PET Based Radiotherapy Planning
PET CT has become an integral part in radiotherapy treatment planning procedures. PET CT based planning has a clear role in lung cancer, head and neck cancer, esophageal cancer and cervical cancers.
The main reasons to utilize PET CT in lung cancer are 1) It significantly changes the lymph node staging in thorax 2) in cases of atelectasis, PET CT defines the border of tumour, allowing a smaller volume of the lung to be treated.
Pre-treatment planning PET CT in cervix cancers helps to alter radiation treatment strategy (either by extending the irradiated volume to common iliac or para-aortic areas or escalating radiation dose to involved nodes.