An Overview The importance of medical imaging for patient care is growing steadily. Not only is medical imaging the most important method for diagnosis, but it also plays an increasingly important role in treatment through the use of image-guided intervention procedures, minimally invasive surgery, and individual monitoring of response to drug treatment.Diagnostic and therapeutic medical imaging benefit the patient through more rapid and precise disease management, fewer side effects, and improved outcome. Furthermore, medical imaging benefits the health care system through improved efficiency and more cost-effective solutions, while society benefits through reductions in the increasing health and nursing expenses linked to the aging population in industrialized countries.