摘要
目的 :讨论螺旋CT扫描技术在肺部疾病检查中的应用价值。方法 :3 7例经手术病理证实的肺部病变均作螺旋CT扫描检查 ,层厚 3～ 5mm ,pitch1～ 2 ,重建间隔 1～ 2mm。所有图像均在GEAdvantageWindows 2 .0工作站上进行后处理 ,重建方式为表面显示法 (SSD)和最大密度投影法 (MIP)法。结果 :3 7例 1～ 5cm大小的病灶在CT图像上全部得以显示。11例腺癌的供血血管 ,10例细小毛刺 ,3例胸膜凹陷征在图像上清晰显示。 4例结核病变中 2例显示卫星灶 ,3例显示粗长毛刺 ,3例炎性假瘤的多病灶融合状态显示良好。结论 :螺旋CT扫描技术应用于肺部 ,可以消除呼吸运动所造成的病灶丢失及运动伪影 ,无间隔重建图像可很好显示病灶及其与胸膜、血管和支气管的关系 ,从而提供更为准确的诊断 ,为外科医生提供更多细节。
Objective:To assess the thin slice technique for lung disease.Methods:37 patients with pulmonary lesion proved by operation and pathology were scanned by spiral CT.CT scanning parameters used were as follows:slice thickness 3～5mm, pitch 1～2, and reconstruction interval 1～2mm.All the images have been processed on GE advantage windows 2.0 workstation.The reforming techniques included shade surface display (SSD) and maximum intensity projection (MIP).Results:The lesions of 1～5cm diameter in 37 cases were all demonstrated on CT scans.They also showed blood vessels supplying to tumor in 11 cases of adenocarcinoma,spicular sign in 10 cases and pleural indentation sign in 3 cases.Among 4 cases of tuberculosis,satellite lesions were shown in 2 cases and long spicular sign in 3.The multifocal fusion structure of 3 inflammatory pseudotumors were clearly documented.Conclusions:Thin slice spiral CT scanning with non interval reconstruction can well display the structure of lesion and its relationship to pleura,blood vessel and bronchus. It can improve accuracy of diagnosis and provide more details.
出处
《放射学实践》
2000年第4期275-277,共3页
Radiologic Practice
