一般心电图和超声心电图有什么区别?
就是ECG & transthorocic echocardiogram 的区别。
推荐回答(5个)
一、功能反映不同
1、一般心电图:心脏主要反映心脏激动的的电活动,对于各种心律失常的诊断具有无可替代的作用,尤其适应于心悸、晕厥的病人。附:心律失常即为心脏电活动激动起源或者传导异常。
2、超声心电图:评估心功能:包括心室收缩功能、心室舒张功能、心脏整体功能等等,常见的指标为:心脏射血分数(EF值)。
二、检测范围不同
1、一般心电图:对急性心肌缺血和急性心肌梗死意义重大,一旦心肌发生缺血或梗死,往往会引起心肌电活动改变,从而被心电图记录。诊断优点为:快速、简便、可靠实用。
2、超声心电图:协助诊断冠心病及冠心病并发症:要点为可探及心脏阶段性室壁运动异常,发现室壁瘤、心包积液、心脏破裂等心梗后并发症。
三、反馈不同
1、一般心电图:任何可以引起心肌电活动改变的疾病都会引起心电图的改变,心电图还可以协助诊断心房心室肥大、电解质紊乱、药物、心肌病、心肌炎等等疾病,甚至对肺部疾病如肺栓塞、肺心病也有一定诊断价值。
2、超声心电图:直接反应心肌结构功能,诊断优势较心电图明显。协助诊断心脏瓣膜病、心脏占位性病变(肿瘤、血栓)、先天性心脏病、心包疾病、主动脉疾病(如主动脉夹层)、肺动脉疾病(如肺动脉高压)等等一些与心脏及心脏大血管相关的疾病,这些都是心电图不可取代的。
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扩展资料:
超声心动图它有M型和切面超声心动图两种,可用于以下诊断:
(1)根据心脏各瓣膜回声情况诊断瓣膜疾病;
(2)根据心内异常回声诊断心脏肿瘤、赘生物、血栓形成及心包积液;
(3)诊断先天性心脏病;
(4)对冠心病、心肌病等提供诊断依据;
(5)诊断肥厚性心肌病;
(6)测量心脏各腔室大小,计算心搏量判断心功能;
(7)观察人工瓣功能状态;
(8)解释和鉴别异常心音和心杂音。
一般心电图是在四肢和胸前连接导联线,记录心跳周期中额面和矢状面的不同部位的电位变化曲线图形,分析这些图形,可了解心脏跳动节律、频率、心电传导、心肌供血是否正常,有无电解质紊乱、有无心室肥厚等。
没有超声心电图,应为超声心动图,是用多普勒彩色超声波检查仪来观察心脏形态、心脏瓣膜有无病变、测量心脏腔室大小、血流速度和方向,分析这些资料,可了解心脏有无先天性心脏病、有无风湿性心脏病,还可根据心脏收缩和舒张的心室容积变化,了解心脏功能情况。
这两项检查各有各的用途,一般体检作心电图就行了,如果怀疑先天性心脏病、风湿性心瓣膜病才需要作超声心动图。
补充一句:较早期的超声心动图用的是带多普勒的黑白M超,现在条件较差的医院还仍然在使用,它的超声图像是一条线加上时间轴,没有直观的图形。目前一般条件较好的医院心脏超声检查用的是彩色B超,它的图形是一个切面,可以直观显示心脏切面结构。
心电图是简单的测量心脏问题(如心律不齐,过快,过慢)超声波有立体效果,可以更深度的了解心脏情况,再就是导管介入了。
一般心电图就是胸前、手脚接电极坐的普通心电图,就是看心脏搏动过程中的电位变化的。
超声心电图,应该说的是超声心动图,是用超声观察心脏结构、运动过程的检查。
1、这是两种不同的检查;
2、一般心电图是心电位信息;
3、超声心电图是超声波信息。
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