Abstract
Abstract: Three‐dimensional (3D) intraductal ultrasonography (IDUS) is more useful than two‐dimensional IDUS for the diagnosis of pancreatobiliary disease. We investigated the advantages and disadvantages of the transpapillary approach for 3D‐IDUS using a newly developed system for pancreatobiliary application. In total 12 patients with a sufficiently wide orifice were examined, bile duct (BD) scanning being successful in 100% of attempted cases and main pancreatic duct (MPD) scanning in 85.7%. In all cases, acceptable radial and linear images were obtained and 3D diagnosis was accomplished. However, several primary problems were experienced; 1) The 3D probe is relatively inflexible, having a thick shaft and a long tip, such that insertion into the BD or MPD can be somewhat difficult; 2) Clear images of the BD or MPD wall were not always obtained because of artifacts produced by the 3D probe itself; 3) In some cases, linear images could not be reconstructed with BD or MPD scanning despite sufficiently clear radial scan images. In the future, development of new 3D probes with more flexible and thinner shafts, and shorter tips, should considerably enhance the diagnostic capacity of IDUS for the pancreatobiliary system.
Published Version
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