超声成像与钼靶X线摄影对乳腺癌肿瘤大小术前评价的对比研究

The preoperative size measurement of breast cancer by ultrasonography and mammography

目的对比分析超声成像及钼靶X线摄影对原发性乳腺癌肿瘤大小的术前诊断价值。方法对我院2006年7月至2009年7月手术病理证实的原发性乳腺癌术前同时完成超声及钼靶X线成像检查患者影像资料进行回顾性分析,以手术病理证实的病灶大小为诊断标准,分别对超声成像、钼靶X线摄影术前测量肿瘤的大小与手术病理结果进行Pearson相关分析。结果术前完成超声、钼靶X线摄影检查的57例经手术病理证实乳腺癌患者,包括51例浸润导管癌、4例浸润型小叶癌、2例原位导管癌。手术病理证实肿瘤大小范围是0.6～12.6cm,平均(3.4±2.9)cm,超声成像测量肿瘤大小范围0.6～11.8cm,平均(2.3±2.1)cm,钼靶X线摄影测量肿瘤大小范围0.7～10.2cm,平均(2.4±1.8)cm。超声成像测量肿瘤大小与手术病理结果相关系数r=0.749(P<0.05)。钼靶X线摄影测量肿瘤大小与手术病理结果相关系数r=0.544(P<0.05)。结论超声成像对原发乳腺癌肿瘤大小的术前评价较钼靶X线摄影更为准确。

Objective To comparatively analyze the preoperative value of the size of primary breast cancer presenting as a mass by ultrasonography and by mammography. Methods The tumor size data obtained preoperatively by mammography and by ultrasonography were retrospectively analyzed in all the patients pathologically diagnosed with primary breast cancer in our hospital from July 2006 to July 2009. The Pearson correlation coefficient was calculated for the size of tumors between with pathological method and with each of the imaging modalities. Results A total of 57 patients with breast cancers took both of imaging modalities including 51 cases of infiltrating ductal cancer,4 cases of infiltrating lobular cancer,and 2 of ductal carcinoma in situ. The ranges of the maximum diameter of tumor was 0.6-11.8 cm and mean value was （2.3±2.1） cm by pathological examination,0.6-12.6 cm and mean value was （3.4±2.9）cm by mammography and 0.7-10.2 cm and mean value was （2.4±1.8）cm by ultrasonography,respectively. The Pearson correlation coefficient in the accuracy of imaging assessments was superior to those by ultrasonography （r=0.744,P0.05） than those by mammography （r=0.544,P0.05）. Conclusion Ultrasonography is more accurate than mammography for size assessment of primary breast cancer.