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Clinical study: investigating the back asymmetry of scoliosis patients
A clinical study is conducted where patients with scoliosis, mostly adolescents, undergo biplanar standing posteroanterior and lateral radiography, followed by optical 3D back scanning and scoliometer measurements during forward bending. The rib hump asymmetry measured from 3D back scans and by scoliometer are compared against each other, as well as to clinical parameters derived from biplanar radiographs.
Keywords: Scoliosis, spine, radiography, EOS, 3D scanning, back shape, scoliometer, asymmetry map, MATLAB, Python
Spinal deformities are omnipresent and difficult to assess and monitor accurately. One of the most prevalent spinal deformities in children and adolescents is scoliosis, a three-dimensional deformation of the spine. In this project, spine analysis based on back surface scans is investigated. Scoliosis patients often display a rib hump asymmetry during forward bending, which can be analysed by using a scoliometer. Classic scoliometer measurements are compared to dynamic rib hump analysis based on dynamic 3D back scans during forward bending.
Spinal deformities are omnipresent and difficult to assess and monitor accurately. One of the most prevalent spinal deformities in children and adolescents is scoliosis, a three-dimensional deformation of the spine. In this project, spine analysis based on back surface scans is investigated. Scoliosis patients often display a rib hump asymmetry during forward bending, which can be analysed by using a scoliometer. Classic scoliometer measurements are compared to dynamic rib hump analysis based on dynamic 3D back scans during forward bending.
The goal of this master thesis is to take part in the clinical study and data processing. Tasks are:
- Patient recruitment and informing,
- Patient supervision and instruction during the measurement procedure,
- Palpation and marking of anatomical landmarks on the dorsal trunk surface,
- Conducting optical 3D measurements with a provided setup,
- Measuring the rib hump asymmetry during forward bending,
- Implementation / further development of a dynamic scoliometer based on dynamic 3D back scans in MATLAB,
- Further development and evaluation of dynamic asymmetry maps of back scans in MATLAB or Python,
- Evaluation of the rib hump asymmetry measurements and comparison against scoliosis parameters derived from biplanar radiographs.
The goal of this master thesis is to take part in the clinical study and data processing. Tasks are: - Patient recruitment and informing, - Patient supervision and instruction during the measurement procedure, - Palpation and marking of anatomical landmarks on the dorsal trunk surface, - Conducting optical 3D measurements with a provided setup, - Measuring the rib hump asymmetry during forward bending, - Implementation / further development of a dynamic scoliometer based on dynamic 3D back scans in MATLAB, - Further development and evaluation of dynamic asymmetry maps of back scans in MATLAB or Python, - Evaluation of the rib hump asymmetry measurements and comparison against scoliosis parameters derived from biplanar radiographs.
If you are interested, please contact Martin Bertsch (martin.bertsch@hest.ethz.ch) with a short CV and transcript of records. The focus of the project can be adjusted to the student’s interest and experience. Supervising professor: Prof. Dr. William R. Taylor.
If you are interested, please contact Martin Bertsch (martin.bertsch@hest.ethz.ch) with a short CV and transcript of records. The focus of the project can be adjusted to the student’s interest and experience. Supervising professor: Prof. Dr. William R. Taylor.