Reliability of the axial vertebral rotation measurements of adolescent idiopathic scoliosis using the center of lamina method on ultrasound images: in vitro and in vivo study

Chen, Wei; Le, Lawrence H.; Lou, Edmond

doi:10.1007/s00586-016-4492-6

Cited by 31 publications

(16 citation statements)

References 24 publications

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“…Furthermore, different tools have been used to evaluate sagittal spinal curvature such as inclinometers ( Free-hand 3D ultrasound imaging, which combines a conventional B-mode imaging system with a position sensor, has been developed over two decades and recently become more popular due to its features of radiation-free, wider accessibility and lower cost in comparison with other 3D imaging modalities (Huang et al 2005 of the laminae method showed high intra-and inter-reliability and were comparable with those obtained from X-ray. Axial vertebral rotation obtained using the laminae method also showed high intra-and inter-reliability (Chen et al 2016), and good agreement was found between the laminae ultrasound results with those obtained by the Aaro-Dahlborn method in the magnetic resonance images (Wang et al 2016). Though there were various studies using ultrasound on the evaluation of vertebrae features, coronal spinal curvature and vertebrae rotation, no study has been reported on the reliability of 3D ultrasound imaging for evaluating the sagittal spinal curvature.…”

Section: )mentioning

confidence: 58%

Analysis of sagittal profile of spine using 3D ultrasound imaging: a phantom study and preliminary subject test

Lee

Cheung

Law

et al. 2019

Computer Methods in Biomechanics and Biomedical Engineering: Im

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Radiographic Cobb's angle is the gold standard for evaluation of spinal curvature, however X-ray is ionizing. In contrast, ultrasound is non-ionizing and inexpensive, thus more accessible. However, no study has reported the reliability and accuracy of ultrasound on sagittal curvature analysis. Ultrasound and X-ray scanning were conducted on 16 sets of spine phantoms with different deformities. Intrarater and inter-rater reliability, correlations, mean absolute differences (MAD) and linear regression of Ultrasound spinous process angles (USSPA), X-ray spinous process angles (XSPA) and X-ray Cobb's angles (XCA) together with the intra-operator reliability of USSPA were investigated. In addition, USSPA and XCA of five AIS subjects were scanned using the ultrasound system. In the phantom study, excellent intra-rater and inter-rater reproducibility for the three angles and excellent intraoperator reproducibility for USSPA were demonstrated. Good to moderate correlations were obtained between lumbar XCA and XSPA and between lumbar XCA and USSPA, whereas excellent correlations were observed between the other angles. All three angles indicated positive linear relationships, with MAD of 5.8°, 3.0° and 6.0° for XSPA against XCA, USSPA against XSPA and USSPA against XCA, respectively. The results of the preliminary study demonstrated a high intrareliability for the ultrasound measurements. The measured difference between the USSPA and XCA methods was 6.3° ± 5.4°. It should be noted that ultrasound and X-ray measurements were based on different structures of the vertebrae. The results showed that ultrasound is feasible for measuring sagittal curvature and has the potential for monitoring the curve progression and evaluating sagittal spinal profiles.

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Section: )mentioning

confidence: 58%

Analysis of sagittal profile of spine using 3D ultrasound imaging: a phantom study and preliminary subject test

Lee

Cheung

Law

et al. 2019

Computer Methods in Biomechanics and Biomedical Engineering: Im

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“…These finding place this experimental model closer to morphological changes seen in human idiopathic scoliosis. Even the severity of the rotation at the apex of the primary curves (25.7° ± 16.3°) is within the range of vertebral rotation described in adolescent idiopathic scoliosis . Although in this model axial rotation is satisfactorily achieved, the intervention performed in these animals are not still parallel to the much subtler disturbances that can lead to a progressive rotatory deformity in human scoliosis.…”

Section: Discussionmentioning

confidence: 80%

Novel porcine experimental model of severe progressive thoracic scoliosis with compensatory curves induced by interpedicular bent rigid temporary tethering

Barrios

Lloris

Alonso

et al. 2017

Journal Orthopaedic Research

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“…They concluded that these deformities of AIS subjects vary with different positions, and the patterns of changes in sitting or sitting forward bending positions are highly subject dependent. Likewise, Chen et al 53 further investigated the intra-and interobserver reliability of axial vertebral rotation measurements of AIS subjects using the center of lamina method on 3D ultrasound images, and they found an intraclass correlation coefficient > 0.91 and mean absolute difference < 1.4 degrees. Several other studies used 3D ultrasound to assess scoliosis curves using different bony landmarks in either prone or supine positions.…”

Section: Three-dimensional Ultrasoundmentioning

confidence: 99%

Weight-bearing Imaging in Adolescent Idiopathic Scoliosis

Chiyanika

2019

Semin Musculoskelet Radiol

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This article reviews the weight-bearing imaging methods in the diagnosis and monitoring of patients with adolescent idiopathic scoliosis (AIS), a three-dimensional (3D) deformity of the spine with unknown etiology. The apical vertebrae in AIS rotate away from the midline in a complex 3D pattern that formerly could only be appreciated by computed tomography (CT). Despite its superb anatomical delineation, CT is not ideal due to high radiation and scanning in either the supine or prone position; hence the full effect of gravity on the spinal curvature cannot be assessed. The introduction of low-dose stereoradiography with the capacity of 3D reconstruction has recently opened up a new era of assessment of the scoliotic spine in the upright position at multiple time points during the preoperative and postoperative period. The handheld 3D ultrasound imaging system also provides a radiation-free alternative for close monitoring for disease progression and treatment outcomes for AIS. Upright magnetic resonance imaging is radiation free and superb for the assessment of spinal cord and intervertebral disks; however, its utilization in scoliosis is limited by high cost and limited availability.

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Reliability of the axial vertebral rotation measurements of adolescent idiopathic scoliosis using the center of lamina method on ultrasound images: in vitro and in vivo study

Abstract: The pilot study indicated the proposed COL method was a simple and reliable method to evaluate the AVR on ultrasound images. Standardization of the posture during ultrasound scan and taking radiograph is important.

Cited by 31 publications

References 24 publications

Analysis of sagittal profile of spine using 3D ultrasound imaging: a phantom study and preliminary subject test

Analysis of sagittal profile of spine using 3D ultrasound imaging: a phantom study and preliminary subject test

Novel porcine experimental model of severe progressive thoracic scoliosis with compensatory curves induced by interpedicular bent rigid temporary tethering

Weight-bearing Imaging in Adolescent Idiopathic Scoliosis

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