螺旋CT三维重建对中央型肺癌的临床应用价值

目的 评价螺旋CT三维重建成像技术对中央型肺癌的临床应用价值。方法 对42例中央型肺癌患者行CT仿真内镜（CTVB）和表面遮盖法重建（SSD）检查，并与手术、FOB所见及病理结果相对照。结果 CTVB主要是观察中央型肺癌腔内肿块、局限性隆起、管腔狭窄及管壁增厚等形态改变，结合多平面重建（MPR）能观察肿瘤的位置、范围及邻近组织侵犯的情况，SSD显示气管、支气管树的整体形态以及管腔的外部特征，它们互为补充。结论 螺旋CT三维重建有助于中央型肺癌术前诊断分期、为手术方案的选择、治疗后疗效判断及术后残端肿瘤的复发临控提供客观依据，是有创性纤维支气管镜检查的有效补充手段。

The Clinical Application Value of Three-Dimensional Imaging Technique with Spiral CT in Central Lung Cancer

Objective To evaluate the clinial application value of 3D imaging technique with spiral CT in central lung cancer. Methods CT virtual bronchoscopy (CTVB) and shade surface display (SSD) with spiral CT were performed on 42 patients with central lung cancers. Results CTVB mainly showed neoplasm in lumen, local projection, bronchial stenosis and thickening of the tracheal wall. The position, location extension of tumor and the relationship with the contiguous tissues were shown well by combing CTVB with multiplanar reconstruction (MPR). SSD could facilitate understanding the whole apperances of tracheobronchial anatomy and the extraluminal feature. Conclusion 3D reconstruction with spiral CT is helpful for judging the stage of central lung cancer before operation, it can provide a impersonal foundation for selecting the operation program, therapeutic evaluation, monitoring post operative tumor recurrence of the stump, and acts an effective complement method for the invasive FOB examination.