Quantification of right ventricular(RV)volume and function remains a challenge because of RV complex geometry by conventional echocardiography.The purpose of this study was to assess RV global longitudinal function in...Quantification of right ventricular(RV)volume and function remains a challenge because of RV complex geometry by conventional echocardiography.The purpose of this study was to assess RV global longitudinal function in patients with tetralogy of Fallot(TOF)by 2-dimensional ultrasound speckle tracking imaging(STI).Thirty-eight patients with TOF were enrolled in this study and divided into child group(n=25)and adult group(n=13)according to age.Thirty-eight age-and sex-matched normal subjects were selected as c...展开更多
Objectives: Hypertension is a major risk factor for several cardiovascular diseases, including stroke, atherosclerosis and coronary heart disease. Remodeling of the aortic root may be expected to occur in hypertensive...Objectives: Hypertension is a major risk factor for several cardiovascular diseases, including stroke, atherosclerosis and coronary heart disease. Remodeling of the aortic root may be expected to occur in hypertensive subjects as a result of increased stress on the aortic wall due to the repeated hemodynamic overload. Two-dimensional speckle tracking echocardiography is a promising new imaging modality. The aim of this study is to assess aortic root mechanics in relation to left ventricular mechanics in hypertensive patients by speckle tracking echocardiography. Methods: The study included 50 individuals, 30 patients with hypertension compared with 20 age and sex matched healthy volunteers as control group. For both groups, conventional echo was done and speckle tracking echocardiography of the LV including longitudinal, circumferential, radial strain, LV rotation and the longitudinal strain of the ascending aorta and aortic distensibility were measured. Results: Aortic longitudinal strain of both anterior and posterior walls, andalso LV longitudinal peak systolic strain were lower significantly in patient group, and also in the same group, the apical rotation was higher than control;aortic longitudinal strain was negatively correlated with E/E, and LV global longitudinal strain was correlated positively with septal annular E wave peak velocity and with aortic distensibility. Conclusion: Hypertension significantly lowers ascending aortic longitudinal strain and the changes are correlated significantly with LV longitudinal systolic function and with echo parameters of elevated LV filling pressure.展开更多
目的探讨四维超声自动左心房定量技术(Automatic left atrial quantification with four-dimensional ultrasound,4DAutoVQ)、三维斑点追踪成像技术(Three-dimensional speckle tracking imaging technology,3D-STI)在老年慢性心力衰竭(...目的探讨四维超声自动左心房定量技术(Automatic left atrial quantification with four-dimensional ultrasound,4DAutoVQ)、三维斑点追踪成像技术(Three-dimensional speckle tracking imaging technology,3D-STI)在老年慢性心力衰竭(Chronic heart failure,CHF)患者心功能评价中的应用价值。方法选取2020年1月至2022年4月重庆大学附属沙坪坝医院重庆市沙坪坝区人民医院心血管内科收治的老年CHF患者167例设为研究组,另选取同期健康体检者167例设为对照组。采集两组受检者性别、年龄、体质量指数(Body mass index,BMI)、舒张压、收缩压、研究组美国纽约心脏病学会(New York Heart Association,NYHA)分级等资料,实施3D-STI、4DAutoVQ检查。比较研究组与对照组、研究组不同NYHA分级患者4DAutoVQ、3D-STI参数,分析4DAutoVQ、3D-STI参数与研究组NYHA分级的关联性。