Cardiovascular magnetic resonance (CMR) has become a reference standard for the measure-ment of cardiac volumes, function, and mass. This study aims to reconstruct three dimen-sional modeling of the left ventricle (LV...Cardiovascular magnetic resonance (CMR) has become a reference standard for the measure-ment of cardiac volumes, function, and mass. This study aims to reconstruct three dimen-sional modeling of the left ventricle (LV) in pa-tients with heart failure (HF) using CMRtools and thereby derive the LV functional indices. CMR images were acquired in 41 subjects (6 females) with heart failure (HF) and 12 normal controls (4 females). Five comparisons were made (i) nor-mal and dilated heart failure subjects, (ii) male and female normal heart, (iii) male and female dilated heart, (iv) male normal and dilated heart failure and (v) female normal and dilated heart failure. In HF, a significant higher values of EDV (320 刡 79 vs. 126 刡 22 ml, P<0.0001), ESV (255 刡 68 vs. 54 刡 12 ml, P<0.00001) and lower values of EF (20 刡 7 vs. 58 刡 5 %) were found compared that of normal control. There were significant difference on LV EDV and ESV between sex in both normal and HF subjects.展开更多
Fifty-six patients with chest pain underwent selective coronaryangiography,radionuclide ventriculography (RNV) and frequency domaincardiography (FCG) to evaluate left ventricular function in coronary artery dis-ease (...Fifty-six patients with chest pain underwent selective coronaryangiography,radionuclide ventriculography (RNV) and frequency domaincardiography (FCG) to evaluate left ventricular function in coronary artery dis-ease (CAD).The sensitivity,specificity and accuracy of FCG were 87.5%,77.8%and 82.9%,respectively,which were slightly less than those of RNV (92.5%,88.9% and 90.8%,respectively).The changes of FCG scores were negatively corre-lated with changes of LVEF (r=-0.586,P【0.01),and TS (r=-0.679,P【0.01).These results indicate that FCG may be useful for the evaluation of leftventricular function in patients with CAD.展开更多
目的探讨基于无创左室压力-应变环(LV-PSL)技术评估急性心肌梗死(AMI)患者经皮冠状动脉介入(PCI)术前、后的心肌做功情况及左室重构的临床价值。方法选择70例AMI患者(冠心病组)及同期体检的50例健康成人(对照组)。比较对照组和冠心病组...目的探讨基于无创左室压力-应变环(LV-PSL)技术评估急性心肌梗死(AMI)患者经皮冠状动脉介入(PCI)术前、后的心肌做功情况及左室重构的临床价值。方法选择70例AMI患者(冠心病组)及同期体检的50例健康成人(对照组)。比较对照组和冠心病组术前、术后7 d检查常规超声心动图指标、左室整体纵向应变(GLS)和左室心肌做功指标[整体做功指数(GWI)、整体做功效率(GWE)、整体有用功(GCW)、整体无用功(GWW)]的差异。冠心病组患者进一步根据冠脉造影结果分为冠心病单支组34例和冠心病多支组36例,对比两组上述指标的差异。分析左室心肌做功指标与GLS、常规超声心动图指标的相关性。结果冠心病组术前、术后7d左室收缩末期容积(LVESV)、左室舒张末期容积(LVEDV)、GWW均高于对照组,左室射血分数(LVEF)、GWI、GWE、GCW、GLS均低于对照组,差异均有统计学意义(P<0.05)。冠心病组术后7 d LVESV、LVEDV、GWW均低于术前,LVEF、GWI、GWE、GCW、GLS均高于术前,差异均有统计学意义(P<0.05)。冠心病多支组术前及术后7 d LVESV、LVEDV、GWW均高于冠心病单支组,LVEF、GWI、GWE、GCW、GLS均低于冠心病单支组,差异均有统计学意义(P<0.05)。相关性分析显示,GWW与GLS、LVEF均呈负相关,GWE、GCW、GWI与GLS、LVEF均呈正相关(P<0.001)。结论LV-PSL技术在评估AMI患者PCI术前、后左心功能及左室重构方面具有较好的应用价值,为临床急性心肌梗死患者经皮冠状动脉介入术术后提供了一种无创、有效的评估新方法。展开更多
文摘Cardiovascular magnetic resonance (CMR) has become a reference standard for the measure-ment of cardiac volumes, function, and mass. This study aims to reconstruct three dimen-sional modeling of the left ventricle (LV) in pa-tients with heart failure (HF) using CMRtools and thereby derive the LV functional indices. CMR images were acquired in 41 subjects (6 females) with heart failure (HF) and 12 normal controls (4 females). Five comparisons were made (i) nor-mal and dilated heart failure subjects, (ii) male and female normal heart, (iii) male and female dilated heart, (iv) male normal and dilated heart failure and (v) female normal and dilated heart failure. In HF, a significant higher values of EDV (320 刡 79 vs. 126 刡 22 ml, P&amp;amp;amp;amp;lt;0.0001), ESV (255 刡 68 vs. 54 刡 12 ml, P&amp;amp;amp;amp;lt;0.00001) and lower values of EF (20 刡 7 vs. 58 刡 5 %) were found compared that of normal control. There were significant difference on LV EDV and ESV between sex in both normal and HF subjects.
文摘Fifty-six patients with chest pain underwent selective coronaryangiography,radionuclide ventriculography (RNV) and frequency domaincardiography (FCG) to evaluate left ventricular function in coronary artery dis-ease (CAD).The sensitivity,specificity and accuracy of FCG were 87.5%,77.8%and 82.9%,respectively,which were slightly less than those of RNV (92.5%,88.9% and 90.8%,respectively).The changes of FCG scores were negatively corre-lated with changes of LVEF (r=-0.586,P【0.01),and TS (r=-0.679,P【0.01).These results indicate that FCG may be useful for the evaluation of leftventricular function in patients with CAD.
文摘目的探讨基于无创左室压力-应变环(LV-PSL)技术评估急性心肌梗死(AMI)患者经皮冠状动脉介入(PCI)术前、后的心肌做功情况及左室重构的临床价值。方法选择70例AMI患者(冠心病组)及同期体检的50例健康成人(对照组)。比较对照组和冠心病组术前、术后7 d检查常规超声心动图指标、左室整体纵向应变(GLS)和左室心肌做功指标[整体做功指数(GWI)、整体做功效率(GWE)、整体有用功(GCW)、整体无用功(GWW)]的差异。冠心病组患者进一步根据冠脉造影结果分为冠心病单支组34例和冠心病多支组36例,对比两组上述指标的差异。分析左室心肌做功指标与GLS、常规超声心动图指标的相关性。结果冠心病组术前、术后7d左室收缩末期容积(LVESV)、左室舒张末期容积(LVEDV)、GWW均高于对照组,左室射血分数(LVEF)、GWI、GWE、GCW、GLS均低于对照组,差异均有统计学意义(P<0.05)。冠心病组术后7 d LVESV、LVEDV、GWW均低于术前,LVEF、GWI、GWE、GCW、GLS均高于术前,差异均有统计学意义(P<0.05)。冠心病多支组术前及术后7 d LVESV、LVEDV、GWW均高于冠心病单支组,LVEF、GWI、GWE、GCW、GLS均低于冠心病单支组,差异均有统计学意义(P<0.05)。相关性分析显示,GWW与GLS、LVEF均呈负相关,GWE、GCW、GWI与GLS、LVEF均呈正相关(P<0.001)。结论LV-PSL技术在评估AMI患者PCI术前、后左心功能及左室重构方面具有较好的应用价值,为临床急性心肌梗死患者经皮冠状动脉介入术术后提供了一种无创、有效的评估新方法。
