| 摘要: |
| 目的 阐述应用二维超声测量健康成年人的全胃容积（volume of whole stomach, VWS）的方法及步骤并进行重复性验证，探讨相关影响因素。方法 99例健康志愿者饮入500ml温水充盈胃腔后即刻进行超声成像，分别测量胃底最大切面、胃体及胃窦短轴切面面积、胃体及胃窦长径。随机选取20名志愿者进行重复性检验，探究同一操作者两次测量结果及两名操作者分别测量结果的一致性。将胃底视作球体，胃体、胃窦视作圆柱体，三者体积相加计算得出VWS，并分析其与性别、年龄、体重指数的关系。 结果：1）通过变换体位，液体能够让胃底、体、窦充分充盈，清楚显示测量相关断面；2）超声检查可以测量胃底面积、胃体长径、胃体面积、胃窦面积、胃窦长径，上述参数在同一操作者两次测量间的变异系数分别为5.9%、5.7%、14.2%、9.9%、6.3%，在两名操作者间变异系数分别为14.3%、10.6%、14.9%、18.1%、18.9%；由上述参数计算所得到的VWS的操作者内及操作者间的变异系数分别为5.8%和13.7%。3）健康成年人饮入500ml温水后VWS的参考值为656±91cm3；4）VWS与性别及年龄无明显相关性；与体重指数呈正相关。 结论 本研究建立了一种测量VWS的简便易行的方法，具有较高重复性；利用上述方法得到的健康成年人VWS，体重指数是其主要影响因素。 |
| 关键词: 超声 胃容积 影响因素 |
| DOI： |
| 投稿时间：2021-08-26修订日期：2021-10-06 |
| 基金项目:四川省科技厅支撑项目(2021YJ0243)作者单位：610000 成都市,四川大学华西医院超声科通讯作者：庄华,Email：annzhuang@yeah.net |
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| Study on ultrasonic measurement method of total gastric volume in healthy adults immediately after drinking water |
| JiangHuan,ZhuangHua |
| (The First People&Department of Ultrasound,West China Hospital of Sichuan University) |
| Abstract: |
| Objective To propose an optimal method in acquiring the volume of whole stomach (VWS) of healthy adults by ultrasound, and validate its repeatability. Related influencing factors were also explored. Methods Conventional ultrasound was conducted in 99 healthy volunteers after 500ml water-drinking immediately, among whom 20 volunteers were chosen for the repeatability validation, including inter- and intra-operators. Measurements were taken to get the area of gastric fundus, gastric body, gastric antrum in the largest short axis sections. The lengths and diameters of gastric body as well as antrum were also calipered. Assuming gastric fundus as a sphere, gastric body and antrum as cylinders, the VWS were obtained by summing up the volumes. The variable coefficients between the measurements were calculated to validate the inter- and intra-operators repeatability. The relationship between VWS and gender, age, and body mass index were also analyzed. Results 1) The gastric fundus, body and antrum were completely filled with liquid by appropriate body positions. The sections of measurements were revealed clearly. 2) The gastric fundus area, gastric body length, gastric body area, gastric antrum area, gastric antrum length could be measured by ultrasound. The intra-operator variable coefficients of the above parameters were 5.9%,14.2%,9.9%,5.7% and 6.3%, respectively. The inter-operators variable coefficients were 14.3%,14.9%,18.1%,10.6% and 18.9%, respectively. The total intra- and inter-operators variable coefficients of VWS were 5.8% and 13.7%, respectively. 3) The reference value of VWS in healthy adults after water-drinking was 656±91cm3. 4) VWS was not significantly related with gender or age, yet positively associated with body mass index. Conclusion This study established a feasible and simple method to obtain VWS with high repeatability. Body mass index was the main influencing factor for VWS in healthy adults. |
| Key words: Ultrasonography Gastric volume Influencing factors |
