Comparative Studies On Permanent Prostate Brachytherapy: Preplan And Real-time Transrectal Ultrasound Guided Iodine-125 Seed Implants At Korle-bu Teaching Hospital, Ghana

CHAPTER ONE INTRODUCTION 1.1 Background Brachytherapy is a term used to describe the short distance treatment of cancer with radiation from small, encapsulated radionuclide sources. This type of treatment is given by placing sources directly into or near the volume to be treated. The dose is then delivered continuously, either over a short period of time (temporary implants) or over the lifetime of the source to a complete decay (permanent implants). Most common brachytherapy sources emit photons; however, in a few specialized situations beta or neutron emitting sources are used. There are …