结果(1)研究组左心室整体径向收缩期峰值应变(Global radial systolic peak strain of left ventricle,GRS)、整体环向收缩期峰值应变(Global circumferential peak systolic strain,GCS)、整体纵向收缩期峰值应变(Overall longitudinal peak systolic strain,GLS)、左房排空容积(Left atrial emptying volume,LAEV)、左房射血分数(Left atrial ejection fraction,LAEF)、左房被动射血分数(Left atrial passive ejection fraction,LAPEF)、左房主动射血分数(Left atrial active ejection fraction,LAAEF)、左房储备期纵向应变(Longitudinal strain of left atrial reserve,LASr)、左房储备期圆周应变(Peripheral strain of left atrial reserve period,LASr-c)低于对照组,左房最大容积指数(Maximum left atrial volume index,LAVImax)、左房最小容积(Minimum left atrial volume,LAVmin)、左房收缩前容积(Left atrial pre systolic volume,LAVpreA)、左房最大容积(Maximum left atrial volume,LAVmax)、左房通道期纵向应变(Longitudinal strain of left atrial passage,LAScd)、左房收缩期纵向应变(Longitudinal strain of left atrium during systole,LASct)、左房收缩期圆周应变(Left atrial systolic circumferential strain,LASct-c)、左房通道期圆周应变(Circumferential strain of left atrial passage,LAScd-c)高于对照组,差异有统计学意义(P<0.05)。(2)研究组不同NYHA分级患者4DAutoVQ、3D-STI参数比较,差异有统计学意义(P<0.05),且随着NYHA分级增高,GRS、GCS、GLS、LAEV、LAEF、LAPEF、LAAEF、LASr、LASr-c呈降低趋势,LAVImax、LAVmin、LAVpreA、LAVmax、LAScd、LASct、LASct-c、LAScd-c呈增高趋势,差异有统计学意义(P<0.05)。(3)Spearman相关性分析结果显示,GRS、GCS、GLS、LAEV、LAEF、LAPEF、LAAEF、LASr、LASr-c与CHF病情分级存在负相关关系,LAVImax、LAVmin、LAVpreA、LAVmax、LAScd、LASct、LASct-c、LAScd-c与CHF病情分级存在显著正相关关系(P<0.05)。(4)Logistic分析结果显示,GRS、GCS、GLS、LAEV、LAEF、LAPEF、LAAEF、LASr、LASr-c、LAVImax、LAVmin、LAVpreA、LAVmax、LAScd、LASct、LASct-c、LAScd-c均是CHF重要影响因素(P<0.05)。结论通过4DAutoVQ、3D-STI检查可评估老年CHF患者心功能及结构状态,相关参数增高或降低程度与疾病病情关系密切,可评估疾病NYHA分级。展开更多
文摘Quantification of right ventricular(RV)volume and function remains a challenge because of RV complex geometry by conventional echocardiography.The purpose of this study was to assess RV global longitudinal function in patients with tetralogy of Fallot(TOF)by 2-dimensional ultrasound speckle tracking imaging(STI).Thirty-eight patients with TOF were enrolled in this study and divided into child group(n=25)and adult group(n=13)according to age.Thirty-eight age-and sex-matched normal subjects were selected as c...
文摘Objectives: Hypertension is a major risk factor for several cardiovascular diseases, including stroke, atherosclerosis and coronary heart disease. Remodeling of the aortic root may be expected to occur in hypertensive subjects as a result of increased stress on the aortic wall due to the repeated hemodynamic overload. Two-dimensional speckle tracking echocardiography is a promising new imaging modality. The aim of this study is to assess aortic root mechanics in relation to left ventricular mechanics in hypertensive patients by speckle tracking echocardiography. Methods: The study included 50 individuals, 30 patients with hypertension compared with 20 age and sex matched healthy volunteers as control group. For both groups, conventional echo was done and speckle tracking echocardiography of the LV including longitudinal, circumferential, radial strain, LV rotation and the longitudinal strain of the ascending aorta and aortic distensibility were measured. Results: Aortic longitudinal strain of both anterior and posterior walls, andalso LV longitudinal peak systolic strain were lower significantly in patient group, and also in the same group, the apical rotation was higher than control;aortic longitudinal strain was negatively correlated with E/E, and LV global longitudinal strain was correlated positively with septal annular E wave peak velocity and with aortic distensibility. Conclusion: Hypertension significantly lowers ascending aortic longitudinal strain and the changes are correlated significantly with LV longitudinal systolic function and with echo parameters of elevated LV filling pressure.
