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首页 > 医学词汇大全 > electrical impedance tomography
electrical impedance tomography

重症

关键词重症 诊断方式 无损伤医学成像技术

词汇介绍

拓展阅读

解析

Electrical 英 [ɪˈlektrɪkl] 美 [ɪˈlektrɪkl]  

释义   adj. 有关电的;电气科学的

例句   What can you find in an electrical shop?

你能在一家电器商店里找到什么?

 

Impedance 英 [ɪmˈpiːdns] 美 [ɪmˈpiːdns]   

释义   n. [电] 阻抗

例句   For the radiation problem, we give the method of setting source and calculating input impedance.

对于辐射问题,给出了设置源与计算输入阻抗的方法。

 

Tomography 英 [təˈmɒɡrəfi] 美 [təˈmɑːɡrəfi]

释义   n. X线断层摄影术(等于laminography)

例句   After nine weeks of chemotherapy, my brother did a computerized tomography scan, and I was on his side.

做了化疗九周之后,我哥哥做了电脑断层扫描,出结果的时候,我就在他身边。


概述

电阻抗断层图像技术( electrical impedance tomography , EIT)是当今生物医学工程学重大研究课题之一。EIT通过配置于人体体表的电极阵,提取与人体生理、病理状态相关的组织或器官的电特性信息,不但反映了解剖学结构,更重要的是有望给出功能性图像结果。EIT不使用核素或射线,对人体无害,可以多次测量,重复使用,可以成为对患者进行长期、连续监护而不会给患者造成损伤或带来不适的医院监护设备。加之其成本低廉,不要求特殊的工作环境等,因而是一种理想的、具有诱人应用前景的无

Noninvasive measurement of stroke volume changes in critically ill patients by means of electrical impedance tomography复制标题

电阻抗成像无创测量危重患者每搏输出量的变化

发表时间:2019-10-17

影响因子:2.2

作者: Fabian Braun

期刊:J Clin Monit Comput

Fluid resuscitation is one of the vital components of hemodynamic management in critically ill patients. To ensure adequate tissue perfusion it should be targeted by optimizing cardiac stroke volume (SV) while limiting increases in filling pressures and development of edema. To achieve this goal, absolute values of SV and cardiac output are less important than monitoring trends in response to interventions such as a fluid challenge. Therefore, continuous monitoring of changes in SV during fluid resuscitation is desirable.Pulmonary artery catheterization (PAC) is an invasive method that provides continuous assessment of cardiac output in critically ill patients. However, due to the high risk for complications and questionable clinical benefit, PAC use is declining in clinical practice. Transpulmonary thermodilution (TPTD) cardiac output with continuous monitoring by pulse contour analysis is a clinically established, and potentially less invasive, alternative . Even though TPTD with pulse contour analysis is less invasive than PAC, it still requires placement of the central venous and peripheral arterial lines, and provides continuous data with limited reliability, requiring frequent re-calibration .

译文

液体复苏是危重患者血液动力学管理的重要组成部分之一。为了确保足够的组织灌注,应该通过优化心搏量(SV)来达到目标,同时限制充盈压力的增加和水肿的发展。为了实现该目标,SV和心输出量的绝对值不如响应诸如液体挑战之类的干预措施监测趋势重要。因此,需要在液体复苏期间连续监测SV的变化。肺动脉导管插入术(PAC)是一种侵入性方法,可对重症患者的心输出量进行连续评估。然而,由于并发症的高风险和可疑的临床益处,PAC的使用在临床实践中正在下降。经脉搏轮廓分析连续监测的经肺热稀释(TPTD)心输出量已在临床上确立,并且可能是侵入性较小的替代方法。尽管采用脉冲轮廓分析的TPTD的侵入性较PAC小,但仍需要放置中央静脉和外周动脉,并以有限的可靠性提供连续数据,需要频繁的重新校准。