SENSE技术在下肢静脉成像中的应用

Evaluation of SENSE MRV technique in lower limb veins

目的:探讨磁共振SENSE技术在下肢静脉成像中的应用价值。方法:不用造影剂,采用非SENSE线圈及技术,SENSE线圈及技术对34例临床怀疑下肢静脉病变的患者同时进行磁共振静脉成像并分析其应用价值。结果:所有病例均较清晰显示下肢静脉,应用SENSE技术的下肢静脉图像与非SENSE技术的图像质量相同,扫描时间减少一半。在扫描范围及时间不变时提高分辨率的参数,可明显提高图像质量。结论:SENSE技术是一种可以大大减少扫描时间,不影响空间分辨率的新方法,在磁共振快速成像及临床中的应用前景广阔。

Objective： To explore the application value of the technique of SENSE MRV in lower limb veins. Methods： Without SENSE technique and with SENSE technique were performed in 34 patients suspected with venous diseases of the lower limb. Contrast enhancement were not used in all examinations. Results： All cases acquired excellent image and anatomic changes in the lower limb veins. The scan time with SENSE technique of reduction factor 2.0 in lower limb veins imaging decreased about 50% of the counterparts without SENSE technique and the contrast resolution on SENSE imaging almost kept the same as that on conventional sequence. Changing the parameters which enhance resolution as the same as scanning scope and time may obviously improve the picture quality. Conclusion： It offers a new approach to reduce the scan time at preserved spectral resolution, SENSE technique shows a widen promising in fast MRI and clinical application.