Validation of Feature Based 3D Reconstruction of Scoliotic Spine

Sampath, K and Nayak, Prabhakar K and Hareesha , K S (2015) Validation of Feature Based 3D Reconstruction of Scoliotic Spine. In: Validation of Feature Based 3D Reconstruction of Scoliotic Spine, April 6–8, 2014., Manipal.

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Abstract

The purpose of this study is to validate the feature based 3D model obtained from deformation of calibrated stereo-radiographic reconstruction. At present, this 3D spine deformation is evaluated in 2-D using frontal and lateral radiographs which is inaccurate. Advanced imaging modalities such as CT and MRI are not suitable as they are obtained with the patient in supine position. A stereo-radiographic device is developed and calibrated using previously measured 3-D objects to know the geometrical parameters. Using geometrical parameters and stereo-corresponding points (SCPs) a 3-D model of the spine is developed. A feature based model is developed using CATIA V5. This is deformed according to SCP reconstruction. For validating this procedure back projection technique is used. Results are promising with five patient data. 3-D model of the spine is an aid to doctors, for better view of the patient's situation. From this 3-D clinical parameters can be computed and used for diagnosis, follow-up or correct assessment of the spinal deformity. The geometric reconstruction combined with mechanical properties can build a biomechanical model that can be used in treatment simulations.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: 3D spine modelling, Biplanar radiography, Scoliosis, Validation
Subjects: Engineering > MIT Manipal > Electronics and Communication
Engineering > MIT Manipal > MCA
Depositing User: MIT Library
Date Deposited: 13 Apr 2015 09:33
Last Modified: 19 May 2015 07:56
URI: http://eprints.manipal.edu/id/eprint/142413

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