Ellipsoid calculations versus manual tumor delineations for glioblastoma tumor volume evaluation.
Fiche publication
Date publication
juin 2022
Journal
Scientific reports
Auteurs
Membres identifiés du Cancéropôle Est :
Pr ANTONI Delphine, Pr NOEL Georges, Dr SCHOTT Roland, Dr THIERY Alicia, Dr CEBULA Hélène, Pr PROUST François, Dr LE FEVRE Clara
Tous les auteurs :
Le Fèvre C, Sun R, Cebula H, Thiery A, Antoni D, Schott R, Proust F, Constans JM, Noël G
Lien Pubmed
Résumé
In glioblastoma, the response to treatment assessment is essentially based on the 2D tumor size evolution but remains disputable. Volumetric approaches were evaluated for a more accurate estimation of tumor size. This study included 57 patients and compared two volume measurement methods to determine the size of different glioblastoma regions of interest: the contrast-enhancing area, the necrotic area, the gross target volume and the volume of the edema area. The two methods, the ellipsoid formula (the calculated method) and the manual delineation (the measured method) showed a high correlation to determine glioblastoma volume and a high agreement to classify patients assessment response to treatment according to RANO criteria. This study revealed that calculated and measured methods could be used in clinical practice to estimate glioblastoma volume size and to evaluate tumor size evolution.
Mots clés
Brain Neoplasms, drug therapy, Glioblastoma, drug therapy, Humans, Magnetic Resonance Imaging, methods, Tumor Burden
Référence
Sci Rep. 2022 06 22;12(1):10502