38 research outputs found

    e-Research and Jurisdiction

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    As part of their daily activities, those involved in e-research will often transfer information, including background materials, research results and software, across state and national borders. The act of transferring information across state and national borders raises a number of jurisdictional issues. This chapter will discuss key issues regarding intellectual property, privacy and dispute resolution as they arise from eresearchers transferring information across state and national borders, and how these issues may contractually be resolved

    External validation and updating of prediction models for estimating the 1-year risk of low health-related quality of life in colorectal cancer survivors

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    Objectives Timely identification of colorectal cancer (CRC) survivors at risk of experiencing low health-related quality of life (HRQoL) in the near future is important for enabling appropriately tailored preventive actions. We previously developed and internally validated risk prediction models to estimate the 1-year risk of low HRQoL in long-term CRC survivors. In this article, we aim to externally validate and update these models in a population of short-term CRC survivors. Study Design and Setting In a pooled cohort of 1,596 CRC survivors, seven HRQoL domains (global QoL, cognitive/emotional/physical/role/social functioning, and fatigue) were measured prospectively at approximately 5 months postdiagnosis (baseline for prediction) and approximately 1 year later by a validated patient-reported outcome measure (European Organization for Research and Treatment of Cancer Quality of life Questionnaire–Core 30). For each HRQoL domain, 1-year scores were dichotomized into low vs. normal/high HRQoL. Performance of the previously developed multivariable logistic prediction models was evaluated (calibration and discrimination). Models were updated to create a more parsimonious predictor set for all HRQoL domains. Results Updated models showed good calibration and discrimination (AUC ≥0.75), containing a single set of 15 predictors, including nonmodifiable (age, sex, education, time since diagnosis, chemotherapy, radiotherapy, stoma, and comorbidities) and modifiable predictors (body mass index, physical activity, smoking, anxiety/depression, and baseline fatigue and HRQoL domain scores). Conclusion Externally validated and updated prediction models performed well for estimating the 1-year risk of low HRQoL in CRC survivors within 6 months postdiagnosis. The impact of implementing the models in oncology practice to improve HRQoL outcomes in CRC survivors needs to be evaluated

    Dose–effect relationships in neuroendocrine tumour liver metastases treated with [166Ho]-radioembolization

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    Purpose: Aim of this study was to investigate a dose-response relationship, dose-toxicity relationship, progression free survival (PFS) and overall survival (OS) in neuroendocrine tumour liver metastases (NELM) treated with holmium-166-microspheres radioembolization ([166Ho]-radioembolization). Materials and methods: Single center, retrospective study included patients with NELM that received [166Ho]-radioembolization with post-treatment SPECT/CT and CECT or MRI imaging for 3 months follow-up. Post-treatment SPECT/CT was used to calculate tumour (Dt) and whole liver healthy tissue (Dh) absorbed dose. Clinical and laboratory toxicity was graded by Common Terminology Criteria for Adverse Events (CTCAE), version 5 at baseline and three-months follow-up. Response was determined according to RECIST 1.1. The tumour and healthy doses was correlated to lesion-based objective response and patient-based toxicity. Kaplan Meier analyses were performed for progression free survival (PFS) and overall survival (OS). Results: Twenty-seven treatments in 25 patients were included, with a total of 114 tumours. Median follow-up was 14 months (3 – 82 months). Mean Dt in non-responders was 68 Gy versus 118 Gy in responders, p = 0.01. ROC analysis determined 86 Gy to have the highest sensitivity and specificity, resp. 83% and 81%. Achieving a Dt of ≥ 120 Gy provided the highest likelihood of response (90%) for obtaining response. Sixteen patients had grade 1–2 clinical toxicity and only one patient grade 3. No clear healthy liver dose-toxicity relationship was found. The median PFS was 15 months (95% CI [10.2;19.8]) and median OS was not reached. Conclusion: This study confirms the safety and efficacy of [166Ho]-radioembolization in NELM in a real-world setting. A clear dose–response relationship was demonstrated and future studies should aim at a Dt of ≥ 120 Gy, being predictive of response. No dose-toxicity relationship could be established

    Asynchronous telemedicine applications in the rehabilitation of acquired speech-language disorders in neurological patients

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    Contains fulltext : 149320.pdf (publisher's version ) (Open Access)10 p

    Potentials of Telehealth Devices for Speech Therapy in Parkinson's Disease

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    Contains fulltext : 338462.pdf (author's version ) (Open Access) Contains fulltext : 338463.pdf (publisher's version ) (Open Access

    E-learning based Speech Therapy (EST): Exploring the potentials of e-health for dysarthric speakers

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    Contains fulltext : 101662.pdf (Publisher’s version ) (Open Access)Radboud Universiteit Nijmegen, 21 november 2012Promotores : Rietveld, A.C.M., Geurts, A.C.H.289 p

    Automatic Recognition Of Dutch Dysarthric Speech, A Pilot Study

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    Contains fulltext : 76211.pdf (author's version ) (Open Access)ICSLP 2002, 16 september 20024 p
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