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心脏磁共振运动伪影校正相位敏感反转恢复序列在心律失常患者中的应用

ISSN号：1003-3289
期刊名称：《中国医学影像技术》
时间：0
分类：R445.2[医药卫生—影像医学与核医学;医药卫生—诊断学;医药卫生—临床医学] R541.7[医药卫生—心血管疾病;医药卫生—临床医学;医药卫生—内科学]
作者机构：[1]首都医科大学附属北京安贞医院医学影像科,北京100029, [2]西门子医疗东北亚地区科研合作团队,北京100102
相关基金：国家自然科学基金（81101173）; 北京市卫生系统高层次卫生技术人才培养计划（2013-3-005）

作者：王占宏[1], 马晓海[1], 赵蕾[1], 李志伟[1], 张天静, 安靖, 晏子旭[1], 赵轶轲[1], 范占明[1]

关键词：心律失常, 磁共振成像, 延迟强化成像, 运动伪影校正相位敏感反转恢复序列, Arrhythmia, Magnetic resonance imaging, Delay enhancement, Motion-corrected phase-sensitive inversion recovery imaging

中文摘要：

目的探讨运动校准相位敏感反转恢复序列（moco PSIR）成像在心律失常患者中应用的价值。方法收集拟行心律失常介入消融术的60例患者,均行心脏MR检查,序列包括心脏电影成像、LGE成像、moco PSIR成像。比较LGE与moco PSIR成像的图像质量及对延迟强化病灶的检出情况。结果对60例患者共采集左心室短轴LGE图像、moco PSIR图像各180幅。LGE与moco PSIR图像比较,二者图像质量差异有统计学意义（χ2=14.88,P〈0.01）。LGE图像中,延迟强化阳性病灶见于12例患者共15幅图像。moco PSIR图像中,总计17例患者共23幅左心室短轴图像可见延迟强化阳性病灶。结论对心律失常患者进行心脏MR检查时,采用moco PSIR序列进行延迟强化成像,图像质量好,有助于延迟强化病灶的检出。

英文摘要：

Objective To explore the value of motion-corrected phase-sensitive inversion recovery（moco PSIR）imaging in arrhythmia patients.Methods Totally 60 arrhythmia patients who were planned to receive the interventional ablation therapy were enrolled.All the patients received cardiac magnetic resonance（CMR）examinations.The sequences including cine MR,conventional LGE imaging and moco PSIR imaging were performed.The differences of image quality and ability to detect the delayed enhancement lesions were compared between conventional LGE and moco PSIR.Results In 60 patients,180left ventricle short-axis conventional LGE images and 180 moco PSIR images were analyzed.There were significant differences of image qualities between the two techniques（χ^2=14.88,P〈0.01）.In the conventional LGE images,15 images of 12 patients revealed delayed enhancement lesions.In the moco PSIR images,there were 23 images of 17 patients showed delayed enhanced lesions.Conclusion The moco PSIR sequence can be used to improve the image quality and detection rate of delayed enhancement lesions in arrhythmia patients.