Yoshida S, Tanaka S, Kamino D, Nakao M, Oka S, Kitadai Y, Hayakawa N, Haruma K, Chayama K. Initial experience with catheter probe US when using a multibending endoscope.
Gastrointest Endosc 2004;
59:889-94. [PMID:
15173810 DOI:
10.1016/s0016-5107(04)01270-2]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND
High-frequency catheter probe US provides detailed images when the scanning plane is perpendicular to the area of interest and the latter is within the focal zone. A multibending endoscope has been developed that has two bending sections that can be deflected independently. The aim of this study was to determine whether this new endoscope enhances high-frequency catheter probe US.
METHODS
High-frequency catheter probe US was performed with the multibending endoscope in 33 patients with upper-GI lesions. The endoscope was carefully maneuvered until the scanning plane was perpendicular to the area of interest and the target area was within the focal zone of the probe. The effects of deflecting the second bending section on the image and on the rotating elements in the probe were evaluated.
RESULTS
For 28 lesions, no improvement was observed with use of both bending sections. However, for 5 lesions, the US image was improved by use of the second bending section. These lesions were located in the stomach on the lesser or greater curve. In no instance did deflection of both bending sections result in uneven rotation of the mechanical elements in the probe.
CONCLUSIONS
For certain lesions, US images obtained with a catheter probe can be improved by using an endoscope with a second bending section.
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