The journey of clinical imaging began with the discovery of X-rays in 1895 by Wilhelm Roentgen. This groundbreaking finding laid the foundation for modern imaging techniques, allowing physicians to visualize the internal structures of the body without invasive procedures. Over the decades, technology has advanced rapidly, leading to the development of more sophisticated imaging modalities such as computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET). Each of these techniques offers unique benefits, enabling precise diagnosis and treatment planning.