Subjective analysis of the application of enhancement filters on magnetic resonance imaging of the temporomandibular joint

Autor(es)

Montesinos, Gonzalo Andre ^[1] ; de Castro Lopes, Sergio Lucio Pereira ^[2] ; Trivino, Tarcila ^[1] ; Sanchez, Jose Andres ^[3] ; Maeda, Fernando Akio ^[1] ; de Freitas, Claudio Froes ^[1] ; Ferreira Costa, Andre Luiz ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo City UNICID, Dept Orthodont & Radiol, Sao Paulo, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Sao Jose Dos Campos Dent Sch, Dept Diag & Surg, Sao Jose Dos Campos, SP - Brazil

^[3] Univ Cuenca, Sch Med, Cuenca - Ecuador

• Tipo de documento: Artigo Científico
• Fonte: ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY; v. 127, n. 6, p. 552-559, JUN 2019.
• Citações Web of Science: 2

Resumo

Objective. The aim of this study was to investigate the effect of enhancement filters on magnetic resonance imaging (MRI) of the temporomandibular joint (TMJ). Study Design. In total, 66 MRI scans of the TMJ were analyzed without filtration and with the application of 2 filters: Sharpen 1 and Sharpen 2 (OnDemand software). Two dentomaxillofacial radiologists examined the original and filtered images individually. Intra- and interobserver concordance was measured by using generalized estimating equations. The observers evaluated the subjective image quality and the visibility of 3 components of the TMJ: disk, condyle, and articular eminence. The images were ranked on a 4-point scale, from poor to excellent. The image quality of all filtered images was compared by using the chi(2) test and Bonferroni correction for multiple comparisons. Results. Intra- and interobserver concordance was good. The images filtered with Sharpen 1 and Sharpen 2 provided better definition of the structures compared with nonfiltered images, providing the highest scores for subjective image quality for all structures (P < .0001) . Conclusions. The use of enhancement filters led to improved subjective quality and may improve the diagnostic efficacy of MRI in TMJ evaluation. (AU)

• Processo FAPESP: 12/16953-4 - Investigação das características das maloclusões em crianças com lúpus eritematoso sistêmico juvenil: estudo clínico e por volumetria de imagens de ressonância magnética
• Beneficiário: André Luiz Ferreira Costa
• Modalidade de apoio: Auxílio à Pesquisa - Regular