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Performance and reliability assessment of a lower dose, task-based scoliosis radiography protocol in pediatric patients.
- Source :
-
Pediatric Radiology . Jan2024, Vol. 54 Issue 1, p146-153. 8p. - Publication Year :
- 2024
-
Abstract
- Background: Follow-up scoliosis radiographs are performed to assess the degree of spinal curvature and skeletal maturity, which can be done at lower radiation exposures than those in standard-dose radiography. Objective: Describe and evaluate a protocol that reduced the radiation in follow-up frontal-view scoliosis radiographs. Materials and methods: We implemented a postero-anterior lower dose modified-technique for scoliosis radiography with task-based definition of adequate image quality and use of technique charts based on target exposure index and patient's height and weight. We subsequently retrospectively evaluated 40 consecutive patients who underwent a follow-up radiograph using the modified-technique after an initial standard-technique radiograph. We evaluated comparisons of proportions for subjective assessment with chi-squared tests, and agreements of reader's scores with intraclass correlation coefficients and Bland–Altman plots. We determined incident air kerma, exposure index, deviation index/standard deviation, dose-area product (DAP), and effective dose for each radiograph. We set statistical significance at P<0.05. Results: Forty patients (65% female), aged 4–17 years. Median effective dose was reduced from 39 to 10 µSv (P<0.001), incident air kerma from 139 to 29 µSv (P<0.001), and DAP from 266 to 55 mGy*cm2 (P<0.001). All modified-technique parameters were rated with a mean score of acceptable or above. All modified-technique measurements obtained inter- and intra-observer correlation coefficient agreements of 0.86 ("Good") or greater. Conclusion: Substantial dose reduction on follow-up scoliosis imaging with existing radiography units is achievable through task-based definition of adequate image quality and tailoring of radiation to each patient's height and weight, while still allowing for reliable assessment and reproducible measurements. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CHILD patients
*RADIOGRAPHY
*SCOLIOSIS
*SPINAL curvatures
*INTRACLASS correlation
Subjects
Details
- Language :
- English
- ISSN :
- 03010449
- Volume :
- 54
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Pediatric Radiology
- Publication Type :
- Academic Journal
- Accession number :
- 174688366
- Full Text :
- https://doi.org/10.1007/s00247-023-05812-5