[en] Following a preliminary review of diagnostic radiology operations at the Johns Hopkins Hospital, in which several major activities were identified as amenable to automatic data processing (ADP) techniques, a pilot study of computer applications was undertaken with the cooperation and support of the National Center for Radiological Health. The pilot study was designed to test the feasibility of applying ADP techniques to the reporting of diagnostic radiology findings and to the control of x-ray film library transactions. The results of the pilot study demonstrated the feasibility of applying ADP techniques to the reporting of radiographic diagnoses with a significant reduction in the elapsed time associated with the x-ray consultation request-report cycle. The tests also provided a basis for evaluating the remote terminal configuration and the procedures developed to implement the systems design. In general, the findings were sufficiently encouraging to proceed with further development of the system, with the knowledge that specific modifications were required, particularly with regard to remote terminal devices, before the application of ADP techniques could be considered operational in diagnostic radiology