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64排螺旋CT评价右心室功能的准确性研究 被引量：1

Assessment of Right Ventricular Function by 64-slice Multi-detector CT
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摘要 目的评价64排螺旋CT(64-MDCT)能否作为一种新的方法准确测量右室功能,并以磁共振(MRI)作参照标准衡量其准确性。方法32例志愿者被连续纳入行64-MDCT和MRI扫描,获得右室心功能参数包括舒张末期容积(RV-EDV),收缩末期容积(RV-ESV),每搏量(RV-SV)和射血分数(RV-EF)。以MRI结果作参照标准,比较评价两种检查方法的一致性和准确性。结果两种方法的各心室容积参数和射血分数的差异无统计学意义(P为0.29～0.66)。一致性检验和相关分析表明RV-EDV〔(0.6±4.9)mL;r=0.98〕、RV-ESV〔(-0.6±3.4)mL;r=0.97〕,RV-SV〔(0.9±5.6)mL;r=0.93〕和RV-EF〔(1.0±3.9)mL;r=0.88〕在MRI和64-MDCT之间的一致性和相关性好。结论64-MDCT可作为一种新的手段准确评价右室功能。 Objective To evaluate the accuracy of using 64-MDCT to assess right ventricular function. Methods The ventricular function of 32 adult volunteers were assessed by ECG-gated 64-MDCT and MRI, which included right ventricular end-diastolic and end-systolic volume, stroke volume, and ejection fraction. Consistency between the two modalities was tested with Bland and Altman analysis and Pearson＇s correlation. Results No significant differences were found in calculated RV volumes and EF between the two modalities （P=0.29 to 0.66）. Consistency was achieved in RV-EDV （（0.6±4.9） mL; r=0. 983, RV-ESV （（-0. 6±3. 4） mL; r=0. 973, RV- SV（（0.9±5.6） mL;r=0. 933, and RV-EFC（1.0±3.9） mL; r=0. 883. Conclusion ECG-gated 64-MDCT can accurately assess RV function. [Key words] Right ventricular function 64-MDCT MRI
作者 李真林 袁元 阳礼 邓莉萍
机构地区 四川大学华西医院放射科
出处 《四川大学学报（医学版）》 CAS CSCD 北大核心 2010年第1期170-173,181,共5页 Journal of Sichuan University(Medical Sciences)
关键词 右室功能 64-MDCT 磁共振成像 Right ventricular function 64-MDCT MRI
分类号 R816.2 [医药卫生—放射医学]
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参考文献14

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同被引文献18

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四川大学学报（医学版）
2010年 第1期

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