乳腺肿瘤MR检查技术的应用探讨

Comparison of breast magnetic resonance sequences for improving image quality

目的探讨不同成像序列在乳腺肿瘤MR检查中的应用价值。方法对75例乳腺肿瘤MR受检者进行T2WI、DWI、T1WI动态增强扫描和T1WI延迟扫描,分析各种成像技术的应用对图像质量的影响。结果本组75例患者的扫描图像中达到优良的百分比T2WI为93.33%,DWI为18.66%,T1WI动态增强扫描为72.00%,T1WI延迟扫描为97.33%。结论减少运动伪影,序列优化缩短检查时间,合理应用脂肪抑制技术,对DWI序列b值的正确选择,以及充分应用并行采集技术等均有助于提高乳腺肿瘤MR检查的图像质量。

Objective To compare breast magnetic resonance sequences for their ability to generate high-quality images. Methods A total of 75 subjects were analyzed by breast magnetic resonance imaging using T2WI, DWI, dynamic contrast-enhanced and delayed T1WI sequences.The image quality produced by each approach was assessed. Results High-quality images were obtained for 93.33% of patients using T2WI, 18.66% using DWI, 72.00% using dynamic contrast-enhanced T1WI and 97.33% using delayed T1WI. Conclu- sions In order to improve the quality of breast magnetic resonance images ,we recommend reducing motion artifacts, optimizing the imaging sequence to reduce examination time, properly applying fat suppression techniques, ensuring that the b value for the DWI se- quence is chosen correctly, and exploiting the full potential of the integrated parallel acquisition technique （iPAT）.