翻译：早期及时诊断颈动脉易损斑块破裂导致的游离血栓至关重要因为其存在脱落导致更严重脑卒中的风险对降低卒中相关的发病率和死亡率也有重要意义。颈动脉超声造影检查具有操作简单、方便、实时检查、无辐射及床旁检查的优点是值得推荐的检查方法。

Early and timely diagnosis of vulnerable plaques in the carotid artery that may rupture and cause embolism is crucial, as the presence of free-floating thrombi can lead to more severe strokes and has significant implications for reducing stroke-related morbidity and mortality. Carotid ultrasound imaging is a recommended diagnostic method, due to its simple and convenient operation, real-time monitoring, non-radiation exposure, and bedside examination.