Further catheter modifications are needed, but it appears to be feasible to assess vascular invasion in cholangiocarcinoma and to characterize biliary strictures in a way that may be able to influence therapy options in some patients. The currently available CBUSP cannot distinguish between benign and malignant strictures. However, with technical modifications, this may be possible in the future. The clinical usefulness of CBUSP in the pancreas awaits further investigation, but pancreatic imaging is feasible.
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