【摘要】 目的:评价屏气三维快速平衡稳态进动序列在冠状动脉磁共振成像的临床应用价值。材料和方法:12例受检者,采用外周门控屏气三维快速平衡稳态进动序列(3DFIESTA),呼气末屏气扫描。扫描获得图像按照0~Ⅳ级评分标准评价图像质量,评价冠状动脉的显示范围以美国心脏协会(AHA)推荐的解剖分段标准为参照。结果:图像质量Ⅱ级以上占98%。RCA近段和中段(AHA18、19段)、LCX近段(AHA10段)、LM全长(AHA1、2段)及LAD近段和中段(AHA3、5、7段)的显示率为100%,RCA远段(AHA21段)、LCX远段(AHA14段)及LAD远段(AHA9段)的显示率分别为83.3%、75%、91.6%。结论:屏气三维快速平衡稳态进动序列在冠状动脉磁共振成像中具有一定的临床应用价值。更多还原

【Abstract】 To evaluate the clinical application value of breath hold3-dimensional fast imaging employ-ing steady state(3D FIESTA)sequence for coronary arteries magnetic resonance angiography.Materi-als and Methods:Peripheral gated3D FIESTA sequence was used to12subjects with breath-hold at the end of expiration.The acquired coronary arteries were graded with a0-IV grading system according to image quality.The length of the vessels was evaluated with reference to American Heart Association(AHA)recommended segmentation system.Results:Grade II image quality occupies98%.The demon-stration rate for the proximal and middle RCA(AHA-18,19),LM(AHA-1,2)and the proximal and middle LAD(AHA-3,5,7)and proximal LCX(AHA-10)reached100%.The rate for the segments(AHA-9,14,21)was reached83.3%,75%and91.6%,respectively.Conclusion:3D FIESTA sequence possesses the preliminary clinical application value for the CMRA.更多还原