Cine CT demonstration of nonfixed XXXX .

@entity1 @entity825 @entity1844 @entity387 @entity12390 @entity8822 @entity1224
Cine CT, with its very rapid imaging capabilities, was used to evaluate eight adult @entity1 suspected of nonfixed @entity1224 . A method was developed for such imaging, which provides 10 images at each of 12 contiguous levels, extending from the soft palate through the extrathoracic @entity825 . These give a dynamic view of the airway during at least one full respiratory cycle and take about 6 sec to obtain. Results were compared with similar studies in 10 normal volunteers. Seven of the @entity1 showed intermittent obstruction on cine CT, while the eighth was judged normal. All results agreed with subsequent further investigations or confirmed clinical diagnoses. The pathology demonstrated @entity1844 , @entity8822 , and @entity12390 . Four @entity1 were evaluated for @entity387 . All showed dynamic abnormalities of the airway, although they were studied awake and asymptomatic, during normal quiet respiration. All were subsequently shown to have severe @entity387 . We conclude that cine CT has the potential to provide information quickly and noninvasively on upper airway dynamics and has certain definite advantages over conventional studies.
