摘要
目的探讨64层螺旋CT超高分辨率扫描技术在肺部小结节诊断中的应用价值。方法对19例肺部小结节分别行常规扫描和局部靶扫描,进行512矩阵及超高分辨率1024矩阵重建,对比观察病灶分叶、毛刺、肿块密度及邻近胸膜改变,同时重建显示病灶整体形态,观察局部支气管的变化。结果常规高分辨率和超高分辨率在测量结节病灶的分叶深度有差异。8例动态增强扫描CT值的测量方面2者有差异。本组1例肺泡癌呈磨玻璃结节影,2者显示有差别,超高分辨率靶扫描更支持恶性诊断,更接近术后病理形态。在显示局部小气道明显狭窄、中断方面无明显差异;但在显示病灶内穿行的小气道轻度狭窄和通畅方面,40%的患者有差异。结论超高分辨率CT对肺小结节的立体形态、局部支气管改变显示更清晰,尤其对肺微小结节和局灶磨玻璃影的定性诊断具有重要价值。
Objective To explore the application value of 64 - spiral CT super - high resolu- tion screening technique in diagnosis of pulmonary nodules. Methods Nineteen cases of patients with pulmonary nodules received routine screening, local target screening, and reconstruction with 512 matrix and super- high resolution CT （1 024 matrix）. The changes of leaflet, rag, mass densi- ty and pleura nearby were compared. Meanwhile the total reconstruction shapes of nidi were dis- played and the alternatives of local bronchial were observed. Results There were differences be- tween the high resolution and super - high resolution in detecting the leaflet depth of nodules. There were differences in detecting 8 cases in terms of dynamically enhancing CT value. One case of pul- monaryalveoli cancer showed ground glass nodules. There were differences between the two meth- ods. The super- high resolution screening supported the malignancy diagnosis more and approached the pathology post surgery. There： were differences between the stenosis and local small air path. There were differences in 2/5 patients in slight stenosis and unobstruction of mall air path. Conclu- sion The super- high resolution CT can display the stereoscopic shape of pulmonary nodules and local alternatives of bronchial more clearly, especially in the qualitative diagnosis of pulmonary micro - nodules and local ground glass shadow.
出处
《实用临床医药杂志》
CAS
2011年第24期179-180,共2页
Journal of Clinical Medicine in Practice
关键词
肺结节
肺癌
高分辨率
体层摄影术
X线计算机
pulmonary nodules
lung cancer
super-high resolution
tomography
X-ray computer
