Endoscopic MRI

Endoluminal MR imaging of porcine gastric structure in vivo

“…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].…”

“…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.…”

“…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.…”

New coil concept for endoluminal MR imaging

“…The first group [20, 31] to introduce an MR endoscope reported promising results for the diagnosis of gastrointestinal diseases and pointed out limitations of their design [20, 31]. Image quality of endoluminal MRI was not as clear as those acquired by EUS, and their success rate of obtaining clear images of the stomach was low (58%) [20].…”

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

“…Various authors reported the use of endoluminal radiofrequency (RF) coils as a diagnostic and staging tool in gastrointestinal diseases [5][6][7][8][9][10][11][12][13][14] and prostate cancer [15]. Up to now, computed tomography (CT) and endoscopic ultrasonography (EUS) have not provided the spatial resolution to fulfill clinical requirement with sufficient accuracy in tissue characterization [16,17].…”