In the century since Wilhelm Conrad Roentgen discovered X-rays in 1895, radiology has gone from being a scientific curiosity to a medical necessity. The transformation of radiology paralleled dramatic changes in the role of those responsible for the operation of the X-ray equipment itself. Radiology is an important part of today's healthcare. The field developed relatively quickly in the 20th century and, thanks to computer technology and artificial intelligence (AI), continues to advance.