Accuracy of 100 mm x 100 mm mirror optic camera technique as compared to normal chest radiography technique.

Full size and 100 mm x 100 mm mirror optic camera (photofluorographic) chest films of 121 patients were read by a team of four radiologists. Altogether 2781 diagnostic statements were reported, 968 of which were of primary importance, and only these statements were analysed. Error rates with the standard technique varied between 16 and 31% and with the 100 mm x 100 mm technique between 21 and 38%. The difference in error rates between the techniques used was not statistically significant but there were significant differences between the individual radiologists.