Newly developed surface coil for endoluminal MRI, depiction of pig gastric wall layers and vascular architecture in ex vivo study

Abstract

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.

Endoluminal MR imaging of porcine gastric structure in vivo

“…Endoluminal MR imaging was able to show 3-6 layers of the resected porcine stomach [16,17,20,22,24]. In our study, the living porcine gastric wall structure was depicted as four layers.…”

“…Also, several studies have already reported on the diagnostic performance of endoluminal MR imaging [15][16][17][18][19][20][21][22][23][24][25]. Yamada et al [20] reported that the assessments of the depth of mural invasion obtained with high spatial resolution MR imaging accurately correlated with the results of histopathologic staging in 93% of their resected gastric carcinoma cases.…”

“…Recent studies have suggested that endoluminal MRI using a surface coil enables us to provide precise information [15][16][17][18][19][20][21][22][23][24]. Endoluminal MR imaging was able to show 3-6 layers of the resected porcine stomach [16,17,20,22,24].…”

“…Many authors have reported the usefulness of endoluminal radiofrequency (RF) coils as a diagnostic and staging tool for gastrointestinal malignancies [15][16][17][18][19][20][21][22][23][24] and prostate cancer [25]. However, no paper has reported the detailed observation of the gastrointestine in vivo using MR.…”

“…We previously reported endoluminal MR imaging of the dissected porcine gastric wall structure [24]. The images had a sufficiently high resolution to depict the gastric wall with a high signal-to-noise ratio.…”