title: Feasibility of interventional endoscopic ultrasound using forward-viewing and curved linear-array echoendoscope: a literature review.
abstract: Oblique-viewing curved linear-array echoendoscopes are widely used for interventional endoscopic ultrasound (EUS), not only for diagnostic but also for therapeutic procedures. Recently, development of a forward-viewing curved linear-array echoendoscope (FV-ES) has been made. Several reports describe the usefulness of this new equipment for therapeutic interventional EUS, especially for pseudocyst drainage. A salient advantage of the FV-ES is that it enables the axial application of force during needle insertion and stenting. Furthermore, by attaching a cap device to the tip, the endoscope's capability can be expanded. Although the FV-ES has a narrower scanning range (90 deg) than that afforded by the oblique-viewing curved linear-array echoendoscope (180 deg), this characteristic reportedly does not hinder the performance of interventional EUS. The FV-ES might contribute to the advancement of interventional EUS.
authors.affiliation: Department of Gastroenterology and Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan. irisawa@fmu.ac.jp
authors.forename: Atsushi
authors.initials: A
authors.lastname: Irisawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Imaizumi
authors.forename: Takuto
authors.initials: T
authors.lastname: Hikichi
authors.forename: Tadayuki
authors.initials: T
authors.lastname: Takagi
authors.forename: Hiromasa
authors.initials: H
authors.lastname: Ohira
mesh_terms: D004066:Digestive System Diseases / Q000000981:diagnostic imaging*; D019723:Endoscopes; D019160:Endosonography / Q000295:instrumentation*; D004867:Equipment Design; D005240:Feasibility Studies; D006801:Humans