Imaging technologies encompass a range of tools and techniques used to visualize the internal structures of the body, often enabling the detection of abnormalities that are indicative of disease. These technologies include X-rays, Magnetic Resonance Imaging (MRI), Computed Tomography (CT) scans, ultrasound, and Positron Emission Tomography (PET) scans, among others. Each of these methods has specific applications and advantages in the context of epidemiology.