Background: “Reject analysis” is considered as the critical evaluation of radiographs. Repeated films represent additional no billable costs as well as additional radiation exposure that affects patients and personnel and also is time consuming. This research was carried out to determine the rate of reject films in hospitals affiliated to Kashan University of medical sciences in 2003.

Materials and Methods: This research was a descriptive study in which total radiographies were assessed and repeated films that were not accepted by radiographer and radiologist were determined. The common reasons of repeated films were incorrect exposure factors, incorrect patients position, x-ray equipment faults, processing equipment faults, little cooperation of patients, and miscellaneous reasons. Incidence rate was determined for total cases, body area, hospitals and finally for population.

Results: During the study 6438 radiographies were done. Repeated radiographies were 317 cases that constituted %4.9 of total radiographies. Shabihkhani Hospital and Naghavi Hospital had the highest (%6.9) and lowest (%3.8) rate, respectively. Among the most common reasons of repeated radiographies, incorrect exposure factors (%2) and incorrect patient position (%1) were reported. Skull and pelvis had the most repetition (%7).

Conclusion: The repeated rate of radiographies in this study was similar to previous studies. The repeated rates in some hospitals and in some organs are not acceptable so we recommend continuous education programs to reduce the repeated radiographies.