电阻抗断层成像技术监测肺血流的临床应用  

Bedside monitoring of lung perfusion by electrical impedance tomography

作　　者：王禹娴 钟鸣 Wang Yuxian;Zhong Ming(Department of Critical Care Medicine,Zhongshan Hospital of Fudan University,Shanghai 200032,China)

机构地区：[1]复旦大学附属中山医院重症医学科,上海200032

出　　处：《中华医学杂志》2022年第36期2828-2833,共6页National Medical Journal of China

基　　金：上海市公共卫生体系建设三年行动计划优秀学科带头人(GWV-10.2-XD32);上海市“科技创新行动计划”学科带头人(20XD1420800);国家自然科学基金(81971807)。

摘　　要：作为一种非有创、无辐射的床旁成像手段,目前电阻抗断层成像技术(EIT)可对患者进行实时的肺通气评估和肺血流监测,从而实现床旁通气血流比的可视化,有效指导低氧血症的病理生理机制研判,同时也为肺血流生理学的研究提供新方法。在新型冠状病毒肺炎的研究及治疗中EIT也发挥了其独特、不可替代的作用。同时作为功能性成像,该技术的操作细节和图像重建算法仍需要更多的研究去进一步优化,在临床应用中提供更稳健的评估。本文从EIT肺血流监测的方法介绍、操作实施与监测指标、应用及相关研究进展三个方面进行了阐述。As a non-invasive and radiation-free bedside imaging method,electrical impedance tomography(EIT)can perform real-time regional pulmonary ventilation evaluation and pulmonary blood flow monitoring for patients,thus realizing bedside ventilation/perfusion matching visualization,effectively guiding the pathophysiological mechanism of hypoxemia,and providing a new method for the study of pulmonary blood flow.EIT has also played a unique and irreplaceable role in COVID-19 research and treatment.At the same time,as functional imaging,the operation details and image reconstruction algorithm of this technology still need to be further optimized by more researches to provide a more robust evaluation in clinical application.In this paper,EIT pulmonary blood flow monitoring methods,operation and implementation of monitoring indicators,application and related research progress will be described.

关 键 词：通气与血流灌注比值 肺血流 电阻抗断层成像技术 高渗盐水造影 

分 类 号：R563[医药卫生—呼吸系统]