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Preliminary clinical application of total free-breathing cardiac MR examination 被引量:1
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作者 YANG Kai YIN Gang +4 位作者 AN Jing YANG Xinling LAN Tian ZHAO Shihua LU Minjie 《中国医学影像技术》 CSCD 北大核心 2024年第8期1183-1188,共6页
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
关键词 HEART magnetic resonance imaging respiratory motion motion correction
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DWI和DCE-MRI定量评价食管癌放化疗疗效的应用 被引量:12
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作者 谢铁明 邵国良 庞佩佩 《放射学实践》 北大核心 2017年第7期755-757,共3页
食管癌是我国消化系统常见恶性肿瘤,目前临床对食管癌疗效评估主要采用实体瘤疗效评价标准,由于治疗中和治疗后水肿的存在,常规影像学技术不能准确反映食管癌肿瘤实际变化情况,而功能成像则可以先于形态学反映肿瘤功能代谢的变化。近年... 食管癌是我国消化系统常见恶性肿瘤,目前临床对食管癌疗效评估主要采用实体瘤疗效评价标准,由于治疗中和治疗后水肿的存在,常规影像学技术不能准确反映食管癌肿瘤实际变化情况,而功能成像则可以先于形态学反映肿瘤功能代谢的变化。近年来磁共振扩散加权成像(DWI)、磁共振动态对比增强(DCE)等功能成像用来定量评估肿瘤组织内水分子扩散和血流灌注渗透微循环的应用日渐增多且在评估肿瘤疗效的应用上也有了一定的进展。该文将对上述功能影像方法在食管癌疗效评估方面的应用现状和进展予以综述。 展开更多
关键词 食管肿瘤 磁共振动成像 扩散加权成像 实体瘤疗效评价
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