乳腺评估容积成像技术在双侧乳腺磁共振成像中的价值

目的:通过对传统乳腺动态扫描和采用VIBRANT技术乳腺动态增强扫描的比较研究,探讨VIBRANT技术的临床应用价值.方法:对临床或钼靶检查怀疑有肿块病变的38例患者进行传统乳腺动态扫描序列和采用VIBRANT技术的乳腺动态增强扫描序列的对比研究,比较它们的图像质量、动态增强及时间-信号强度曲线对MR诊断结果的影响.结果:传统乳腺动态扫描序列和采用VIBRANT技术的乳腺动态增强扫描序列的图像质量没有明显的差别,显示病变的数目、大小无统计学差异.但VIBRANT技术乳腺动态增强扫描序列扫描时间明显减少,可同时显示双侧乳腺矢状位的多中心病灶,同时可做双侧对比检查,为临床诊断提供好的对比参考.由于其视野的限制,对较大乳房和特殊部位病灶的应用存在一定的限度.结论:VIBRANT技术的乳腺动态增强扫描比传统乳腺动态扫描序列技术更有临床应用价值.

Clinical Value of VIBRANT Technique in MR Mammography of Bilateral Breasts

Objective:To assess the clinical value of MR mammography with the application of VIBRANT (volume imaging for breast assessment,VIBRANT) technique through the comparison with the MR conventional one in the detection of breast lesions.Methods:Comventional MR dynamic contrast enhancement mammography with and without VIBRANT imaging technique were undergone in thirty eight clinically or radiographically (examined with molybdenum target radiography) suspected of mammary mass patients.The image quality,the dynamic enhancement and the T/SI curves of the mammograms were individually and correlatively compared to study the influence of VIBRANT technique on the diagnostic results of the cases.Results:There were no significant differences between the image quality of the mammograms of the MR dynamic contrast enhancement mammography with and without VIBRANT imaging technique,the number and size as well as the conspicuity of contours of the lesions were identical in all the images with the two techniques.However,the scanning time was found reduced obviously and the multi-centric lesions in both breasts could be simultaneously demonstrated,correlatively examined and compared with each other in the mammograms with VIBRANT technique.All these findings were helpful and important for clinical references and diagnosis establishment.There were difficulties for the examination in some special cases with big breasts and lesions in unique sites because of the limit of FOV.Conclusion:Dynamic contrast enhancing mammography with VIBRANT technique was clinically shown more valuable than the conventional one (with only the dynamic contrast enhancement) in the evaluation of breast masses.