Abstract
Axial vertebral rotation, an important parameter in the assessment of scoliosis may be identified on X-ray images. In line with the advances in the field of digital radiography, hospitals have been increasingly using this technique. The objective of the present study was to evaluate the reliability of computer-processed rotation measurements obtained from digital radiographs. A software program was therefore developed, which is able to digitally reproduce the methods of Perdriolle and Raimondi and to calculate semi-automatically the rotation degree of vertebra on digital radiographs. Three independent observers estimated vertebral rotation employing both the digital and the traditional manual methods. Compared to the traditional method, the digital assessment showed a 43% smaller error and a stronger correlation. In conclusion, the digital method seems to be reliable and enhance the accuracy and precision of vertebral rotation measurements.
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Acknowledgments
The authors are grateful to observers, Fernando Herrero, Maximiliano Porto Azevedo and Juan Javier for skillful measurements and to Dr. Marcelo Henrique Nogueira Barbosa and Dr. Helton Luiz Aparecido Defino for valuable suggestions. This project was financially supported by grants from São Paulo State Research Support Fund (FAPESP, process #2007/58120-0) and Brazilian Scientific Research Advisory Board (CNPq).
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Pinheiro, A.P., Tanure, M.C. & Oliveira, A.S. Validity and reliability of a computer method to estimate vertebral axial rotation from digital radiographs. Eur Spine J 19, 415–420 (2010). https://doi.org/10.1007/s00586-009-1186-3
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DOI: https://doi.org/10.1007/s00586-009-1186-3