Best investigation of planning radiotherapy for carcinoma of esophagus?: (A) PET, (B) CT Scan, (C) USG, (D) MRI
Answer is A. Ans. is'a'i.e., PETPrior to radiotherapy, the extent of tumor and its spread is assessed to target t}re area for radiotherapy.CT scan, endoscopic USG and FDG-PET are used for esophageal carcinoma, bt for accurate radiotherapy planning PET scan is far superior to CT or endoscopic USG.