Design and evaluation of an MRI compatible axial compression device for 3D assessment of spinal deformity and flexibility in adolescent idiopathic scoliosis

Adam, Clayton J., Izatt, Maree T., & Askin, Geoffrey N. (2010) Design and evaluation of an MRI compatible axial compression device for 3D assessment of spinal deformity and flexibility in adolescent idiopathic scoliosis. In Aubin, Carl-Eric & Stokes, Ian A. F. (Eds.) Studies in Health Technology and Informatics. Research into Spinal Deformities 7, IOS Press, Montreal, Canada, pp. 38-43.

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Magnetic Resonance Imaging (MRI) offers a valuable research tool for the assessment of 3D spinal deformity in AIS, however the horizontal patient position imposed by conventional scanners removes the axial compressive loading on the spine. The objective of this study was to design, construct and test an MRI compatible compression device for research into the effect of axial loading on spinal deformity using supine MRI scans. The device was evaluated by performing unloaded and loaded supine MRI scans on a series of 10 AIS patients. The patient group had a mean initial (unloaded) major Cobb angle of 43±7º, which increased to 50±9º on application of the compressive load. The 7° increase in mean Cobb angle is consistent with that reported by a previous study comparing standing versus supine posture in scoliosis patients (Torell et al, 1985. Spine 10:425-7).

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7 citations in Scopus
6 citations in Web of Science®
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ID Code: 34369
Item Type: Conference Paper
Refereed: Yes
Keywords: Adolescent Idiopathic Scoliosis, Spinal deformity, Magnetic Resonance Imaging, Axially loaded MRI, Cobb angle
DOI: 10.3233/978-1-60750-573-0-38
ISBN: 9781607505723
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomechanical Engineering (090302)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > CLINICAL SCIENCES (110300) > Orthopaedics (110314)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Past > Schools > School of Engineering Systems
Copyright Owner: 2010 The authors and IOS Press
Deposited On: 06 Sep 2010 23:42
Last Modified: 29 Feb 2012 14:25

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