Traktografia rezonansu magnetycznego w diagnostyce neuroradiologicznej
Journal Title: Otolaryngologia Polska - Year 2009, Vol 63, Issue 5
Abstract
Diffusion tensor imaging is unique in its ability to non-invasively visualize white matter fiber tracts in the human brain in vivo. White matter fiber bundles of the human brain form a spatial defined by the anatomical and functional architecture. Determination of axonal pathways provides an invaluable means to study the connectivity of human brain and its functional network. Comparison of fiber tract properties across subjects requires comparison at corresponding anatomical locations. In this paper, we present application of white matter tractography method based on incoherent motion of water molecules in fiber tissue, mainly in central nervous system. This motion is itself dependent on the micro-structural environment that restricts the movement of the water molecules. In white matter fibers there is a pronounced directional dependence on diffusion. With white matter fiber tracking or tractography, projections among brain regions can be detected in the three-dimentional diffusion tensor dataset according to the directionality of the fibers. The authors indicate diagnostic possibilities of MR tractography in otolaryngology for imaging the nervous tracts of sense of hearing, smell and taste with particular consideration of otoneurological evaluation of patients with cochlear implants and bone anchored hearing aid (BAHA). White matter tracts can be evaluated independently by using diffusion tensor tractography, which appears to be a promising technique for determining changes in white matter in degenerative disease. The authors also indicate that method as a beneficial in the surgical planning for patients with intrinsic brain tumors.
Authors and Affiliations
Tatiana Gierek, Jarosław Paluch, Przemysław Pencak, Beata Kaźmierczak, Lucyna Klimczak-Gołąb
Keywords
Related Articles
- EP ID EP51800
- DOI -
- Views 166
- Downloads 0
Gruźlica krtani u pacjentów leczonych w klinice otolaryngologii – opis dwóch przypadków
Tubercular infection is still one of the most serious health and social problems. It’s been estimated that one-third of the population is infected with Koch’s bacillus. More than 90% of overall morbidity of tuberculosis...
Leczenie inwazyjnej grzybicy zatok przynosowych – opis przypadku
The frequency of fungal etiology of sinusitis contains between 9 and 49 % according to different authors. Fungal rhinosinusitis has been divided into noninvasive and invasive forms. Noninvasive infections include fungus...
The analysis of the bacterial and fungal flora in maxillary sinuses in patients operated due to FESS method
Introduction. The aim of this work was to analyse the bacterial and fungal flora in maxillary sinuses in patients operated due to the FESS method. Material and methods. Studies were conducted on 110 patients, including 4...
Biocompatible membrane of PDMS for the new chamber prosthesis stapes
Stapes protheses are designed for patients with otosclerosis resulting immobilization or significant reduction of the stapes mobility. All currently used prostheses are called – piston prosthesis. However, its use to sti...
Laryngologiczny obraz refluksu krtaniowo-gardłowe doświadczenia własne w diagnozowaniu i leczeniu
Introduction: For many years the specialists, have been interested in gastroesophageal reflux. The aim of the work is to present our experience in the diagnosis and the treatment of laryngopharyngeal reflux. Material and...