摘要
目的探讨二维（２Ｄ）及三维（３Ｄ）螺旋ＣＴ对周围型肺癌的诊断和临床应用价值。材料与方法３４例周围型肺癌行螺旋ＣＴ扫描（层厚１～３ｍｍ）且行三维重建，三维重建方法包括遮盖表面显像（ＳＳＤ）和多平面重建（ＭＰＲ）。结果２ＤＣＴ能较好显示周围型肺癌内部结构，边缘毛利及分叶，病灶与肺内血管、胸膜、纵隔结构的关系，但只能以横断面显示，范围较局限。ＳＳＤ显示肿块整体形态、分叶，肿块侵犯胸膜及与支气管关系方面优于２ＤＣＴ，图或直观，立体感强，但显示肿块内部结构及边缘毛利差。ＭＰＲ可以从多个方面显示肿块与胸膜、纵隔结构的关系，准确显示纵隔及肺门肿大淋巴结位置。结论 以２Ｄ螺旋ＣＴ为基础，结合ＳＳＤ及ＭＰＲ３ＤＣＴ图像是诊断和评价周围型肺癌最有效的方法之一，ＳＳＤ及ＭＰＲ ３ＤＣＴ图像直观，对其分期、术前评估及指导支纤镜活检和手术治疗有重要价值。
Purpose To assess the diagnostic and clinical application value of 2D,3D spiral CT in peripheral pulmonary carci noma. Materials and methods (34 patients with)peripheral pulmonary carcinoma were examined by spiral CT(1mm - 3mm slice thickness),SSD and MPR reconstruction were used as three-dimensional models. Results 2DCT could reveal intratumor architec ture, bordered lobulation and spiculum, and the relationship of tumor to pleura, pulmonary vessels,mediastinal structure. SSD was supe rior to 2DCT in showing the whole shape and lobulation of tumor,relationship of tumor to pleura and bronchus,without showing intra tumor structure and bordered spiculum. MPR was sperior to 2DCT in showing the relationship of tumor to pleura,mediastinal large vessels and lymphaden. Conclusion 2D associated 3D spiral CT are an effective method in diagnosing and evaluating peripheral pul monary carcinoma and MPR have important value in directing bronchoscope biopsy and surgical treatment.
出处
《医学影像学杂志》
2000年第2期72-74,共3页
Journal of Medical Imaging
关键词
周围型肺癌
体层摄影术
X线计算机
Peripheral pulmonary carcinoma Tomography,X-ray computed
