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Ultrasound could do away with need of X-ray for scoliosis screening in children: Study

Hong Kong: Ultrasound is useful for the identification of children who do not require specialist referral for follow-up X-rays, finds a recent study in the journal Ultrasound in Medicine and Biology. This could do away with a >50% reduction of unnecessary radiation for children undergoing scoliosis screening Screening of scoliosis is important for timely initiation of brace treatment...
Hong Kong: Ultrasound is useful for the identification of children who do not require specialist referral for follow-up X-rays, finds a recent study in the journal Ultrasound in Medicine and Biology. This could do away with a >50% reduction of unnecessary radiation for children undergoing scoliosis screening
Screening of scoliosis is important for timely initiation of brace treatment to lessen curve progression in skeletally immature children and adolescents. In Hong Kong, school scoliosis screening programs follow the protocol of referring children screened positive with a Moiré topography and scoliometer for confirmatory standard radiography.
The screening program was found to have a false-positive rate despite being highly sensitive (88%) in detecting those who require specialist referral which could lead to unnecessary X-ray radiation. Radiation-free ultrasound has been reported to be reliable and valid for quantitative assessment of cure severity in scoliosis patients. Tsz-ping Lam, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, and colleagues aimed to determine the accuracy of ultrasound in determining the threshold of referral that requires X-ray for children screened positive with the scoliometer and Moiré topography in a prospective diagnostic accuracy study.
For this purpose, the researchers recruited 442 schoolchildren with a mean Cobb angle of 14.0 ± 6.6°.
Key findings of the study include:
- The sensitivity and specificity of ultrasound in predicting the correct referral status, confirmed by X-ray, were 92.3% and 51.6%, with positive and negative predictive values of 29.0% and 96.9%, respectively.
- Receiver operating characteristic curve analysis revealed area under the curve values of 0.735 for ultrasound alone and 0.832 for ultrasound in combination with measurement of angle of trunk rotation.
"Our finding supports the accuracy of using ultrasound to determine referral status, which could result in a >50% reduction of unnecessary radiation for children undergoing scoliosis screening," concluded the authors.
Reference:
The study titled, "Using Ultrasound to Screen for Scoliosis to Reduce Unnecessary Radiographic Radiation: A Prospective Diagnostic Accuracy Study on 442 Schoolchildren," is published in the journal Ultrasound in Medicine and Biology.
DOI: https://www.umbjournal.org/article/S0301-5629(21)00250-7/fulltext
MSc. Biotechnology
Medha Baranwal joined Medical Dialogues as an Editor in 2018 for Speciality Medical Dialogues. She covers several medical specialties including Cardiac Sciences, Dentistry, Diabetes and Endo, Diagnostics, ENT, Gastroenterology, Neurosciences, and Radiology. She has completed her Bachelors in Biomedical Sciences from DU and then pursued Masters in Biotechnology from Amity University. She has a working experience of 5 years in the field of medical research writing, scientific writing, content writing, and content management. She can be contacted at  editorial@medicaldialogues.in. Contact no. 011-43720751