[Thirty years of Radiology Department in Hokkaido University Hospital (author's transl)].

Thirty year's history of the Radiology Department of the Medical School of Hokkaido University, the first department of its kind in Hokkaido, is shortly reviewed. Statistics include the number of staff, equipment and patients diagnosed or/and treated in the department. Sections have been formed in the department since several years ago and are functioning to a certain extent independently in order to keep pace with the development of modern medicine and to meet the needs of our hospital. These sections are mainly radiation therapy, nuclear medicine, neuroradiology, X-ray diagnosis in angiology and for the digestive tract. Diagnosis based upon ultrasonography and CT are also becoming recognized sections in the department recently. Further more data processing and statistics seem to grow to become a section in the near future. In conclusion the number of staff, equipment and patients has been and perhaps will be growing increasingly fast. The increasing number of sections which resulted from the establishment of new specialities makes us to anticipate the new and independent departments in addition to the existing one.