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应用染料或热稀释法测定心输出量是创伤性技术,并非理想的方法。近20年来发展的心阻抗图计算心搏量,是一项简便而安全的非创伤性技术,但是国内外对它的可靠性一直有争论。作者应用心阻抗图和染料稀释法同体同时测定,比较运动前后的心输出量变化。
Determination of cardiac output using dye or thermodilution is a traumatic technique and is not an ideal method. The development of cardiac impedance map in recent 20 years to calculate stroke volume is a simple and safe non-invasive technology, but its reliability has been controversial at home and abroad. The authors applied both cardiac impedance map and dye dilution assay to simultaneous determination of cardiac output before and after exercise.