The goal of this exploratory interventional study aims to evaluate the performance of "pseudo-scanner" MRI sequences in delineating the tumor extent within bone sarcomas and its ability to serve as a reference for designing cutting guides and enabling "navigation" during the surgical procedure, thus exploring the possibility of replacing the scanner to minimize exposure to ionizing radiation in patients with sarcoma.
diagnosis of bone sarcoma with surgical indication
Implanted material incompatible with MRI.
Severe claustrophobia.
Pregnant women
Single group
Whole body MRI
DeviceWhole body MRI (ZTE sequence)
Evaluation of the absolute error of surgical margins
The error values observed in the study by Cartiaux et al. to assess the reduction in absolute error of surgical margins obtained when using a computer-assisted cutting procedure (using 3DSide software installed on a laptop belonging to 3Dside, made available to the doctoral student) compared to freehand cutting are used to size the present study. The objective is to compare the absolute error resulting from a cutting procedure assisted by this 3DSide software based on "pseudo-scanner" imaging with that resulting from the same procedure based on standard scanner imaging.
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