四肢骨肿瘤及肿瘤样病变螺旋CT三维影像图像质量控制及应用研究

目的：探讨螺旋CT三维影像（SSD）和MPR）在四股骨肿瘤和肿瘤样病变中的应用价值和技术要点。方法：研究53例经手术病理证实的四肢骨肿瘤和肿瘤样病变患者的螺旋CT横轴位及三维影像。统计重建图像质量优劣。结果：SSD图像质量优秀41例（77．4％），良好8例（15．1％），较差4例（7．5％），MPR图像质量优秀40例（75．5％），良好9例（17．0％），较差4例（7．5％），结论：螺旋CT横轴位结合SSD和MPR图像能提供肢体骨肿瘤样病变非常有价值空间结构信息，其表现接近病理解剖，临床应用价值大，利于临床医生选择治疗方案和制定手术计划。

The Quality Control and Clinical Study on Three-dimensional Imaging of Spiral CT in Bone Tumor and Tumor-like Conditions of Extremities

Objective To study the evaluation of three-dimensional imaging of spiral CT(SSD and MPR) in bone tumor and tumor-like conditions and its pertinent technique.Methods 53 cases of bone tumor and tumor-like conditions proved by surgery and pathology,SSD and MPR of spiral CT were studied prospectively.Recore the quality of the restruction image.Results Among 53 cases of SSD imaging,41 pictures were excellent(77.4%),8 good (15.1%) and 4 inferior(7.5%). On the other hand,among the 53 cases of MPR imaging,40 pictures were excellent(75.5%),9 good(17.0%) and 4 inferior(7.5%).Conclusions Transaxial imaging together with SSD and MPR can afford very valuable information about the bone tumor and tumor-like conditions of extremities,which agree well with that of pathological anatomy.Surgeon will benefit greatly from their usefulness as a method of choice in surgical intervention and planning.