A SPINE 3D MODELING SYSTEM BASED ON X-RAY IMAGES / UM SISTEMA DE MODELAGEM 3D DE COLUNA VERTEBRAL BASEADO EM IMAGENS DE RAIOS-X
AUTOR(ES)
PEDRO SAMPAIO VIEIRA
DATA DE PUBLICAÇÃO
2009
RESUMO
Research involving computer graphics and laboratory exams has contributed much to the quality of the Medical diagnose. One aspect of these researches is directly related to 3D reconstruction of anatomical structures of the human body, especially the spine. The sedentary lifestyle and the high dependence of computers have increased the postural problems of the population. Therefore, new techniques for 3D reconstruction based on Computed tomography (CT), magnetic resonance imaging (MRI) and x-ray images are required, in order to make the clinical evaluation increasingly accurate. This work proposes a 3D modeling system based on x-ray images that yields a virtual spine model. The recovery of three-dimensional information of each vertebra helps improve the assessment currently made using only 2D images. The technique used here is based on stereo radiographic. The use of x-ray images instead of CT, significantly reduces the exposure time of the patient to radiation, and is more useful to the general population due to its lower cost. The results presented here show good accuracy despite its lower cost. The proposed method has achieved results very close to those based on expensive CT or MRI, where the input image is better than x-ray images.
ASSUNTO(S)
ACESSO AO ARTIGO
Documentos Relacionados
- Reconstrução 3D de imagens tomográficas de raios-x de arcos coronais em ambiente paralelo.
- Filmes finos de iodeto de chumbo como detector de raios-X para imagens médicas
- Estudos de macromoleculas biologicas parcialmente desestruturadas usando espalhamento de raios-X
- Espectrometria de raios-X aliada a quimiometria no estudo de vegetais
- Espectrometria de raios-X aliada a quimiometria no estudo de vegetais