自20世纪80年代以来,心脏磁共振(cardiac magnetic resonance,CMR)全面应用于临床,并成为心脏疾病检查的重要方法,为疾病的诊疗提供了巨大的临床参考价值,并广泛用于先天性发育异常、血管性疾病、心肌病、良恶性肿瘤等的发现和诊断[1-3...自20世纪80年代以来,心脏磁共振(cardiac magnetic resonance,CMR)全面应用于临床,并成为心脏疾病检查的重要方法,为疾病的诊疗提供了巨大的临床参考价值,并广泛用于先天性发育异常、血管性疾病、心肌病、良恶性肿瘤等的发现和诊断[1-3]。与其他成像技术比较,MRI检查具有无创、无辐射损伤、高软组织分辨率及多角度成像的特点,能够早期发现病变的大小和范围,且定性诊断准确率高[4]。2017-2018年国内CMR研究取得了新的进展,本文对其中重要的结果进行总结。展开更多
Objective To observe the clinical application value of total free-breathing cardiac MR(CMR)examination preliminarily.Methods Two patients who underwent CMR scanning under free-breathing state,including cine,motion cor...Objective To observe the clinical application value of total free-breathing cardiac MR(CMR)examination preliminarily.Methods Two patients who underwent CMR scanning under free-breathing state,including cine,motion correction T1 and T2 mapping,blood flow imaging,and late gadolinium enhancement scanning were retrospectively enrolled,and the qualities of the above images were evaluated and compared with that of conventional CMR images under breath-holding state.Results No significant difference of imaging quality was found between total free-breathing and conventional breath-holding CMR.The differences of left ventricular ejection fraction,cardiac output,left ventricular end-diastolic volume index and left ventricular mass measured based on CMR images under different breath conditions were limited.Conclusion Total free-breathing CMR was feasible in clinical practice,which could provide"one-stop"evaluation of cardiac structure,function and myocardial histological characteristics,hence having promising clinical prospects.展开更多
文摘自20世纪80年代以来,心脏磁共振(cardiac magnetic resonance,CMR)全面应用于临床,并成为心脏疾病检查的重要方法,为疾病的诊疗提供了巨大的临床参考价值,并广泛用于先天性发育异常、血管性疾病、心肌病、良恶性肿瘤等的发现和诊断[1-3]。与其他成像技术比较,MRI检查具有无创、无辐射损伤、高软组织分辨率及多角度成像的特点,能够早期发现病变的大小和范围,且定性诊断准确率高[4]。2017-2018年国内CMR研究取得了新的进展,本文对其中重要的结果进行总结。
文摘Objective To observe the clinical application value of total free-breathing cardiac MR(CMR)examination preliminarily.Methods Two patients who underwent CMR scanning under free-breathing state,including cine,motion correction T1 and T2 mapping,blood flow imaging,and late gadolinium enhancement scanning were retrospectively enrolled,and the qualities of the above images were evaluated and compared with that of conventional CMR images under breath-holding state.Results No significant difference of imaging quality was found between total free-breathing and conventional breath-holding CMR.The differences of left ventricular ejection fraction,cardiac output,left ventricular end-diastolic volume index and left ventricular mass measured based on CMR images under different breath conditions were limited.Conclusion Total free-breathing CMR was feasible in clinical practice,which could provide"one-stop"evaluation of cardiac structure,function and myocardial histological characteristics,hence having promising clinical prospects.
