Related Experiment Video
Updated: May 24, 2026
Reliability of Artificial Intelligence-Based Cone Beam Computed Tomography Integration with Digital Dental Images
Published on: February 23, 2024
The accuracy of automatic calibration of digital pelvic radiographs using two different scale markers: a comparative
Jonathan A Baxter1, Timothy Barlow, Shanmugam Karthikeyan
1Department of Trauma and Orthopaedic Surgery, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK.
Abstract:
We have investigated the accuracy of automatic calibration of digital pelvic radiographs using the single and double marker techniques. Both markers were applied by the radiographer at the time of routine, postoperative radiographs. Each radiograph was loaded into the TraumaCad(TM) software package which calculated the magnification and scaled the radiograph automatically. The median error of magnification in the double marker group was 1.14% when calculated automatically. The median error of the single marker was 5.98%. The relationship between true and predicted magnification was strongest in the double marker group with excellent correlation (r=0.91) and agreement (ICC<0.91). We believe that the double marker method with automatic calibration is the most reliable method of scaling a pelvic radiograph in clinical practice currently available.
