isotonic saline cleaned clysis and scan again at the next day can effectively decreased the disturb of physiological 18F-FDG uptake in intestinal tract.

• （4）采用延迟显像、普鲁本辛预处理、等渗清洁灌肠及隔天再次显像等方法可有效地降低18F-FDG肠道生理性浓聚的干扰。