The influencing factors of imaging accuracy were as follows: postural slant, reference plane choice of anatomical position fusion, field of view (FOV) with MR images, and control of color window of 201 Tl SPECT.

• 融合成像精度影响因素包括 :体位、解剖位置融合时基准的选择是否正确、MRI矢状面视野的大小以及SPECT彩色窗的调节。