Gastric adenocarcinoma is the fifth most common malignancy in the world and the third leading cause of cancer death in both women and men. In 2012, its estimated global incidence was 952,000 new cases with an estimated 723,000 deaths worldwide [1]-[3]. It is projected to rise from 14th to eighth in all-cause mortality in the near term, primarily due to the growing and aging populations in high-incidence areas, such as Latin America and eastern Asia [4], [5]. Unlike any other major cancer, gastric cancer demonstrates marked geographic variability in regions and within countries, with more than 70% of incident cases concentrated in lowand middle-income countries (LMICs) [1], [2].

中文翻译：

---

低收入国家的胃癌筛查：超低成本内窥镜检查程序的系统设计、制造和分析

胃腺癌是世界上第五大最常见的恶性肿瘤，也是女性和男性癌症死亡的第三大原因。2012 年，估计全球发病率为 952,000 例新病例，估计全球有 723,000 例死亡[1]-[3]。预计短期内其全因死亡率将从第 14 位上升至第 8 位，这主要是由于拉丁美洲和东亚等高发地区人口的增长和老龄化[4], [5]。与任何其他主要癌症不同，胃癌在地区和国家内部表现出明显的地理差异，超过 70% 的发病病例集中在低收入和中等收入国家 (LMIC) [1], [2]。