ABSTRACT
ABSTRACT Medical imaging includes diagnostic and therapeutic imaging applications. Therapeutic imaging deals with treatment planning, guidance, assessment of tumor treatment response, palliation, and expansion of new therapeutics. Diagnostic imaging plays an important role in prediction, screening, detection, localization, differential diagnosis, staging, and prognosis of cancer. It includes invasive and noninvasive techniques. Noninvasive (i.e., the imaging modalities do not penetrate the skin physically) techniques use the full breadth of electromagnetic (EM) and acoustic spectrum. They range from plain to 3D+ modalities and can be classied into anatomical, functional (metabolic, physiological, and molecular), and combined or hybrid techniques. Imaging techniques differ in sensitivity, resolution, and contrast (due to the tissue nature or the agent used).
