نتایج جستجو برای: glioblastoma multiform radiomics

تعداد نتایج: 27305  

2017
Yucheng Zhang Anastasia Oikonomou Alexander Wong Masoom A. Haider Farzad Khalvati

Radiomics characterizes tumor phenotypes by extracting large numbers of quantitative features from radiological images. Radiomic features have been shown to provide prognostic value in predicting clinical outcomes in several studies. However, several challenges including feature redundancy, unbalanced data, and small sample sizes have led to relatively low predictive accuracy. In this study, we...

Background and Aim: Glioblastoma multiforme (GBM) is the most common malignant and invasive tumor of the brain. The relation between prognosis and survival of GBM patients with Epidermal Growth Factor Receptor (EGFR) expression is challenging. Thus, we aimed to evaluate the prognosis and survival of patients with GBM and its relationship with EGFR expression. Materials and Methods: This single...

Journal: :Magnetic resonance imaging 2012
Virendra Kumar Yuhua Gu Satrajit Basu Anders Berglund Steven A Eschrich Matthew B Schabath Kenneth Forster Hugo J W L Aerts Andre Dekker David Fenstermacher Dmitry B Goldgof Lawrence O Hall Philippe Lambin Yoganand Balagurunathan Robert A Gatenby Robert J Gillies

"Radiomics" refers to the extraction and analysis of large amounts of advanced quantitative imaging features with high throughput from medical images obtained with computed tomography, positron emission tomography or magnetic resonance imaging. Importantly, these data are designed to be extracted from standard-of-care images, leading to a very large potential subject pool. Radiomics data are in...

Journal: :CoRR 2015
Audrey G. Chung Mohammad Javad Shafiee Devinder Kumar Farzad Khalvati Masoom A. Haider Alexander Wong

Prostate cancer is the most diagnosed form of cancer in Canadian men, and is the third leading cause of cancer death. Despite these statistics, prognosis is relatively good with a sufficiently early diagnosis, making fast and reliable prostate cancer detection crucial. As imaging-based prostate cancer screening, such as magnetic resonance imaging (MRI), requires an experienced medical professio...

Journal: :Frontiers in oncology 2015
Chintan Parmar Patrick Grossmann Derek Rietveld Michelle M. Rietbergen Philippe Lambin Hugo J. W. L. Aerts

INTRODUCTION "Radiomics" extracts and mines a large number of medical imaging features in a non-invasive and cost-effective way. The underlying assumption of radiomics is that these imaging features quantify phenotypic characteristics of an entire tumor. In order to enhance applicability of radiomics in clinical oncology, highly accurate and reliable machine-learning approaches are required. In...

Journal: :CoRR 2017
Zhiguo Zhou Zhi-Jie Zhou Hongxia Hao Shulong Li Xi Chen You Zhang Michael Folkert Jing Wang

Radiomics aims to extract and analyze large numbers of quantitative features from medical images and is highly promising in staging, diagnosing, and predicting outcomes of cancer treatments. Nevertheless, several challenges need to be addressed to construct an optimal radiomics predictive model. First, the predictive performance of the model may be reduced w hen features extracted from an indiv...

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