = 0.249), amputations (DM: 3.0% vs. nDM: 1.5%, p = NS) or death rates (DM: 2.2% vs. nDM: 2.7%, p = NS). Kaplan-Mayer analysis showed no significant differences between the groups in the time to TLR, amputation or death.Conclusions: Plaque modification with adjusted atherectomy appears to have similar outcomes indiabetic as well as in non-diabetic patients. Nonetheless, a randomized study would be warranted toconfirm the findings of the current study

    Comparable vascular response of a new generation sirolimus eluting stents when compared to fluoropolymer everolimus eluting stents in the porcine coronary restenosis model

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    Background: Novel sirolimus eluting stents (SES) have shown non-inferior clinical outcomes when compared to everolimus eluting stents (EES), however only limited preclinical data have been published. Therefore, we evaluate vascular response of a new generation biodegradable polymer SES (BP-SES: Alex Plus, Balton) and fluoropolymer EES (EES: Xience Pro, Abbott) in the porcine coronary restenosis model.Methods: A total of 40 stents were implanted with 120% overstretch in coronaries of 17 domestic swine: 16 BP-SES, 16 EES and 8 bare metal controls (BMS). Following 28 and 90 days, coronary angiography and optical coherence tomography (OCT) was performed, animals sacrificed and stented segments harvested for pathological evaluation.Results: At 28 days neointimal thickness in OCT was lowest in the BP-SES when compared to EES and BMS (0.18 ± 0.1 vs. 0.39 ± 0.1 vs. 0.34 ± 0.2 mm, respectively; p = 0.04). There was no difference in the proportion of malapposed or uncovered struts, although protruding covered struts were more common in BP-SES (14.8 ± 10% vs. 4.1 ± 4% vs. 3.7 ± 6%; p = 0.03). In pathology, the lowest neointimal thickness was confirmed in BP-SES (p < 0.05). The inflammation score was significantly lower in BP-SES and EES when compared to BMS (0.24 ± 0.1 vs. 0.4 ± 0.1 vs. 0.77 ± 0.4; p < 0.01) whilst EES and BP-SES had higher fibrin scores than BMS (1.2 ± 0.4 vs. 1.3 ± 0.3 vs. 0.17 ± 0.2; p < 0.01). At 90 days neointimal coverage and thickness in OCT was comparable between groups and healing in histopathology was complete.Conclusions: New generation, BP-SES show similar vascular healing and biocompatibility profile with marginally higher degree of restenosis inhibition, when compared to fluoropolymer EES in the porcine coronary restenosis model

    Searching for ß-delayed protons from 11 Be

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    ISOLDE Workshop and Usersmeeting. Wednesday 05 December - Friday 07 December 2018 .CERN ( ISOLDE User Support. PH Departmen - CERN/CH-1211 Geneve 23). --.https://indico.cern.ch/event/736872/contributions

    Measurement of the cross-section and charge asymmetry of WW bosons produced in proton-proton collisions at s=8\sqrt{s}=8 TeV with the ATLAS detector

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    This paper presents measurements of the W+μ+νW^+ \rightarrow \mu^+\nu and WμνW^- \rightarrow \mu^-\nu cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13

    Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s=13 TeV pp collisions with the ATLAS detector

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    A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of √s=13  TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139  fb−1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015–2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV
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