放射性核素胃排空显像

Radionuclide gastric emptying imaging

放射性胃排空显像具有方法简便、无创伤、可重复、符合生理状况、可精确定位等优点 ,它对消化道疾病病因学探讨和胃肠道功能研究具有重要的临床价值 ,是测定胃排空的金标准。本文结合临床工作经验和文献复习 ,对放射性核素胃排空测定方法、标记试餐标准化、胃感兴趣区的确定及常见影响因素等新技术。

Scintigraphic gastric emptying has the advantages of simplicity, non invasion, reproducibility, and accordance with physiological status and precision in locating. It has an important value in the etiological investigation of alimentary tract disease and gastrointestinal functional study, and has been considered to the gold standard for gastric emptying measurement. In this review, new techniques and new opinions on the methodology of radionuclide gastric emptying measurement, standardization of radiolabelled test meal, definition of ROI and factors influencing on the results were evaluated according to our clinical work or experience and literatures.