视网膜是体内代谢最旺盛的组织器官之一,氧需求量很高。视网膜长期处于低氧状态(如糖尿病眼病)会产生显著的、严重的不良后果,一般认为这是导致视网膜结构或功能不可逆性改变的根本原因。然而,采用传统方法测量视网膜氧张量有多方面的局限性。随着磁共振成像技术的发展,采用MRI进行无创地检测视网膜氧张量变化已成为可能。本文对糖尿病视网膜病变的MR研究进展进行综述。 The retina is one of the most metabolized tissues and organs in the body, with high oxygen demand. Long-term retinal hypoxia (such as diabetic eye disease) will have significant and serious adverse consequences, is generally believed that this is the root cause of irreversible changes in retinal structure or function. However, the traditional method of measuring retinal oxygen tension has many limitations. With the development of magnetic resonance imaging technology, using MRI to detect retinal oxygen tension changes non-invasively has become possible. This article reviews the progress of MR in diabetic retinopathy.