Morita Yoshinori, Kutsumi Hiromu, Yoshinaka Hayato, Matsuoka Yuichiro, Kuroda Kagayaki, Gotanda Masakazu, Sekino Naomi, Kumamoto Etsuko, Yoshida Masaru, Inokuchi Hideto, Azuma Takeshi
Department of Gastroenterology, Kobe University School of Medicine, Kobe, Hyogo, Japan.
J Gastroenterol. 2009;44(5):390-5. doi: 10.1007/s00535-009-0010-5. Epub 2009 Mar 17.
The purpose of this study was to visualize the gastric wall layers and to depict the vascular architecture in vitro by using resected porcine stomachs studied with high-spatial resolution magnetic resonance (MR) imaging.
Normal dissected porcine stomach samples (n = 4) were examined with a 3 Tesla MR system using a newly developed surface coil. MR images were obtained by the surface coil as receiver and a head coil as transmitter. High-spatial-resolution spin-echo MR images were obtained with a field of view of 8 x 8 cm, a matrix of 256 x 128 and slice thicknesses of 3 and 5 mm.
T1 and T2-weighted MR images clearly depicted the normal porcine gastric walls as consisting of four distinct layers. In addition, vascular architectures in proper muscle layers were also visualized, which were confirmed by histological examinations to correspond to blood vessels.
High-spatial-resolution MR imaging using a surface coil placed closely to the gastric wall enabled the differentiation of porcine gastric wall layers and the depiction of the blood vessels in proper muscle layer in this experimental study.
本研究的目的是通过使用高空间分辨率磁共振（MR）成像研究切除的猪胃，在体外可视化胃壁各层并描绘血管结构。
使用新开发的表面线圈，用3特斯拉MR系统检查正常解剖的猪胃样本（n = 4）。MR图像由作为接收器的表面线圈和作为发射器的头部线圈获得。通过视野为8×8 cm、矩阵为256×128且切片厚度为3和5 mm获取高空间分辨率自旋回波MR图像。
T1加权和T2加权MR图像清楚地显示正常猪胃壁由四个不同的层组成。此外，固有肌层中的血管结构也被可视化，经组织学检查证实与血管相对应。
在本实验研究中，使用紧贴胃壁放置的表面线圈进行高空间分辨率MR成像能够区分猪胃壁各层并描绘固有肌层中的血管。
