不用显象的核探头能正确地测定左室喷血分数(EF)。这些装置包括一个单晶体和光电倍增管,与γ照相机计算机显象系统相比,有轻便、简单和费用低廉等优点,并可进行每搏之间的左室功能测定。但由于在数据采集时应用固定感兴趣区和心脏对位的“盲目性”,对左室室壁瘤病人的应用有其局限性。为此,本文着重探讨用此法测定室壁瘤病人EF值的 Undetectable nuclear probe can correctly measure left ventricular ejection fraction (EF). These devices include a single crystal and a photomultiplier tube. Compared with the gamma camera computer imaging system, these devices are light, simple and inexpensive, and can measure the left ventricular function between each stroke. However, due to the “blindness” of applying a fixed ROI and cardiac alignment during data collection, its application to patients with left ventricular aneurysm has its limitations. To this end, this article focuses on the use of this method for the determination of EF in patients with aneurysm