摘要
目的探讨MR多回波回复梯度回波(MERGE)序列在骶髂关节(SIJ)软骨成像中的应用价值。方法对30名健康志愿者SIJ软骨行MERGE、三维扰相梯度回波(3D-FSPGR)、质子密度加权成像脂肪抑制(PDWI-FS)、T2WI脂肪抑制(T2WI-FS)和T1WI脂肪抑制(T1WI-FS)序列成像,比较MERGE序列与其他各序列图像显示SIJ软骨的图像评分和SNR、CNR。结果 MERGE序列显示SIJ软骨的图像评分、CNR和SNR与3D-FSPGR序列比较差异均无统计学意义(P均>0.05),与PDWI-FS、T2WI-FS、T1WI-FS序列比较差异有统计学意义(P均<0.001)。结论 MERGE序列显示SIJ软骨的图像质量较高。
Objective To explore the application value of multiple echo recalled gradient echo （MERGE） sequence in sacroiliac joint （SIJ） cartilage imaging. Methods A total of 30 healthy volunteers were collected randomly. The MERGE, three-dimensional spoiled gradient recalled echo （3D-ESPGR）, proton density weighted imaging-fat suppression （PDWI- FS）, T2Wl-fat suppression （T2WI-FS） and T1WI-fat suppression （T1WI-FS） sequences were performed respectively for sacroiliac joint cartilage MR scanning. The imaging scores, cartilage SNR and CNR were evaluated. The differences were compared between MERGE and other sequences. Results The differences of imaging scores, CNR and SNR had no statistically significance between MERGE sequence and 3D-FSPGR sequence （all P〉0. 05）. However, the imaging scores, CNR and SNR of MERGE sequence were higher than those of PDWI-FS, T2WI-FS and T1W1 sequence, and the differences had statistically significance （all P〈0. 001）. Conclusion MERGE sequence has high imaging quality in showing SIJ cartilage.
出处
《中国医学影像技术》
CSCD
北大核心
2016年第9期1436-1439,共4页
Chinese Journal of Medical Imaging Technology
基金
国家自然科学基金(81271561)
广东省自然科学基金(2015A030313173)
珠海市科技计划医疗卫生项目(2015A1023)
关键词
磁共振成像
骶髂关节
软骨
健康志愿者
Magnetic resonance imaging
Sacroiliac joint
Cartilage
Healthy volunteers
