O'Farrell C M, FitzGerald D E
Vascular Medicine Unit, St Mary's Hospital, Dublin, Ireland.
Br J Ophthalmol. 1992 Nov;76(11):656-9. doi: 10.1136/bjo.76.11.656.
The extracranial carotid arteries of 165 patients with retinal ischaemic symptoms were examined with duplex ultrasound. Both the degree of stenosis and the morphological appearance of the lesions were examined. Ipsilateral carotid artery disease was found in 88% of patients. Degrees of stenosis of between 50-99% were found in 33% of patients, the majority of these lesions being complex heterogeneous in nature. Stenosis of < 50% was found in 40% of arteries. The majority of lesions causing < 20% stenosis were homogeneous in nature. However, in stenosis of 20-49%, 63% of lesions were found to be complex heterogeneous. A similar distribution of lesions was found in the contralateral carotid arteries. It is important to examine both ipsilateral and contralateral arteries, and to evaluate the morphological characteristics of all lesions causing > 20% stenosis.
对165例有视网膜缺血症状患者的颅外颈动脉进行了双功超声检查。检查了狭窄程度和病变的形态外观。88%的患者发现同侧颈动脉疾病。33%的患者狭窄程度在50%-99%之间，这些病变大多数本质上是复杂的异质性病变。40%的动脉狭窄程度<50%。导致狭窄<20%的病变大多数本质上是均匀的。然而，在20%-49%的狭窄中，63%的病变被发现是复杂的异质性病变。在对侧颈动脉中也发现了类似的病变分布。检查同侧和对侧动脉，并评估所有导致>20%狭窄的病变的形态特征很重要。
