关键词: 肺栓塞, 诊断, 临床评分, YEARS评分, 综述

Abstract: Pulmonary embolism is a common pulmonary vascular disease with high rates of misdiagnosis and missed diagnosis. Early identification，diagnosis and treatment are essential to improve the prognosis of patients. Although pulmonary angiography is deemed as the gold standard for the diagnosis of pulmonary embolism，it has been gradually replaced by CT pulmonary angiography due to high cost，invasion and risk of radiation exposure. However，if patients with suspected pulmonary embolism are not effectively evaluated，it may lead to overuse of examinations，and waste of medical resources，as well as an increase in patients' risk of exposure to radiation. There are a variety of scoring models that can be used as assistant tools for effectively ruling out suspected pulmonary embolism. But those using the traditional scoring method are not easily to be promoted due to complexity. In contrast，the YEARS algorithm，a recently emerged model，is simple and mnemonic，which can be used to safely，effectively and rapidly exclude suspected pulmonary embolism，and is easily to be promoted. But its diagnostic value still needs to be verified since studies on its clinical application are limited. This article reviews clinical studies of YEARS algorithm，offering new ideas for pulmonary embolism diagnosis.

Key words: Pulmonary embolism, Diagnosis, Clinical score, YEARS algorithm, Review