Computer-Assisted Resection and Reconstruction of Pelvic Tumor Sarcoma

Figure 1

(a) Preoperative imaging workup of the patient consisted of MRI and CT of the pelvis. A CT of the allograft (iliac bone) was also obtained. (b) The tumor is segmented on the MRI slices. (c) The MRI and CT are coregistered. The CT of the patient and of the allograft are registered. (d) The target planes (red lines) are preoperatively defined by locating the planes with respect of a safe margin from the tumor. The planes coordinates are transferred to the allograft.