3-DIMENSIONAL MRI RECONSTRUCTIONS OF MUSCULOSKELETAL TUMORS - A PRELIMINARY EVALUATION OF 2 CASES

We have developed a new method for three-dimensional (3D) reconstructi on of malignant bone and soft-tissue tumors from MRI. Data from transv erse images of T2-weighted images were transferred into a personal com puter. The contours of tumors, major vessels, major nerves and bones w ere outlined, whereupon the 3D data were processed into a 30 display, using a solid model. The determination of tumor volume both before and after preoperative adjuvant therapy was quantified. The 3D images all owed a better understanding of the relationship between the tumor and the major vessels and nerves, thereby aiding in preoperative planning. The images also provided a quantitative, reproducible measurement of the effect of adjuvant therapy.