螺旋CT实时三维重建在诊断食管癌颈根部淋巴结转移中的应用  

The Application of Real Time Three-Dimensional CT in Detection of SupraclavicularRegion Lymph node Metastasis of Esophageal Cancer

作　　者：梁建英[1] 郭兴[1] 李雪鹏[1] 程秀梅[1] 冯志刚[1] 郭跃忠[1] 

机构地区：[1]长治医学院附属和平医院CT室,山西长治046000

出　　处：《实用放射学杂志》2001年第12期924-926,共3页Journal of Practical Radiology

摘　　要：目的　探讨螺旋CTRT3D成像技术在诊断食管癌颈根部淋巴结转移的临床应用价值。方法　 45例患者行强化螺旋CT扫描后将容积数据输入工作站 ,通过设定CT阈值和透明度百分率加伪彩 ,实时重建颈根部三维图像 ,并进行图像切割。结果　三种实时三维图像能较好地、多角度显示食管癌气管食管沟转移性淋巴结形态及周围相邻器官受压、浸润征象 ,不同的三维图像对不同征象的显示能力有明显差异。结论　综合运用RT3D多种成像方法 ,是CT横断图像的重要补充 。Objective To discuss real time three-dimensional reconstruction techniques of spiral CT in the detection of tracheoesophageal groove lymph node metastasis and its diagnostic value.Methods Spiral CT RT3D reconstruction of the supraclaviculrar region were applied to 45 patients with scanning and post-processing on the workstation.Mediastinum,color in chest,clip planes 3D images were obtained by adjusting the CT value threshold and encoding pseudo color techniques.Results RT3D images can correctly reveal the macroscopic morphology of lymphatic metastasis and it's pressure to the trachea and carotid artery.There were significant differennces of visualization capabilities of radiological signs among different 3D techniques.Conclusion With the utilization of multiple methods,RT3D reconstruction can play an important role in detecting tracheoesophageal groove lymph node metastasis of esophageal cancer.It is an important complement to the axial CT images and the basis of clinical treatment.

关 键 词：体层摄影 X线计算机 图像处理 淋巴结转移 食管癌 CT 

分 类 号：R735.1[医药卫生—肿瘤] R730.44[医药卫生—临床医学]