Every five years, the Japanese Society of Circulation Imaging Technology
implements a questionnaire Investigation that covers the entire country.
A total of 1,020 facilities throughout Japan where cardiac catheterization
can be performed were investigated. The questionnaire response rate was
47.7%. The main points of investigation were actual status, image management,
photographic conditions, cinefilm development processing, and exposure
protection, among others. Correlations were found between the number of
beds in the facility and the number of examinations done and the number
of radiological technologists employed. We also obtained information concerning
the staff engaged in examinations. It was also possible to obtain information
regarding the contents of the examinations implemented throughout country,
the actual status of IVR, and the number of examinations carried out. Questions
regarding picture management revealed that digital imaging and networking
were becoming more widespread. In the area of exposure protection, it was
found that staff exposure was higher than expected. It is necessary to
improve exposure protection in vascular examinations for IVR.