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Review
. 2021 Oct;31(7):1273-1285.
doi: 10.1007/s00590-021-02883-8. Epub 2021 Jan 31.

Quantitative imaging of the spine in adolescent idiopathic scoliosis: shifting the paradigm from diagnostic to comprehensive prognostic evaluation

Saba Pasha  1 , Chamith R Rajapaske  2   3 , Ravinder Reddy  3 , Bassel Diebo  4 , Patrick Knott  5 , Brandon C Jones  3 , Dushyant Kumar  3 , Winnie Zhu  6 , Edmond Lou  7 , Nadav Shapira  3 , Peter Noel  3 , Victor Ho-Fung  6 , Diego Jaramillo  8
Affiliations
Review

Quantitative imaging of the spine in adolescent idiopathic scoliosis: shifting the paradigm from diagnostic to comprehensive prognostic evaluation

Saba Pasha et al. Eur J Orthop Surg Traumatol. 2021 Oct.

Abstract

Purpose: We aimed to provide a perspective review of the available quantitative imaging modalities of the spine for prognostic evaluation of the adolescent idiopathic scoliosis (AIS).

Methods: A technical description of the current imaging technologies for quantitative assessment of the pediatric spine with scoliosis was provided, and the pros and cons of each method were discussed. Imaging modalities that quantify the overall 3D alignment of the spine as well as the structural specification of the spinal bone, intervertebral disc, endplates, and ligaments as it pertains to development and progression of the idiopathic spinal deformities in adolescents were discussed.

Results: Low-dose and microdose stereoradiography, ultrasound, and rasterstereography provide quantitative imaging of the 3D spinal alignment with low or no radiation in standing posture which allows repetitive imaging for early detection of the curve development. Quantitative magnetic resonance imaging, including ultrashort dual-echo time and T1-rho can provide quantitative assessment of the spinal tissues relevant to development of idiopathic spinal deformity in pediatric population. New computed tomography scans that uses dual-energy can provides high-resolution measure of the current-state of the bone quality and morphology as well as the osteogenic properties of the bone by quantitative evaluation of the bone marrow.

Conclusion: The presented imaging modalities can provide a wide spectrum of quantifiable information relevant to development and progression of the spinal deformity. Clinical application of these technologies can change the paradigm in clinical assessment of the pediatric scoliosis by improving our understanding of the pathogenesis of the idiopathic scoliosis.

Keywords: Adolescent Idiopathic Scoliosis; Magnetic resonance; Quantitative Medical Imaging; Rasterstereography; Spine; Ultrasound.

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