Kunz P, Feinle C, Schwizer W, Fried M, Boesiger P
Institute of Biomedical Engineering and Medical Informatics, University and ETH Zurich, Switzerland.
J Magn Reson Imaging. 1999 Jan;9(1):75-80. doi: 10.1002/(sici)1522-2586(199901)9:1<75::aid-jmri10>3.0.co;2-i.
Gastric emptying and motility have previously been assessed by magnetic resonance imaging (MRI) using liquid test meals. The aim of this study was to extend the applicability of our MRI method to the assessment of gastric emptying and motility of solid meals. Gastric emptying and motility of a liquid and a solid meal, of similar chemical properties, were studied in eight volunteers. The MRI protocol combined a multislice turbo spin-echo (TSE) sequence (volume scan, resolution: 1.5 mm) and a dynamic FFE sequence (motility scan, 1 sec/image, resolution: 3.1 mm). Gastric emptying of the liquid meal was faster than emptying of the solid meal when considering half-times of emptying. However, during the first 15 minutes after ingestion, the liquid meal emptied more slowly. This was related to reduced motility with the liquid meal. In conclusion, with our MRI method it is feasible to assess gastric emptying and motility of liquid and solid meals.
此前，胃排空和动力已通过使用液体测试餐的磁共振成像（MRI）进行评估。本研究的目的是将我们的MRI方法的适用性扩展到固体餐胃排空和动力的评估。在八名志愿者中研究了化学性质相似的液体餐和固体餐的胃排空和动力。MRI方案结合了多层快速自旋回波（TSE）序列（容积扫描，分辨率：1.5毫米）和动态快速场回波（FFE）序列（动力扫描，每秒1幅图像，分辨率：3.1毫米）。考虑排空半衰期时，液体餐的胃排空比固体餐快。然而，在摄入后的前15分钟内，液体餐排空得更慢。这与液体餐动力降低有关。总之，使用我们的MRI方法评估液体餐和固体餐的胃排空和动力是可行的。
