Is posttreatment FDG-PET-CT response predictive of tumor progression and survival in anal carcinoma?
Complete metabolic response on posttreatment FDG PET-CT is highly predictive of increased PFS and OS in patients treated with chemoradiation for anal carcinoma. In addition to close clinical surveillance, we recommend obtaining posttreatment PET-CT scans >12 weeks following definitive treatment for anal cancer.
The use of rotary files and techniques to perform instrumentation does show less extrusion of the debris and irrigant from the apex. This can contribute to more successful endodontic therapy.