Study of low dose and dynamic multi-slice CT about obstructive sleep apnea syndrome in sleeping
- VernacularTitle:阻塞性睡眠呼吸暂停综合征患者睡眠状态下低剂量多层螺旋CT研究
- Author:
Jie SHEN
;
Ji QI
;
Jianzhong YIN
- Publication Type:Journal Article
- Keywords:
Sleep apnea, obstructive;
Tomography, X-ray computed;
Anthropometry
- From:
Chinese Journal of Radiology
2001;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To perform Low dose dynamic MSCT( multi-slice CT) in sleeping obstructive sleep apnea syndrome ( OSAS) patients correcting the imprecise measure values in waking state, and to exactly analyse the location and extension of the dynamic changes about the condition. Methods Sixteen OSAS patients were scanned both in waking and naturally sleeping period ( end phase of inspiration and expiration). Measured at the narrowest part of the retropalatal ( RP) and retroglossal ( RG) and 5 mm under the tip of epiglottis at the epiglottal ( EPG) at the end period of inspiration in sleeping, respectively, and compared the accurate pos(?)on of the narrowest or occlusive level in 3 phases. All patients were also scanned using cine mode at the narrowest level at the end period of inspiration in sleeping to show the pharyngeal cavity changes during sleep. Results The smallest XSA of RP region (Mw = 47. 50 mm2 ,Me =73. 00 mm2 , Mi =2. 00 mm2 ;Zwe =2. 897,Pwe =0. 003 ;Zwi =4. 192,Pwi
