The purpose of this study is to determine if MRI imaging can be used to accurately determine if a sarcoma is responding to the type of chemotherapy being used or if it is ineffective early on in the treatment; instead of finding this out 2-3 months later. If it is determined that MRI can accurately diagnose tumor response, medications can be switched early on potentially improv8ing the patients'chances of recovery.
To determine if MRI imaging can be used to accurately determine if a sarcoma is responding to the type of chemotherapy being used.