Journal of Otolaryngology and Ophthalmology of Shandong University ›› 2019, Vol. 33 ›› Issue (2): 90-94.doi: 10.6040/j.issn.1673-3770.0.2018.368

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Value of 128-slice CT 3D reconstruction in the Müller state in the evaluation of the upper airway obstruction plane in patients with OSAS

ZHANG Bingwen1, CHEN Rongrong1, WU Yuanqing1, XU Jinjing1, JIANG Liang2, QI Jianwei1   

  1. Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, Jiangsu, China
  • Published:2019-03-28

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Abstract: Objective To explore the value of airway thin-layer scanning and three-dimensional reconstruction in 128-slice computed tomography(CT)in the assessment of upper airway obstruction in patients with obstructive sleep apnea syndrome(OSAS)in the Müller state. Methods Forty-two adult patients with moderate or severe OSAS in the state of quiet breathing and Müller maneuver(analog sleep breathing state)underwent 128-slice thin axial CT. CT software was used for the three-dimensional reconstruction of the upper airway, and the two states were examined and compared under the same planes of the cross-sectional area of retropalatal region. The warp length, length and thickness of the soft palate uvula, vertical length from the hard palate to the upper posterior part of the hyoid, and other parameters were evaluated. Results Compared with the quiet breathing state, except for the area under the Müller state, diameter differences before and after the area after the epiglottis were statistically significant(t=1.837, P=0.073). The rest of the plane blocked the left and right anteroposterior diameter based on the equal line measurement and cross-section. There were significant differences in the area(t=6.214, 6.969, 8.192, respectively; all P<0.001). The left and right areas of the tongue, front and rear diameters, and cross-sectional area t were 6.170, 2.510, and 8.579, respectively, and P was<0.001, 0.016, and<0.001, respectively. The left and right areas of the epiglottis area and transverse area t were 4.279 and 6.104, respectively, and all P values were <0.001. The differences in soft palate thickness and soft palate and uvula length were statistically significant(t=-4.473 and 5.724, respectively; all P<0.001). The position of the hyoid bone moved downward, and the difference was statistically significant(t=-6.302, P<0.001). Conclusion The three-dimensional reconstruction of the upper airway on 128-slice CT can better assess patients with OSAS in the airway obstruction plane, in favor of blocking the classification plane, and the value of predicting the outcome of estimated UPPP surgery can be estimated, providing references to patients with OSAS for individualized treatment.

Key words: Sleep apnea syndrome, Upper airway, Computed tomography, Three-dimensional

CLC Number: 

  • R714.253
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