应用鼻胃管可准确地测知流质食物胃排空时间,但需要多次插管给病人带来不快。George 发展了二重—抽样技术(DS),一次即可测出流质食物排空的全部过程。使用 r-照相机作胃体外显像亦可不用插管,并可对流、固体混合食物进行观察,但因设备昂贵,不能广泛应用。最近发现,采用廉价的固定闪烁 Application of nasogastric tube can accurately detect liquid food stomach emptying time, but the need for multiple intubation to the patient unpleasant. George developed the dual-sampling technique (DS) to measure the entire process of liquid food emptying at one time. The use of r-camera for in vitro imaging can also be without intubation, and convection, solid mixed food to observe, but because of the equipment is expensive, can not be widely used. It has recently been found that cheap, fixed flashing is used