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动态心脏显象系统能为临床提供有用的资料,但设备昂贵,且不能立时发出报告。闪烁探头式装置的体积和耗费均比闪烁γ照相机小十倍,若配以微处理机技术,也能进行数据的采集、计数和显示。本文就二者在探测左心功能不全方面的效果进行比较。方法:60例病人于注射~(99m)锝标记的人血清白蛋白后,随机顺序分别进行γ照相或核听诊器测定。左室喷血分数小于0.50或有局部室壁活动异常者定为心功能异常。核听诊器包括心电图门电路、微处理机、5厘米碘化钠晶体、2.75英吋视野的聚焦型准直器。采用定位监测模式以选择最合适的左心
Dynamic heart imaging system can provide useful information for clinical, but the equipment is expensive, and can not immediately report. Scintillation The probe unit is ten times smaller and fainter than a flashing gamma camera. With microprocessor technology, data acquisition, counting and display are also possible. This article compares the effectiveness of the two in detecting left ventricular dysfunction. Methods: Sixty patients were injected γ (99m) technetium labeled human serum albumin, and were randomly divided into γ - ray or nuclear stethoscope. Left ventricular ejection fraction is less than 0.50 or have abnormal activity of the local ventricular wall was identified as cardiac dysfunction. The nuclear stethoscope includes an electrocardiogram gate, a microprocessor, a 5-centimeter sodium iodide crystal and a 2.75-inch field of focus collimator. Positioning monitoring mode to select the most suitable left heart