Nishino Mizuki, Iwata Shingo, Hayakawa Katsumi, Kanao Shotarou, Morimoto Taisuke, Mukaihara Sumio, Hatabu Hiroto
Department of Radiology, Kyoto City Hospital, 1-2 Higashi-takada-cho, Mibu, Nakagyo-ku, Kyoto 604-8845, Japan.
Eur J Radiol. 2005 Feb;53(2):263-7. doi: 10.1016/j.ejrad.2004.04.002.
The purpose of this study is to demonstrate the feasibility of kinematic MR imaging in visualizing peristaltic activity in the reconstructed gastrointestinal tract with quantitative measurements. Sixteen patients with gastrointestinal reconstruction were studied with kinematic MR imaging using HASTE and/or true FISP. Peristaltic waves were noted in the retrosternal gastric segment after gastric pull through (frequency = 3.0 +/- 0.5 times/min, velocity = 2.6 +/- 0.6 mm/s) and in the residual antrum after cardiectomy (frequency = 3 times/min, velocity = 4.0 mm/s). Peristaltic waves were not apparent in the residual fundus after distal gastrectomy and in the reconstructed jejunum after pancreatoduodenectomy and gastrojejunostomy.
本研究的目的是通过定量测量来证明动态磁共振成像在可视化重建胃肠道蠕动活动方面的可行性。对16例胃肠道重建患者采用HASTE和/或真稳态进动快速成像序列进行动态磁共振成像研究。胃上提术后，在胸骨后胃段观察到蠕动波（频率=3.0±0.5次/分钟，速度=2.6±0.6毫米/秒）；贲门切除术后，在残余胃窦观察到蠕动波（频率=3次/分钟，速度=4.0毫米/秒）。在远端胃切除术后的残余胃底以及胰十二指肠切除术后和胃空肠吻合术后的重建空肠中，蠕动波不明显。
