比较3.0T磁共振FSE-IR、FSE-XL和3D-FSPGR扫描序列在乳腺成像中的应用价值

目的：探讨不同序列在乳腺MR成像中的应用价值。方法：对10名健康志愿者和42名乳腺疾病患者分别采用FSE-IR、FSE-XL T1WI、FSE-XL T2WI和3D-FSPGR序列进行乳腺MR成像,从图像信噪比、对比噪声比、病灶显示数目等方面对其应用价值进行评价。结果：抑脂条件下,FSE-IR和FSE-XL T2WI图像信噪比和对比噪声比明显高于FSE-XL T1WI,差别均有显著性意义（P〈0.05）;FSE-IR序列图像对比噪声比高于FSE-XL T2WI,差别有显著性意义（P〈0.01）,两者之间的信噪比差别无显著性意义（P〉0.05）。42例患者采用上述序列联合检出45处病变,其中恶性3例,共5处病变;良性34例,共40处病变。不同序列对病变的检出率分别为FSE-IR93.33%（42/45）、FSE-XL T2WI93.33%（42/45）、FSE-XL T1WI42.22%（19/45）、3D-FSPGR T1WI动态增强为82.22%（37/45）。结论：3.0TMR乳腺成像,联合使用FSE-IR、非抑脂FSE-X LT1WI序列横轴面、抑脂FSE-XL T2WI矢状面平扫和3D-FSPGR动态增强,可在较短的扫描时间内获得优质的扫描图像,提高对病变的检出率。

Comparison of the Applied Value of the Sequences in Breast Magnetic Resonance Imaging at 3.0T System

Objective:To assess the value of different sequences in breast magnetic resonance imaging.Methods:Ten healthy volunteers were examined with FSE-IR,fat suppressed FSE-XL T2WI,and FSE-XL T1WI with or without fat suppression respectively in axial view,and the SNR and CNR of the images acquired by different sequences were compared.Forty-two patients received FSE-IR and non fat suppressed FSE-XL T1WI in axial view,FSE-XL T2WI with fat suppression in sagittal view and 3D-FSPGR for dynamic contrast-enhancement in ...