Gijsbert M Kalisvaart, Thomas Van Den Berghe, Willem Grootjans, Maryse Lejoly, Wouter C J Huysse, Judith V M G Bovée, David Creytens, Hans Gelderblom, Frank M Speetjens, Lore Lapeire, Michiel A J van de Sande, Gwen Sys, Lioe-Fee de Geus-Oei, Koenraad L Verstraete, Johan L Bloem
OBJECTIVE: To identify which dynamic contrast-enhanced (DCE-)MRI features best predict histological response to neoadjuvant chemotherapy in patients with an osteosarcoma. METHODS: Patients with osteosarcoma who underwent DCE-MRI before and after neoadjuvant chemotherapy prior to resection were retrospectively included at two different centers. Data from the center with the larger cohort (training cohort) was used to identify which method for region-of-interest selection (whole slab or focal area method) and which change in DCE-MRI features (time to enhancement, wash-in rate, maximum relative enhancement and area under the curve) gave the most accurate prediction of histological response...
July 18, 2023: Skeletal Radiology