动态增强MRI对致密型乳腺中T1及Tis期乳腺癌诊断的价值

Diagnostic value of dynamic contrast-enhanced MRI in T1 and Tis phases breast cancer of dense gland

目的:比较动态增强MRI与乳腺DR钼靶对致密型乳腺T1及Tis期乳腺癌诊断的价值。方法:选取72例致密型乳腺患者,分别进行动态增强MRI检查及乳腺DR钼靶检查,采用χ~2检验比较两种检查中T1及Tis期乳腺癌的检出率和诊断准确率。结果:对致密型乳腺患者,T1及Tis期乳腺癌的检出率动脉增强MRI为79.17%(57/72),乳腺DR钼靶为41.67%(30/72),两者差异有统计学意义(P<0.05);动脉增强MRI检查的准确率为72.22%(52/72),乳腺DR钼靶检查的准确率为37.50%(27/72),两者差异也有统计学意义(P<0.05)。结论:动脉增强MRI能明显提高致密型乳腺患者中T1及Tis期乳腺癌的检出率及准确率。

Objective： To compare the value of dynamic contrast-enhanced MRI（ DCE-MRI） and breast DR mammography in the diagnosis of T1 and Tis breast cancer of dense gland. Methods： Seventy-two patients with dense glandular type were examined by DCE-MRI and DR mammography respectively. The detected ratio and diagnostic accuracy of the two methods were compared by chi square test. Results： Detected ratio of the T1 and Tis breast cancer of dense gland was 79. 17%（ 57/72） by DCE-MRI and 41. 67%（ 30/72） by DR mammography,the difference was statistically significant（ P〈0. 05）; Accuracy ratio was 72. 22%（ 52/72） by DCE-MRI examination and 37. 50%（ 27/72） by DR mammography examination,the difference was statistically significant（ P〈0. 05）.Conclusion： DCE-MRI can significantlly improve the detection ratio and accuracy ratio for T1 and Tis breast cancer in dense breast.