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目的 研究飞行人员胃排空的特点，加强卫勤保障工作。 方法 应用双核素单光子发射计算机体层摄影术（ＳＰＥＣＴ）技术对６４ 例飞行人员和３４ 例同一地区地勤人员进行胃排空检测。 结果 飞行人员组液体胃排空与地勤人员一样均呈指数式排空曲线，两者间无显著性差异（Ｐ＞ ０．０５）；固体食物胃排空，飞行人员组与地勤人员组类似，均呈双相幂指数函数曲线，排空前存在延迟时间Ｔ１，但飞行人员组Ｔ１ 明显缩短，为（３．１±２．８）ｍ ｉｎ，两组间有显著性差异（Ｐ＜ ０．０５）；４０．１％ 的飞行人员Ｔ１ 异常，其中３２．８％ Ｔ１ 消失，７．３％ Ｔ１ 延迟；全胃半排空时间（Ｔ１／２ ）与近端胃半排空时间（ＰＴ１／２）两组间未见明显不同；Ｔ１／２与ＰＴ１／２呈高度相关（ｒ＝ ０．８９，Ｐ＜ ０．０１）；未发现ＰＴ１／２与Ｔ１ 间有相关关系。 结论 飞行人员组固体胃排空障碍可较早地由Ｔ１ 反映出来，因此及时检测胃排空功能对飞行人员消化系统保健工作具有重要意义
Objective To study the characteristics of gastric emptying of pilots and strengthen the medical support work. Methods Dual-nuclide single photon emission computed tomography (SPECT) was used to detect gastric emptying in 64 pilots and 34 ground crew in the same area. Results There was no significant difference between the two groups (P> 0.05). The liquid gastric emptying, flight crew and ground crew were similar, (P <0.01). The curves of bi-phase exponential function showed a delay T1 before emptying, but T1 was significantly shorter in flight crew (3.1 ± 2.8) min, with significant difference between the two groups (P <0. 05); 40.1% of pilots T1 abnormalities, 32.8% T1 disappeared, 7.3% T1 delay; full gastric half-emptying time (T1 / 2) and proximal gastric emptying time (PT1 / 2) There was no significant difference between the two groups. T1 / 2 was highly correlated with PT1 / 2 (r = 0.89, P <0.01). No correlation was found between PT1 / 2 and T1. Conclusion The solid gastric emptying disorder in the flight crew may be reflected earlier by T1, so timely detection of gastric emptying function is of great significance to the health care of the pilots’ digestive system