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Review question / Objective: This meta-analysis investigated the value of rsDECT -based non-invasive assessment of the severity of esophagus varices and the risk of hemorrhage in patients with cirrhotic portal hypertension. Eligibility criteria: Studies meeting the following criteria were included: Studies evaluating the effect of rsDECT on EV in patients with hepatic cirrhosis, and published in Chinese or English; The diagnosis was based on acknowledged gold standard. Containing complete four-grid table data of diagnostic tests, which can be extracted directly or indirectly. Review, case-report, conference summary, animal study, and repeatedly published study were excluded.Based on the severity of EV shown in the endoscopy, patients in the study group were classified into the mild EV (EV1), medium EV (EV2), or severe EV (EV3) groups according to the General Rules for Recording Endoscopic Findings of Esophagogastric varices (The Japan Society for Portal Hypertension) : EV1, slightly linear expansions; EV2, moderately beaded expansions; EV3, significantly nodular or neoplastic expansions.

Rapid switching kVp dual energy CT Material Quantitative Determination for Non-invasive Assessment of Portal Hypertensive Esophagus Varices in Patients with Hepatic Cirrhosis: A Systematic Review and Meta-analysis