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单光子发射计算机断层(SPECT)可用来定量测定放射性浓度,计算物体的体积大小.但测定的SPECT值受若干因素影响,并不能完全代表真实值.本文用模型研究了影响因素之一,即空间分辨对SPECT定量值的影响.
Single photon emission computed tomography (SPECT) can be used to quantitatively determine the radioactive concentration and calculate the volume of the object, but the measured SPECT value is affected by several factors and can not completely represent the true value.This paper uses the model to study one of the influencing factors, namely space The effect of resolution on the quantitative value of SPECT.