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有文献指出断层床的衰减可致心肌下后壁放射性减低。我们就断层床的衰减对心肌断层显像的影响做了模型及临床研究,以进一步证实断层床对心肌下后壁的影响。现将初步研究结果报道如下。材料与方法1.仪器:使用 Elscint SP-4HR SPECT 仪及 SP-1计算机,配低能高分辨率准直器。
Literature shows that the attenuation of the bed can cause radioactive decrease of the posterior myocardium. We performed a model and clinical study of the effects of the attenuation of the bed on myocardial imaging to further confirm the effect of the bed on the posterior wall of the myocardium. The preliminary results are reported below. Materials and methods 1. Instrument: Elscint SP-4HR SPECT and SP-1 computer with low-energy high-resolution collimator.