MRT der Halswirbelsäule mit T1-gewichteten mehrschichtfähigen FLASH-Sequenzen

Autor:	U. Tosch, R. Felix, B. Sander, Lanksch Wr, P. Schubeus, Wolfgang Schörner
Rok vydání:	1990
Předmět:	Physics Image quality business.industry media_common.quotation_subject Intervertebral disc Cervical spine Image degradation Image contrast medicine.anatomical_structure Compact bone medicine Contrast (vision) Radiology Nuclear Medicine and imaging Multislice Nuclear medicine business media_common
Zdroj:	RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 153:461-466
ISSN:	1438-9010 1438-9029
Popis:	A study has been carried out to evaluate contrast and image quality of cervical structures using multislice 2D-flash sequences with long repetition times (TR = 400 ms.) and short echo delay times (TE = 5.8 ms.). The examinations were carried out using ten normals with an MRI of 1.5 Tesla and flip angles of 10, 20, 30, 50, 70 and 90 degrees. The best contrast between intervertebral disc and surrounding tissue was obtained between 50 and 70 degrees, best contrast between compact bone and CSF with 10 degrees. In order to demonstrate degenerative changes of the cervical spine, it appears sensible to use a combination of these angles. The described sequences produce good images of the cervical structures with little image degradation. Compared to T1-weighted spin-echo sequences, the method has a number of significant advantages, such as variations in image contrast, higher maximal number of slices, contiguous imaging and less imaging time.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::759970be8b6c4ce64f58433c17d6b997 https://doi.org/10.1055/s-2008-1033415 Zobrazit plný text záznamu