Publikation

Evaluation of the anatomical and functional properties of deglutition with various kinetic high-speed MRI sequences

Wissenschaftlicher Artikel/Review - 01.08.2001

Bereiche
PubMed

Zitation
Anagnostara A, Stöckli S, Weber O, Kollias S. Evaluation of the anatomical and functional properties of deglutition with various kinetic high-speed MRI sequences. J Magn Reson Imaging 2001; 14:194-9.
Art
Wissenschaftlicher Artikel/Review (Englisch)
Zeitschrift
J Magn Reson Imaging 2001; 14
Veröffentlichungsdatum
01.08.2001
ISSN (Druck)
1053-1807
Seiten
194-9
Kurzbeschreibung/Zielsetzung

We evaluated various fast MR sequences for obtaining anatomical and dynamic functional information during deglutition. Seven healthy volunteers underwent MRI of the oropharynx during swallowing of an oral positive-contrast agent. Single-slice imaging was performed in the median sagittal plane while subjects were in a supine position. Twenty serial images were obtained using EPI, FLASH, and turbo-FLASH sequences. The dynamic (movement-related) information and the anatomical resolution of the soft tissues were evaluated during deglutition. The FLASH sequence provided high-quality images at rest. During swallowing, however, the images were significantly degraded by movement artifacts and had inferior temporal resolution. The EPI evidenced better temporal resolution, but was degraded by strong distortions and movement artifacts. The turbo-FLASH sequence provided the best temporal resolution and sufficient spatial resolution during motion. This sequence proved optimal for the investigation of swallowing function, and is expected to be of value for the documentation of functional disturbances in patients with oropharyngeal pathology.