320排CT低剂量冠状动脉成像评价左心功能
目的 探讨320排CTCA低剂量成像评价左心功能的价值.方法 回顾性分析临床怀疑冠状动脉粥样硬化性心脏病(冠心病)行320排CTCA左心功能检查者100例,常规组与低剂量组各50例.其中男57例,女43例,平均59.30±12.29岁,分别记录两组图像质量、辐射剂量(DLP)、有效剂量(ED).回顾性收集在一周内分别行320排CTCA和2D-TTE检查者94例,其中男46例,女48例,平均61.14±12.71岁,两种方法分别测量左心室舒张末期容积(EDV)、收缩末期容积(ESV)、射血分数(EF)、每搏输出量(SV)和每分输出量(CO)值.对正态分布的变量采用独立样本t检验或配对样本t检验,...
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Published in | 影像诊断与介入放射学 Vol. 28; no. 6; pp. 417 - 421 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Chinese |
Published |
广州医科大学附属第六医院/清远市人民医院影像科, 广东清远,511518
2019
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Abstract | 目的 探讨320排CTCA低剂量成像评价左心功能的价值.方法 回顾性分析临床怀疑冠状动脉粥样硬化性心脏病(冠心病)行320排CTCA左心功能检查者100例,常规组与低剂量组各50例.其中男57例,女43例,平均59.30±12.29岁,分别记录两组图像质量、辐射剂量(DLP)、有效剂量(ED).回顾性收集在一周内分别行320排CTCA和2D-TTE检查者94例,其中男46例,女48例,平均61.14±12.71岁,两种方法分别测量左心室舒张末期容积(EDV)、收缩末期容积(ESV)、射血分数(EF)、每搏输出量(SV)和每分输出量(CO)值.对正态分布的变量采用独立样本t检验或配对样本t检验,对非正态分布的变量采用Mann-Whitney U检验或Wilcoxon配对样本符号秩检验,并进行Pearson相关性分析.P<0.05认为有统计学差异.结果 低剂量组在年龄、体质量指数(BMI)、图像质量方面与常规组比较无统计学差异,ED较常规组明显降低约36.09%(P=0.000),平均ED为4.94±2.24 mSv.CTCA测量的EDV、EF、SV值略高于2D-TTE.EDV、ESV、EF、SV与2D-TTE测量值呈中等程度显著性相关(r=0.420、0.732、0.581、0.516).结论 320排CTCA低剂量成像评价左心功能与2D-TTE一致性较好,值得在临床中推广应用. |
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AbstractList | 目的 探讨320排CTCA低剂量成像评价左心功能的价值.方法 回顾性分析临床怀疑冠状动脉粥样硬化性心脏病(冠心病)行320排CTCA左心功能检查者100例,常规组与低剂量组各50例.其中男57例,女43例,平均59.30±12.29岁,分别记录两组图像质量、辐射剂量(DLP)、有效剂量(ED).回顾性收集在一周内分别行320排CTCA和2D-TTE检查者94例,其中男46例,女48例,平均61.14±12.71岁,两种方法分别测量左心室舒张末期容积(EDV)、收缩末期容积(ESV)、射血分数(EF)、每搏输出量(SV)和每分输出量(CO)值.对正态分布的变量采用独立样本t检验或配对样本t检验,对非正态分布的变量采用Mann-Whitney U检验或Wilcoxon配对样本符号秩检验,并进行Pearson相关性分析.P<0.05认为有统计学差异.结果 低剂量组在年龄、体质量指数(BMI)、图像质量方面与常规组比较无统计学差异,ED较常规组明显降低约36.09%(P=0.000),平均ED为4.94±2.24 mSv.CTCA测量的EDV、EF、SV值略高于2D-TTE.EDV、ESV、EF、SV与2D-TTE测量值呈中等程度显著性相关(r=0.420、0.732、0.581、0.516).结论 320排CTCA低剂量成像评价左心功能与2D-TTE一致性较好,值得在临床中推广应用. |
Author | 曾庆千 王勤 刘红艳 杨栋梁 彭明明 |
AuthorAffiliation | 广州医科大学附属第六医院/清远市人民医院影像科, 广东清远,511518 |
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Author_FL | PENG Ming-ming LIU Hong-yan ZENG Qing-qian WANG Qin YANG Dong-liang |
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Keywords | 体层摄影术,X线计算机 左心功能 经胸二维超声心动图 低剂量 |
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Title | 320排CT低剂量冠状动脉成像评价左心功能 |
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