Over the last few years, the use of FDG PET/CT in oncology has increased exponentially, and it showed appreciated impact in cancer patient's management. However; through these years some difficulties in application of FDG PET/CT in oncology rose up including non-specificity of FDG for cancer tissue, combined radiation exposure from FDG and CT and other technical pitfalls. This book, therefore, provides collection of some research handled application of FDG PET/CT in head and neck and rectal cancer patients. Also showed some limitation of FDG PET/CT in these cancers and provide modified...