Qualifying the Variability of Surface Topography Indices for Detection of Clinical Progression of Scoliosis
Date
2013-01-09
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Abstract
Surface topography (ST) measurements of scoliotic deformities offer the potential to
reduce radiation and to provide a more complete description of the deformity when
compared to standard X-rays. These ST measurements must be evaluated within a
clinical context to determine their feasibility for clinical and research applications. This
study quantifies the variability in a set of developed ST indices and estimates a
magnitude of clinically important difference based on current clinical standards. The
variability is compared to the clinically important difference to determine if the system is
adequate for clinical implementation (individual evaluation) or research implementation
(group-to-group comparisons). Nine of ten ST indices were found acceptable for typical
research implementation. One of ten ST indices (aspect ratio) was found acceptable for
typical clinical implementation. Aspect ratio also shows a trend towards differentiating
between progressed and non-progressed scoliosis. However, the estimation of what
constitutes clinically important difference should be examined further.
Description
Keywords
Medicine and Surgery, Engineering--Biomedical, Engineering--Mechanical
Citation
Dubetz, T. P. (2013). Qualifying the Variability of Surface Topography Indices for Detection of Clinical Progression of Scoliosis (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27490