Reject analysis in direct digital radiography

Andersen, Eivind Richter; Jorde, Jannike; Taoussi, Nadia; Yaqoob, Sadia Halima; Konst, Bente; Seierstad, Therese
March 2012
Acta Radiologica;Mar2012, Vol. 53 Issue 2, p174
Academic Journal
Background: Reject analysis can be used as a quality indicator, and is an important tool in localizing areas where optimization is required. Reducing number of rejects is important yielding reduced patient exposure and increased cost-effectiveness. Purpose: To determine rejection rates and causes in direct digital radiography. Material and Methods: Data were collected during a three-month period in spring 2010 at two direct digital laboratories in Norway. All X-ray examinations, types, numbers, and reasons for rejections were obtained using automatic reject analysis software. Thirteen causes for rejection could be selected. Results: Out of the 27,284 acquired images, 3206 were rejected, yielding an overall rejection rate of 12%. Highest rejection rates were found for examination of knees, shoulders, and wrist. In all, 77% of the rejected images arose from positioning errors. Conclusion: An overall rejection rate of 12% indicates a need for optimizing radiographic practice in the department.


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