T1/T2 Matching to Differentiate Tumor Growth From Radiation Effects After Stereotactic Radiosurgery

Abstract

We found that time to progression and T1/T2 mismatch were able to differentiate tumor progression from RE in most patients. When REs are suspected, surgery may not be necessary if patients respond to conservative measures. When tumor progression is suspected, resection or repeat radiosurgery can be effective, depending on the degree of mass effect.