血流向量成像技术分析高血压合并主动脉瓣关闭不全的能量损耗

发布时间：2017-12-28 11:43

本文关键词：血流向量成像技术分析高血压合并主动脉瓣关闭不全的能量损耗　出处：《中国医学影像技术》2016年02期 　论文类型：期刊论文

【摘要】：目的采用血流向量成像技术(VFM)探讨高血压(HP)和主动脉瓣关闭不全(AR)患者的左心室舒张末期平均能量损耗(AELEDLV)对左心房前后径及室间隔厚度的影响。方法将患者分为正常组、AR组、HP组及HP+AR组,每组15例。采用VFM分析各组心电图R波顶点四腔心的AELEDLV,测量舒张期末室间隔厚度和左心房前后径。结果 HP+AR组AELEDLV显著高于HP组、AR组及正常组(P均0.01),HP组及AR组高于正常组(P0.01);AELEDLV、左心房前后径及室间隔厚度均为HP+AR组HP组AR组正常组,AELEDLV与左心房前后径呈正相关(r=0.98,P=0.025)。结论 AR及HP均可增加AELEDLV,HP合并AR可进一步增加AELEDLV,AELEDLV的增加可能是导致左心房增大及室间隔增厚的重要因素之一。
[Abstract]:Objective to investigate the effects of left ventricular end diastolic mean energy loss (AELEDLV) on left atrial anteroposterior diameter and interventricular septal thickness in patients with hypertension (HP) and aortic insufficiency (AR) by flow vector imaging (VFM). Methods the patients were divided into the normal group, the AR group, the HP group and the HP+AR group, with 15 cases in each group. The AELEDLV of four cavities at the vertex of R wave at the vertex of electrocardiogram was analyzed by VFM. The thickness of diastolic ventricular septum and the diameter of left atrium were measured. Results AELEDLV in HP+AR group was significantly higher than that in HP group, AR group and normal group (P 0.01), HP group and AR group were higher than those of normal group (P0.01), AELEDLV, left atrial anteroposterior diameter and interventricular septum thickness were all normal group of HP+AR group, HP group and normal group, and there was a positive correlation between left atrium and anterior and posterior diameters of left atrium. Conclusion AR and HP can increase AELEDLV. HP plus AR can further increase AELEDLV and AELEDLV may be an important factor leading to increased left atrium and thickening of interventricular septum.
【作者单位】：电子科技大学附属医院四川省人民医院心血管超声及心功能科;
【分类号】：R544.1;R542.52;R540.45
【正文快照】： 高血压(hypertension,HP)是常见疾病之一,可导致心、脑、肾等靶器官损害,也是引起心脑血管疾病致残、致死的重要因素之一。研究[1]显示,HP常合并主动脉瓣关闭不全(aortic valve regurgitation,AR),长期HP可导致左心室壁增厚及左心房(the left atri-um,LA)增大,其机制与左心室

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