Evaluation of hemodynamics in esophageal varices Value of endoscopic color Doppler ultrasonography with a galactose-based contrast agent

Evaluation of arterial blood flow in esophageal varices via endoscopic color Doppler ultrasonography with a galactose-based contrast agent

“…24,25 Sato et al 8 revealed that color flow images of ECDUS were enhanced in all patients after Levovist contrast. In this study, our results indicated that the sensitivity of ECDUS in detecting the pulsatile wave was raised from 2.7% to 36.4%, using Levovist contrast.…”

“…6,7 Furthermore, Levovist contrast can improve the diagnostic quality of ECDUS examinations in patients with esophageal varices. 8 Hemodynamic evaluation of portal hypertension reveals that hepatofugal flow in the collateral veins is involved in the formation of esophageal varices, and also that a hyperdynamic state, from the lower esophagus to the cardiac area, is also involved in forming esophageal varices. The hyperdynamic state has been reported to arise due to the spread of an arterio-venous anastomosis (AV-A) in the submucosal layer of the cardiac region.…”

Usefulness of electronic radial endoscopic color Doppler ultrasonography in esophageal varices: comparison with convex type

“…[1][2][3] We also previously found that the use of Levovist contrast can improve the diagnostic quality of convex-type ECDUS of esophageal variceal patients, yielding a much clearer picture of the hemodynamics. 4 In the present study, we report the usefulness of a new electronic radial ECDUS technique in evaluating the hemodynamics of esophageal varices by comparison with convex-type ECDUS.…”

Perforating veins in recurrent esophageal varices evaluated by endoscopic color Doppler ultrasonography with a galactose-based contrast agent

“…We have previously reported that the use of Levovist contrast can improve the diagnostic quality of ECDUS in patients with esophageal varices, yielding a much clearer picture of the hemodynamics. 6 Perforating veins can be detected at a high rate by ECDUS in patients with recurrent esophageal varices after endoscopic therapy. 7 The purpose of this study was to confirm the usefulness of ECDUS with Levovist for detecting perforating veins in the esophageal wall in recurrent esophageal varices after endoscopic therapies.…”