Search Results - "Visvikis, D."
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Harmonization strategies for multicenter radiomics investigations
Published in Physics in medicine & biology (21-12-2020)“…Carrying out large multicenter studies is one of the key goals to be achieved towards a faster transfer of the radiomics approach in the clinical setting. This…”
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Performance comparison of modified ComBat for harmonization of radiomic features for multicenter studies
Published in Scientific reports (24-06-2020)“…Multicenter studies are needed to demonstrate the clinical potential value of radiomics as a prognostic tool. However, variability in scanner models,…”
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SP-0626: The promise of functional volume automatic segmentation
Published in Radiotherapy and oncology (01-04-2015)Get full text
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Evaluation of conventional and deep learning based image harmonization methods in radiomics studies
Published in Physics in medicine & biology (21-12-2021)“…To evaluate the impact of image harmonization on outcome prediction models using radiomics. 234 patients from the Brain Tumor Image Segmentation Benchmark…”
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Joint EANM/SNMMI guideline on radiomics in nuclear medicine: Jointly supported by the EANM Physics Committee and the SNMMI Physics, Instrumentation and Data Sciences Council
Published in European journal of nuclear medicine and molecular imaging (01-01-2023)“…Purpose The purpose of this guideline is to provide comprehensive information on best practices for robust radiomics analyses for both hand-crafted and deep…”
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A deep neural network for parametric image reconstruction on a large axial field-of-view PET
Published in European journal of nuclear medicine and molecular imaging (01-02-2023)“…Purpose The PET scanners with long axial field of view (AFOV) having ~ 20 times higher sensitivity than conventional scanners provide new opportunities for…”
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GATE V6: a major enhancement of the GATE simulation platform enabling modelling of CT and radiotherapy
Published in Physics in medicine & biology (21-02-2011)“…GATE (Geant4 Application for Emission Tomography) is a Monte Carlo simulation platform developed by the OpenGATE collaboration since 2001 and first publicly…”
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Ensemble of neural networks for 3D position estimation in monolithic PET detectors
Published in Physics in medicine & biology (04-10-2019)“…We propose an ensemble of multilayer feedforward neural networks to estimate the 3D position of photoelectric interactions in monolithic detectors. The…”
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PET respiratory motion correction: quo vadis?
Published in Physics in medicine & biology (01-02-2022)“…Positron emission tomography (PET) respiratory motion correction has been a subject of great interest for the last twenty years, prompted mainly by the…”
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CT respiratory motion synthesis using joint supervised and adversarial learning
Published in Physics in medicine & biology (15-04-2024)“…Four-dimensional computed tomography (4DCT) imaging consists in reconstructing a CT acquisition into multiple phases to track internal organ and tumor motion…”
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Radiomics analysis of 3D dose distributions to predict toxicity of radiotherapy for lung cancer
Published in Radiotherapy and oncology (01-02-2021)“…•The miscalibration of pulmonary and esophageal toxicities in patients with lung cancer treated by (chemo)-radiotherapy is frequent.•Usual dose-volume…”
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SP-0374 WHAT CAN AUTOMATIC PET TUMOUR VOLUME DELINEATION BRING TO TREATMENT PLANNING?
Published in Radiotherapy and oncology (01-05-2012)Get full text
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Economic spillovers between related derivatives markets: The case of commodity and freight markets
Published in Transportation research. Part E, Logistics and transportation review (01-08-2014)“…•Examine volatility spillovers between commodity and freight derivatives markets.•Commodity markets informationally lead freight markets in returns and…”
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Predicting response to radiotherapy of head and neck squamous cell carcinoma using radiomics from cone-beam CT images
Published in Acta oncologica (02-01-2022)“…Radiotherapy (RT) for head and neck cancer is now guided by cone-beam computed tomography (CBCT). We aim to identify a CBCT radiomic signature predictive of…”
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TH‐C‐214‐03: The Good the Bad and the Ugly about Using PET for Treatment Planning?
Published in Medical Physics (01-06-2011)“…The use of PET data into the treatment planning process has been the focus of intense development over the past few years. The availability of multi‐ modality…”
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A Fuzzy Locally Adaptive Bayesian Segmentation Approach for Volume Determination in PET
Published in IEEE transactions on medical imaging (01-06-2009)“…Accurate volume estimation in positron emission tomography (PET) is crucial for different oncology applications. The objective of our study was to develop a…”
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List-mode-based reconstruction for respiratory motion correction in PET using non-rigid body transformations
Published in Physics in medicine & biology (07-09-2007)“…Respiratory motion in emission tomography leads to reduced image quality. Developed correction methodology has been concentrating on the use of respiratory…”
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Local respiratory motion correction for PET/CT imaging: Application to lung cancer
Published in Medical physics (Lancaster) (01-10-2015)“…Purpose: Despite multiple methodologies already proposed to correct respiratory motion in the whole PET imaging field of view (FOV), such approaches have not…”
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Evaluation of respiratory and cardiac motion correction schemes in dual gated PET/CT cardiac imaging
Published in Medical physics (Lancaster) (01-07-2014)“…Purpose: Cardiac imaging suffers from both respiratory and cardiac motion. One of the proposed solutions involves double gated acquisitions. Although such an…”
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Denoising of PET images by combining wavelets and curvelets for improved preservation of resolution and quantitation
Published in Medical image analysis (01-12-2013)“…•An improved Positron Emission Tomography (PET) denoising methodology is proposed.•The new method overcomes limitations of the PET state-of-the-art…”
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