Počet záznamů: 1
Data Processing in Studying the Temporomandibular Joint, Using MR Imaging and Sonographic Techniques
0336796 - UPT-D 2011 RIV GR eng C - Konferenční příspěvek (zahraniční konf.)
Liberda, O. - Bartušek, Karel - Smékal, Z. - Mikulka, J.
Data Processing in Studying the Temporomandibular Joint, Using MR Imaging and Sonographic Techniques.
DSP 2009 - 16th International Conference on Digital Signal processing. Patras: HOU, 2009, 5201218:1-6. ISBN 978-1-4244-3297-4.
[DSP 2009 - International Conference on Digital Signal processing /16./. Santorini (GR), 05.07.2009-07.07.2009]
Grant CEP: GA ČR(CZ) GA102/07/1086
Výzkumný záměr: CEZ:AV0Z20650511
Klíčová slova: MRI * sonography * temporomandibular joint * wavelet transform * image segmentation.
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika
The temporomandibular joint is one of the most complicated joints in the human body. Diagnosing its disorders is difficult because the pain is mistakenly taken for toothache, pain in the jaw bones, etc. The paper deals with a post-processing tomographic examination of temporomandibular joint. An interesting post-processing method was used to increase the contrast related to relaxation time T2. Both increasing the contrast and enhancing the arthritic region were realized by processing two MR images in different echo-times. The enhancement rate is realized on the basis of subjective MR image evaluation by the surgeon. Magnetic resonance images (MRIs) are of very low resolution and contrast. An appropriate algorithm has been found, which consists of preprocessingthe image by a smoothing filter, focusing, and four-phase level set segmentation.
Trvalý link: http://hdl.handle.net/11104/0180951