Dynamic study of the upper airway with ultrafast spoiled GRASS MR imaging.

F. G. Shellock, C. J. Schatz, P. M. Julien, J. M. Silverman, F. Steinberg, T. K. Foo, M. L. Hopp, P. R. Westbrook

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Dynamic magnetic resonance (MR) imaging of the upper airway was not possible previously because of poor temporal resolution. Recently, a rapid technique has been developed that provides the means to obtain multiple images at different section locations with sufficient image quality and temporal resolution to allow a comprehensive, dynamic study of the upper airway. The authors describe an ultrafast spoiled GRASS (gradient-recalled acquisition in the steady state) pulse sequence for dynamic studies of the upper airway. The authors believe that this procedure has potential for identifying and characterizing upper airway abnormalities such as nonfixed occlusions and/or narrowings that may exist in patients with obstructive sleep apnea.

Original languageEnglish (US)
Pages (from-to)103-107
Number of pages5
JournalJournal of Magnetic Resonance Imaging
Issue number1
StatePublished - Jan 1992
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology


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