超声光散射成像与全数字化乳腺摄影对乳腺肿瘤诊断的对比研究

目的 比较超声光散射成像(OPTIMUS)与全数字化乳腺摄影(FFDM)对乳腺肿瘤的诊断价值.方法 64例拟诊乳腺肿瘤患者,术前采用双盲方法均行OPTIMUS和FFDM检查,以手术病理结果作为对照,判断肿块的良、恶性质.采用x2检验,将OPTIMUS结果与FFDM结果作对比分析.结果 经OPTIMUS和FFDM检查均检测到65个乳腺肿块.OPTIMUS结果与病理结果比较,诊断正确率为86.2%(56/65),敏感度为87.0%(20/23),特异度为85.7%(36/42),阳性似然比6.09,阴性似然比0.175.FFDM诊断正确率为73.8%(48/65),敏感度为82.6%(19/23),特异度为71.4%(30/42),阳性似然比2.891,阴性似然比0.243.经统计学分析,术前OPTIMUS与FFDM检查对乳腺肿瘤定性诊断差异无统计学意义(x2=3.077,P＞0.05).结论 OPTIMUS与FFDM诊断水平相当,二者优势互补,能够成为当前乳腺疾病影像诊断技术有效的、必要的补充手段.

Comparative study of ultrasonography-guided optical imaging system and full-field digital mammography in breast neoplasms

Objective To compare the diagnostic values of US-guided optical imaging system (OPTIMUS) and full-field digital mammography (FFDM) in breast neoplasms. Methods Sixty-four patients suspected of breast neoplasms underwent OPTIMUS and FFDM before surgery. All patients were proved histopathologically. The accuracy of diagnosis was compared with chi-square test. Results Sixty-five masses were delineated by OPTIMUS and FFDM. The diagnostic accuracy, sensitivity and specificity of OPTIMUS were 86. 2% ( 56/65 ), 87.0% ( 20/23 ) and 85.7% ( 36/42 ), respectively. The positive likelihood ratio was 6. 09 and the negative likelihood ratio was 0. 175. The diagnostic accuracy, sensitivity and specificity of FFDM were 73.8% (48/65), 82. 6% ( 19/23 ) and 71.4% (30/42), respectively. The positive likelihood ratio was 2. 892 and the negative likelihood ratio was 0. 243. There were no significant differences between OPTIMUS and FFDM ( x2 = 3. 077 ,P ＞ 0. 05). Conclusion OPTIMUS is similar and supplementary to FFDM for the diagnosis of breast neoplasms.