多层螺旋CT三维重建对乳腺癌的术前评估

目的 探讨多层螺旋CT（MSCF）的三种重建方法对乳腺癌术前评估的准确性和对乳腺手术的指导价值。方法 对40例乳腺癌在术前采用MSCT扫描及MPR、MIP、VR重建。与术后病理结果对照分析MSCT的三种重建方法对乳腺癌病灶、邻近结构及腋窝淋巴结的显示情况。结果40例乳腺癌中，23例表现为形态不规则的肿块，17例呈边缘有分叶、毛刺的类圆形肿块，35例增强后呈不均匀强化，5例与乳晕粘连，7例伴有局部皮肤增厚，3例侵犯胸壁，17例术前发现合并腋窝淋巴结转移。结论 以轴位薄层增强扫描信息为基础，MSCT的三种重建方法对乳腺癌灶的范围、位置，邻近组织结构及腋窝淋巴结情况的评估更为准确，对术前准确诊断和指导外科手术方案的制订具有较大的价值。

The preoperative evaluation of breast cancer by multi-Slice helical CT reconstruction

Ohjective To evaluate the accuracy of multi - slice helical CT three reconstruction methods in preoperative evaluating and surgical planning of breast cancer. Methods 40 cases breast cancer verified pathologically were examined by MSCT scanning with MPR, MIP and VR reconstructions before surgical treatment. Compared with pathological result, the imaging signs of breast tumors, surrounding structures and axillary lymph nodes were analyzed. Results Among the 40 cases breast cancer, there were 23 cases manifested as irregular masses, 17 cases manifested as round tumors with spiculated and segmental border, 35 cases enhanced inhomogeneottsly, 5 cases showed nipple adherence, 7 cases presented skin incrassation, 3 cases displayed chest wall invasion, and 17 cases detected preoperatively the lymph node metastasis.Conclusion Based on the axial thin scarming, the three reconstruction methods of MSCT can accurately evaluate the extent and location of breast tumors, surrounding structures and axillary lymph nodes status, and it was very valuable in accurate preoperative diagnosis and surgical treatment.