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Evaluation of the volume of the articular disc of TMJ in MR imaging using free software for medical image analysis: morphological comparison and disc displacement

Grant number: 13/09659-5
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): April 01, 2014
Effective date (End): March 31, 2015
Field of knowledge:Health Sciences - Dentistry - Dental Radiology
Principal Investigator:André Luiz Ferreira Costa
Grantee:Jaqueline Serra Martins
Host Institution: Pró-Reitoria de Pós-Graduação, Pesquisa e Extensão. Universidade Cidade de São Paulo (UNICID). São Paulo , SP, Brazil


The aim of this study is to evaluate the correlation among the volume of articular disc, disc displacements and morphology changes in magnetic resonance images (MRI). For this purpose, 55 subjects will be selected, including 30 with symptoms for temporomandibular disorders and 25 asymptomatic persons. Then there will be the MRI segmentation of the discs, initially using the software MRIcro. After full segmentation of images, we will quantify the number of voxels within each segmented region. To conclude, the volumes obtained, clinical variables and diagnostic imaging (disc displacement and morphology) will be submitted to statistical analysis and performed t-test between groups and correlation tests with continuous variables.

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