The Department of Radiology at the Catholic University of Korea College of Medicine was established in January 1957 and has since built a proud tradition spanning more than half a century. The department encompasses both radiology and nuclear medicine. Since the first recruitment of radiology residents in 1966, the department has trained and produced 373 board-certified radiologists and 21 nuclear medicine physicians. These alumni are now actively contributing to the advancement of radiology in Korea across university hospitals, regional hospitals, and private clinics.

As of February 2025, the department has a total of 105 faculty members engaged in diagnostic image interpretation, imaging equipment management and protocol development, medical education for students and residents, as well as diverse clinical and basic research activities.

The field of radiology has expanded remarkably—from simple X-ray imaging to computed tomography (CT), ultrasonography, magnetic resonance imaging (MRI), nuclear medicine, and positron emission tomography (PET). Furthermore, interventional radiology has evolved to include image-guided biopsies and vascular procedures, playing a pivotal role in minimally invasive diagnosis and therapy.

Imaging has become indispensable for disease diagnosis, treatment planning, prognosis evaluation, and monitoring of treatment response. The development of PACS (Picture Archiving and Communication System) has accelerated the digitalization of medical imaging, and the resulting accumulation of medical big data now serves as a cornerstone for cutting-edge research, particularly in artificial intelligence (AI).

Looking ahead, the continued advancement of imaging technologies, the integration of digital data, and incorporation of AI are expected to further expand the clinical and academic value of radiology.