48例乳腺癌的影像特征分析

Imaging diagnosis of 48 cases of breast cancer

目的探讨乳腺癌的影像表现特点,以提高影像诊断水平。方法回顾性分析经手术病理证实的乳腺癌48例患者资料,均进行了超声与数字乳腺钼靶和CT检查。采用行×列χ2方法比较超声与数字钼靶、CT诊断乳腺癌的准确性。结果乳腺癌数字乳腺钼靶表现为不规则星芒状边缘肿块伴多形性钙化、单纯性星芒状边缘的肿块、单纯钙化、乳腺结构紊乱和结构紊乱并钙化;CT表现不规则软组织肿块,边缘毛刺,肿块内外伴有和(或)不伴有钙化及肿块周围脂肪间隙变形,同时可发现腋窝淋巴结肿大、双肺改变;超声表现分叶状或蟹足状的不规则肿块,肿块回声不均,可有细小强回声团,CDFI在肿块内及周边可探及丰富血流信号。数字钼靶检查准确诊断乳腺癌46例,误、漏诊2例。CT检查准确诊断44例,误诊4例。超声检查准确诊断40例,漏、误诊8例。超声与数字钼靶、CT诊断乳腺癌差异无统计学意义(P=0.361)。手术证实腋窝淋巴结转移15例,CT检查准确诊断腋窝淋巴结转移9例,数字钼靶和超声检查准确诊断6例,三者之间差异无统计学意义(P=0.481)。结论影像检查可为乳腺癌的诊断提供可靠依据,手术前常规CT检查有价值。

Objective To analyze the imaging feature of breast cancer. Methods Forty-eight paitents with breast cancer proved pathologically underwent imaging examination. Ultrasonography （US） CT and diagital mammography were preformed in all 48 patients. The accuracy of breast cancer was compared between US,CT and digital mammography with Crosstabs test. Results Irregular soft tissue mass with microcalcification, simple microealcification, simple irregular soft tissue mass, architeetual distortion and architectual distortion with microcalcification were showed on digital mammography. Irregular soft tissue mass,mass with microcalcification which into or onto and around fat with distortion were found on CT. Irregular soft tissue mass with tin strong echofree on US. There was abundant blood sign around the mass or in the mass on CDFI. Breast cancer were correctly diagnosed in 46 cases on digital mammography,44 cases on CT,and 40 cases on US. Two cases were misdiagnosed or miss-diagnosed on digital mammography,4 cases were misdiagnosed on CT and 8 cases were misdiaginosed or miss-diagnosed on US. There was no significant diffrence between US and CT/ digital mammography in diagnosis of breast cancer（P 0. 361）. The axillary lyrnph node（LN） meatastases were pathologically in 15 cases. The axillary LN meatastases were correctly diagnosed in 9 cases on CT,and 6 cases on US or digital mammography. There was no significiant difference between US and CT/ digital mammography（P=0. 481）. Ct. closion US and CT/ digital mammography is useful for diaginosis of breasr cancer. CT is valuable for diagnosis of LN meatastases.