BUVAT , Irène

This paper presents an overview of the main actions and projects of the theme B 'Biomedical Signal and Image Processing' of the GdR Stic-Santé. Several scientific meetings have been organized during the 2011–2012 period. They are always devoted to advanced signal and image processing that could bring innovative solutions to relevant medical...

PURPOSE: In single-photon emission computed tomography (SPECT) of the dopaminergic system, measurements of striatal uptake are useful for diagnosis and patient follow-up but are strongly biased by the partial volume effect (PVE). We studied whether PVE correction might improve patient classification based on binding potential (BP) measurements....

Abstract Nonbiological differences related to CT scanner type can be removed from radiomic feature values, allowing radiomics features to be combined in multicenter or multivendor studies.Background Radiomics extracts features from medical images more precisely and more accurately than visual assessment. However, radiomics features are affected...

Aim/Introduction: The design and validation of a reliable radiomic signature is challenging when few patients are available because the disease is rare, the imaging protocol is specific and/or the classes are unbalanced. In this context, we propose an approach to identify a signature and estimate its reliability. Materials and Methods: 84...

Lettre à l'éditeur ("European Journal of Nuclear Medicine and Molecular Imaging" 45(8) : 1463–1464https://link.springer.com/article/10.1007%2Fs00259-018-4005-4

International audience

International audience

En imagerie TEP, les études multicentriques sont limitées car les mesures effectuées sur les images (SUV et autres index radiomiques) sont sensibles aux protocoles d'acquisition et de reconstruction. Notre but est de valider l'utilisation de la méthode d'harmonisation ComBat afin de supprimer l'« effet centre » dans les études multicentriques...

Objectives: Quantitative characterization of tumor heterogeneity using PET images shows encouraging results to predict patient response or survival, paving the way for precision medicine based on radiomic features. Yet, the vast majority of results are obtained in monocentric studies, without subsequent validation in multicenter settings. One...

International audience

Two hundred and ten nuclear medicine physicians, radiologists, and hematologists from 26 countries attended the 6th International Workshop on Positron Emission Tomography (PET) in Lymphoma and Myeloma held in Menton, France, in September 2016. The meeting was under the auspices of the European Lymphoma Institute (ELI), the European Association...