Artificial intelligence (AI) was first described in 1950; however, several limitations in early models prevented widespread acceptance and application to medicine. In the early 2000s, many of these limitations were overcome by the advent of deep learning. Now that AI systems are capable of analyzing complex algorithms and self-learning, we enter a new age in medicine where AI can be applied to clinical practice through risk assessment models, improving diagnostic accuracy and workflow efficiency. This article presents a brief historical perspective on the evolution of AI over the last several decades and the introduction and development of AI in medicine in recent years. A brief summary of the major applications of AI in gastroenterology and endoscopy are also presented, which are reviewed in further detail by several other articles in this issue of Gastrointestinal Endoscopy.

人工智能（AI）最早是在1950年描述的；但是，早期模型的一些局限性阻止了医学的广泛接受和应用。在2000年代初，深度学习的出现克服了许多这些限制。既然AI系统能够分析复杂的算法和进行自学习，我们进入了医学的新纪元，可以通过风险评估模型将AI应用于临床实践，从而提高诊断准确性和工作流程效率。本文简要介绍了过去几十年来人工智能的发展以及近年来医学界对人工智能的介绍和发展的历史回顾。还简要介绍了AI在胃肠病学和内窥镜检查中的主要应用，胃肠内镜。