摘要
探讨低剂量螺旋CT扫描及图像后处理技术在小儿气管、支气管异物术前诊断的临床应用价值。选取临床高度怀疑,X线诊断不甚明确的气管、支气管异物,行螺旋CT轴位扫描及MPR、CTVB图像后处理确诊为气道异物的211例为研究对象。根据CT异物所在气道位置及引起并发症程度建立分型标准,并以支气管镜检术结果为对照,比较各型异物在X线及CT图像后处理前后的诊断准确性差异并分析各型异物特点。I型、II型、III型异物X线、CT轴位、CT轴位加后处理诊断准确率分为:9.52%、64.29%、44.44%;100.00%、93.51%、77.78%;100.00%、98.70%、97.22%。经统计学配对χ2检验,P<0.05,CT轴位加后处理诊断准确率优于前两者。螺旋CT低剂量扫描及后处理技术可作为小儿气道异物阻塞术前检前最安全、最准确、最快捷的筛查的首选手段。
To investigate low - dose spiral CT and MPR in diagnosing the foreign body in trachea and bronchi in children before the operation. Low - dose spiral CT , MPR and CTVB were performed in 211 patients with foreign body in trachea and bronchi, and the results of the bronchi endoscopy were com- pared. The foreign bodies were divided into three types on the basis of their location. The accordance rate of X ray, CT, MPR and CTVB in diagnosing the foreign body in trachea and bronchi（type I, type Ⅱ, type Ⅲ） is 9.52%, 64.29%, 44.44% ; 100.00%, 93.51% , 77.78% ; 100.00%, 98.70%, 97.22%, respectively. The sensitivity of low- dose spiral CT, MPR and CTVB was the best, then the CT and X - ray. The re- sults of CT were coincidence with the results of endoscopy. Low - dose spiral CT , MPR and CTVB had significant clinical value in diagnosing the foreign body in trachea and bronchi in children.
出处
《中国医学计算机成像杂志》
CSCD
北大核心
2009年第5期444-449,共6页
Chinese Computed Medical Imaging
基金
哈尔滨市优秀学科带头人科技计划项目(2007RFXQS035)