文摘目的探讨四维超声自动左心房定量技术(Automatic left atrial quantification with four-dimensional ultrasound,4DAutoVQ)、三维斑点追踪成像技术(Three-dimensional speckle tracking imaging technology,3D-STI)在老年慢性心力衰竭(Chronic heart failure,CHF)患者心功能评价中的应用价值。方法选取2020年1月至2022年4月重庆大学附属沙坪坝医院重庆市沙坪坝区人民医院心血管内科收治的老年CHF患者167例设为研究组,另选取同期健康体检者167例设为对照组。采集两组受检者性别、年龄、体质量指数(Body mass index,BMI)、舒张压、收缩压、研究组美国纽约心脏病学会(New York Heart Association,NYHA)分级等资料,实施3D-STI、4DAutoVQ检查。比较研究组与对照组、研究组不同NYHA分级患者4DAutoVQ、3D-STI参数,分析4DAutoVQ、3D-STI参数与研究组NYHA分级的关联性。结果(1)研究组左心室整体径向收缩期峰值应变(Global radial systolic peak strain of left ventricle,GRS)、整体环向收缩期峰值应变(Global circumferential peak systolic strain,GCS)、整体纵向收缩期峰值应变(Overall longitudinal peak systolic strain,GLS)、左房排空容积(Left atrial emptying volume,LAEV)、左房射血分数(Left atrial ejection fraction,LAEF)、左房被动射血分数(Left atrial passive ejection fraction,LAPEF)、左房主动射血分数(Left atrial active ejection fraction,LAAEF)、左房储备期纵向应变(Longitudinal strain of left atrial reserve,LASr)、左房储备期圆周应变(Peripheral strain of left atrial reserve period,LASr-c)低于对照组,左房最大容积指数(Maximum left atrial volume index,LAVImax)、左房最小容积(Minimum left atrial volume,LAVmin)、左房收缩前容积(Left atrial pre systolic volume,LAVpreA)、左房最大容积(Maximum left atrial volume,LAVmax)、左房通道期纵向应变(Longitudinal strain of left atrial passage,LAScd)、左房收缩期纵向应变(Longitudinal strain of left atrium during systole,LASct)、左房收缩期圆周应变(Left atrial systolic circumferential strain,LASct-c)、左房通道期圆周应变(Circumferential strain of left atrial passage,LAScd-c)高于对照组,差异有统计学意义(P<0.05)。(2)研究组不同NYHA分级患者4DAutoVQ、3D-STI参数比较,差异有统计学意义(P<0.05),且随着NYHA分级增高,GRS、GCS、GLS、LAEV、LAEF、LAPEF、LAAEF、LASr、LASr-c呈降低趋势,LAVImax、LAVmin、LAVpreA、LAVmax、LAScd、LASct、LASct-c、LAScd-c呈增高趋势,差异有统计学意义(P<0.05)。(3)Spearman相关性分析结果显示,GRS、GCS、GLS、LAEV、LAEF、LAPEF、LAAEF、LASr、LASr-c与CHF病情分级存在负相关关系,LAVImax、LAVmin、LAVpreA、LAVmax、LAScd、LASct、LASct-c、LAScd-c与CHF病情分级存在显著正相关关系(P<0.05)。(4)Logistic分析结果显示,GRS、GCS、GLS、LAEV、LAEF、LAPEF、LAAEF、LASr、LASr-c、LAVImax、LAVmin、LAVpreA、LAVmax、LAScd、LASct、LASct-c、LAScd-c均是CHF重要影响因素(P<0.05)。结论通过4DAutoVQ、3D-STI检查可评估老年CHF患者心功能及结构状态,相关参数增高或降低程度与疾病病情关系密切,可评估疾病NYHA分级。
