Combined SCP and Geometric Reconstruction of Spine from Biplanar Radiographs

Sampath, K and Nayak, Prabhakar K and Hareesha, K S (2015) Combined SCP and Geometric Reconstruction of Spine from Biplanar Radiographs. In: 5th International Conference on Soft Computing for Problem Solving, 02/11/2015, IIT, Roorkee.

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Three-dimensional reconstruction of the spine is necessary in proper diagnosis of various spinal deformities. This is normally achieved using stereo-radiographic techniques involving biplanar (frontal and lateral) radiographs. Ei-ther stereo-corresponding point (SCP) algorithm or non-stereo-corresponding point (NSCP) algorithm is used for this purpose. The NSCP technique suffers from observer variability. Moreover, it is time consuming. Hence it has restrict-ed usage in clinical environment. Here, a hybrid approach is proposed in which a 3D spine model is reconstructed by applying geometric features to the SCP reconstructed model. The vertebral orientation features are automatically ex-tracted from the calibrated radiographs. The 3D model thus produced is suc-cessfully validated. The proposed method has lesser observer variability due to the limited number of anatomical landmarks. Also, the reconstruction errors are within the acceptable limits available in the literature. Thus, the proposed tech-nique can be used in clinical practices for the diagnosis of spinal deformities.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Stereo-radiography . Spine deformities . Generic spine model
Subjects: Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 24 Mar 2016 15:17
Last Modified: 26 Mar 2016 13:39

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