骨显像常见伪影因素分析

Common shadow factor analysis of bone imaging

目的分析全身骨显像常见伪影产生的因素。方法对9606例患者进行SPECT全身骨显像,并对1457例产生伪影的图像进行各因素的分析。结果9606例图像中,产生伪影图像1457例,其中患者因素产生的伪影856例(占58·8%);工作人员操作因素产生的伪影347例(占23·8%);放射性核素显像剂因素产生的伪影254例(占17·4%);机械因素产生的伪影0例。诸因素中,人为因素1203例(占82·6%)。结论对骨显像产生伪影诸因素进行分析,为今后工作中避免或减少伪影的发生率从而提高图像的质量应从多方面加以注意和改善,把人为因素和药物的影响降到最低,以提高核医学影像的质量。

Objective To analyse the common shadow generating factors to bone imaging of the whole body. Methods Among the 9606 cases with SPEC, 1457 of whom had shadow and those factors of generating shadow were analyzed. Results There were 1457 cases with shadow imaging among 9606 cases,and 856 cases owed to patients （58. 8% ） 347 cases owed to operating factors of the staff （23.8%） ; 254 examples owed to radionuclide imaging agent（ 17.4% ） ; mechanical agents factor hadnt generate shadow,and 1203 examples were owing to human factors （82. 6% ）. Conclusions Common generating factors of shadow of bone imaging of the whole body are analyzed to decrease incidence rate of shadow. Thus the pictorial quality can be increased and the effects of human factor and pharmacal facto can be avoided so that the nuclear medicine eikonic quality can be improved.