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作者用交变电磁场和脉冲电磁场作用于28只成年的非纯系狗,观察了磁场对心血管功能状态的影响.所采用磁疗仪的感应器可输入两种电流,即正弦电流与脉冲电流,磁感强度在输入正弦电流时为30mT,输入脉冲电流时为37mT.磁头用特别的带子固定于犬胸部心脏投影区.磁场连续作用1小时,每天1次,共10天。实验动物心脏功能状态根据血液动力学指标评定。这些包括心室内压力曲线、主动脉压和热稀释(Thermodilution)曲线.用传感器测量压力,并将压力曲线、稀释曲线与ECG 同步记录.此外还测定心室舒张期末和收缩期血压、心室内压力最大升高速度,心脏收缩指数,每分钟喷
The authors used an alternating magnetic field and a pulsed electromagnetic field to act on 28 adult non-pure dogs to observe the effects of magnetic fields on the cardiovascular function.Magnetic therapy sensors were used to input two currents, sinusoidal current and pulsed current , The magnetic induction intensity is 30mT when the sinusoidal current is input, and 37mT when the pulse current is input. The magnetic head is fixed to the canine heart projection area with a special magnetic tape, and the magnetic field acts continuously for 1 hour and once a day for 10 days. Cardiac function in experimental animals was assessed according to hemodynamic criteria. These include the ventricular pressure curve, the aortic pressure and the thermodilution curve, and the pressure is measured with a sensor and the pressure curve, the dilution curve are recorded simultaneously with the ECG, and the end diastolic and systolic blood pressure are measured, the pressure in the ventricle is maximum Increase speed, systolic index, spray every minute