title: Newly developed surface coil for endoluminal MRI, depiction of pig gastric wall layers and vascular architecture in ex vivo study.
abstract: BACKGROUND
  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.
  
  
  METHODS
  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.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Department of Gastroenterology, Kobe University School of Medicine, Kobe, Hyogo, Japan. ymorita@med.kobe-u.ac.jp
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Morita
authors.forename: Hiromu
authors.initials: H
authors.lastname: Kutsumi
authors.forename: Hayato
authors.initials: H
authors.lastname: Yoshinaka
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Matsuoka
authors.forename: Kagayaki
authors.initials: K
authors.lastname: Kuroda
authors.forename: Masakazu
authors.initials: M
authors.lastname: Gotanda
authors.forename: Naomi
authors.initials: N
authors.lastname: Sekino
authors.forename: Etsuko
authors.initials: E
authors.lastname: Kumamoto
authors.forename: Masaru
authors.initials: M
authors.lastname: Yoshida
authors.forename: Hideto
authors.initials: H
authors.lastname: Inokuchi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Azuma
mesh_terms: D000818:Animals; D003287:Contrast Media; D019786:Gadolinium DTPA; D005753:Gastric Mucosa / Q000033:anatomy & histology / Q000098:blood supply; D007089:Image Enhancement; D066298:In Vitro Techniques; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods; D009130:Muscle, Smooth / Q000033:anatomy & histology / Q000098:blood supply; D012826:Silicone Elastomers; D013270:Stomach / Q000033:anatomy & histology* / Q000098:blood supply; D034421:Sus scrofa
chemical_list: D003287:Contrast Media; D012826:Silicone Elastomers; D019786:Gadolinium DTPA