The 'double‑track Sign': A Novel CT Finding Suggestive of the Diagnosis of T1a Gastric Cancer

Overview

Journal Oncol Lett

Specialty Oncology

Date 2023 Jun 5

PMID 37274467

Authors

Pan Liang

Dongbo Lv

Xiu-Chun Ren

Ming Cheng

Zhi-Wei Hu

Liu-Liang Yong

Bing-Bing Zhu

Meng-Ru Liu

Jian-Bo Gao

Affiliations

Soon will be listed here.

Abstract

Effective identification of T1a stage cancer is crucial for planning endoscopic resection for early gastric cancers. The present study aimed to determine the diagnostic value of the double-track sign in patients with T1a gastric cancer using computed tomography (CT) imaging. A total of 152 patients diagnosed with pathologically proven T1a gastric cancer at The First Affiliated Hospital of Zhengzhou University (Zhengzhou, China) between July 2011 and August 2021 were retrospectively reviewed. The control group consisted of 2,926 patients with gastritis. Clinical data, including patient characteristics and preoperative CT imaging findings with gastric morphological features, were reviewed and analyzed. Out of 51 patients with T1a gastric cancer finally included, 31 (60.8%) exhibited local double-track enhancement changes of the stomach, referred to as the 'double-track sign', on CT images. In addition, four patients (7.8%) had well-enhanced mucosal thickening of the gastric wall. Of the 2,926 control subjects, none had any double-track sign and six patients (0.2%) had local gastric wall thickening with abnormally strengthened enhancement. In conclusion, a double-track sign on CT images is beneficial in the diagnostic differentiation of T1a gastric cancer.

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