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European Radiology

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01.04.2016 | Musculoskeletal

Lumbar annulus fibrosus biomechanical characterization in healthy children by ultrasound shear wave elastography

Erschienen in: European Radiology | Ausgabe 4/2016

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Abstract

Objectives

Intervertebral disc (IVD) is key to spine biomechanics, and it is often involved in the cascade leading to spinal deformities such as idiopathic scoliosis, especially during the growth spurt. Recent progress in elastography techniques allows access to non-invasive measurement of cervical IVD in adults; the aim of this study was to determine the feasibility and reliability of shear wave elastography in healthy children lumbar IVD.

Methods

Elastography measurements were performed in 31 healthy children (6–17 years old), in the annulus fibrosus and in the transverse plane of L5–S1 or L4–L5 IVD. Reliability was determined by three experienced operators repeating measurements.

Results

Average shear wave speed in IVD was 2.9 ± 0.5 m/s; no significant correlations were observed with sex, age or body morphology. Intra-operator repeatability was 5.0 % while inter-operator reproducibility was 6.2 %. Intraclass correlation coefficient was higher than 0.9 for each operator.

Conclusions

Feasibility and reliability of IVD shear wave elastography were demonstrated. The measurement protocol is compatible with clinical routine and the results show the method’s potential to give an insight into spine deformity progression and early detection.

Key Points

• Intervertebral disc mechanical properties are key to spine biomechanics

• Feasibility of shear wave elastography in children lumbar disc was assessed

• Measurement was fast and reliable

• Elastography could represent a novel biomarker for spine pathologies

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Titel: Lumbar annulus fibrosus biomechanical characterization in healthy children by ultrasound shear wave elastography
Publikationsdatum: 01.04.2016
Erschienen in: European Radiology / Ausgabe 4/2016
Print ISSN: 0938-7994
Elektronische ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-015-3911-0

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Lumbar annulus fibrosus biomechanical characterization in healthy children by ultrasound shear wave elastography

Abstract

Objectives

Methods

Results

Conclusions

Key Points

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Springer Medizin

Abstract

Objectives

Methods

Results

Conclusions

Key Points

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