螺旋CT表面覆盖法成像对乳腺癌的诊断价值

目的　明确乳腺癌的CT征象 ,评价螺旋CT表面覆盖法成像 (SSD)对乳腺癌的诊断价值。方法　乳腺癌 3 3例 ,螺旋扫描表面覆盖法成像 ,采用立体三维表现方式将预先设置的某一CT域值范围内的相邻象素 ,经过运算生成一个立体模型的外表面 ,将同一密度值的象素点或一个区域按照正常的横断面图像的空间、位置和方向生成三维表面覆盖影像 ,并按照给出的观察方向设置相应的色彩。结果　乳腺癌CT表现为 :圆形、椭圆形或不规则形肿块 ,不均匀强化或明显强化 ,边缘毛刺 ,导管牵拉征 ,库伯韧带受累 ,沙粒样钙化 ,局部皮肤胸壁浸润及周围脂肪间隙变形 ,腋窝淋巴结转移。结论　螺旋CTSSD法对乳腺癌的诊断及鉴别诊断有一定的价值

The SSD Technique Applied in Spiral CT Diagnosis of Breast Carcinoma

Objective Identify CT signs of breast cancer and evaluate the value of the shaded-surface display technique in spiral CT diagnosis of breast cancer.Material:33 cases of breast cancer were analysed.Methods All of patients underwent spiral CT contrast enhanced scans in SSD technique.Results The CT appearances of breast cancer were round or irregular mass,spiculated border,duct retraction,involved coopers lignment,microcalcification,deformed adipose space and axillary lymph nodes contained metastases.Conclusion The SSD technique has proved to be of great value in spiral CT diagnoses and differential diagnoses of breast cancer.