多层螺旋CT对阻塞性睡眠呼吸暂停低通气综合征手术前后疗效评价研究

目的：探讨阻塞性睡眠呼吸暂停低通气综合征（Obstructive sleep apnea-hypopnea syndrome，OSAHS）患者，手术前后上气道狭窄程度的变化。方法：选择我院2007年12月~2009年5月，经专科检查及多导睡眠监测（Polysomnography，PSG）确诊为OSAHS患者10例，于术前、术后行多层螺旋CT（MSCT）容积扫描，所获数据进行计算机后处理重建，观察上气道形态学变化，测量其最小截面积、相应径线、体积及软腭长度，并将患者术前与术后测值进行比较。结果：本组病例上气道各层面情况：术前上气道总体积（UAV）值为（7.22+2.03）cm3、舌后区体积（RGV）值为（3.07+1.18）cm3、舌后区（RG）最小截面积（XSA）值为（122.06+66.38）mm2、前后径（APD）值为（10.39+3.64）mm、 左右径（LRD）值为（14.56+5.96）mm、软腭长度（SPL）值（42.20+7.80）mm；术后UAV值为（13.09+7.64）cm3、RGV值为（8.16+5.25）cm3、RG区XSA值为（260.93+117.38）mm2、APD值为（13.49+5.71）mm，LRD值为（24.39+7.22）mm、SPL值（32.15+4.88）mm，将上述所测数据，应用配对t检验发现：术后、术前比较有显著性差异，其中APD、UAV 2项指标P<0.05；VRG、XSA、LRD、SPL 4项指标P <0.01。结论：多层螺旋CT可对OSAHS患者，在实施改良腭咽成形术（Uvulopalatopharyngoplasty，UPPP）＋颏舌肌前移术或颏前移手术前后的上气道情况作客观评价，有较高的临床应用价值。

The study of MSCT perioperative evaluation of therapic effect in OSAHS patients

Objective: To explore variation of upper airway constriction in obstructive sleep apnea-hypopnea syndrome(OSAHS) patients perioperatively. Methods: Ten OSAHS patients confirmed by physical examination and polysomnography(PSG) were examined by MSCT volume scanning perioperatively. Post processing and reconstruction were performed. To observe morphologic changing of upper airway, measure its minimum section area, diameter, volume and the length of soft palate, the preand post-operative data were compared. Res...