Upper airway motion analysis in obstructive sleep apnea syndrome (OSAS) via dynamic MRI
21 February 2022 • 6:00 PM - 7:30 PM PST | Golden State Hall
We propose a novel method to compare Obstructive sleep apnea syndrome (OSAS) patients with control subjects during awake and asleep states to assess the regional dynamic changes that occur in specific locations of the upper airway as detected via dynamic MRI. Firstly, we segment the 3D upper airway. Then, different types of cycles are selected. For each cycle, we calculate the distance of each point on the surface from end-expiration to end-inspiration. The upper airway is divided into 4 parts manually. There are several novel observations observed, which may provide some insight into the pathophysiology of OSAS.
Univ. of Pennsylvania (United States)