2020 Volume 96 Issue 1 Pages 57-60
We evaluated cell collection using a new catheter released by Fujifilm Medical Co. in November 2019. The new product has stiff parts at both ends of the brush for the purpose of collecting many cells. The diagnostic ability and catheter performance of this product were evaluated retrospectively in nine patients who underwent transpapillary brush cytology for diagnosis of bile duct stricture from May to November 2019. In all six malignant cases, we were able to collect good samples from brush cytology, and the accuracy was 100%. In contrast, the accuracy of bile juice cytology from an ENBD catheter was 33.3%, and that of bile duct biopsy was 66.7%. To improve the accuracy of brush cytology, both appropriate stiffness of the brush and flexibility of the catheter to reach lesions are required. Our results demonstrate the usefulness of the new product.
