JGH Open (Jun 2021)

Usefulness of virtual touch tissue quantification for predicting the presence of esophageal varices in patients with liver cirrhosis

  • Teppei Matsui,
  • Hidenari Nagai,
  • Gou Watanabe,
  • Naoyuki Yoshimine,
  • Makoto Amanuma,
  • Kojiro Kobayashi,
  • Yuu Ogino,
  • Takanori Mukozu,
  • Yasushi Matsukiyo,
  • Yasuko Daido,
  • Noritaka Wakui,
  • Shigeru Nakano,
  • Mie Shinohara,
  • Koichi Momiyama,
  • Takehide Kudo,
  • Kenichi Maruyama,
  • Yoshinori Igarashi

DOI
https://doi.org/10.1002/jgh3.12558
Journal volume & issue
Vol. 5, no. 6
pp. 695 – 704

Abstract

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Abstract Background and Aim Measuring the hepatic venous pressure gradient (HVPG) is an established technique to detect increased portal pressure and predict the presence of esophageal varices (EVs); however, the risk of the test is greater than the information it provides. This study aimed to clarify the usefulness of virtual touch tissue quantification (VTQ), which assesses liver stiffness, in predicting the presence of EVs in patients with liver cirrhosis by comparing it with HVPG. Methods Two hundred seventeen patients with liver cirrhosis underwent VTQ, HVPG measurement, and upper endoscopy. Patients were divided into three groups: group V, hepatitis C virus liver cirrhosis (n = 40); group A, alcoholic liver cirrhosis (n = 116); and group N, other liver cirrhosis (n = 61). In each group, we performed linear regression analysis of VTQ and HVPG data. The accuracy of VTQ and HVPG measurement in predicting the presence of EVs and high‐risk EVs (EV category F2 and F3) was assessed by area under the receiver operating characteristic curve (AUROC). Results VTQ was significantly correlated with the HVPG in the whole patients and in each group, and both VTQ and HVPG values were significantly higher in patients with EVs and high‐risk EVs than in those without. The AUROC for the presence of EVs for VTQ was 0.76 in the whole sample, 0.76 in group V, 0.79 in group A, and 0.67 in group N; and for HVPG, 0.92, 0.94, 0.93, and 0.88, respectively. For VTQ, the AUROC for the presence of high‐risk EVs was 0.78 in the whole sample, 0.78 in group V, 0.73 in group A, and 0.73 in group N; and for HVPG, it was 0.85, 0.82, 0.85, and 0.82, respectively. Conclusion VTQ was reliable at predicting the presence of EVs and high‐risk EVs. Therefore, we propose that VTQ is a useful, noninvasive tool for predicting the presence of EVs in daily medical care.

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