Aldemir Evren, Apaydin Melda, Varer Makbule, Uluc Engin
Radiology Clinic, Trabzon Vakfıkebir Health Ministry Hospital, Trabzon, Turkey.
J Clin Ultrasound. 2012 Sep;40(7):399-404. doi: 10.1002/jcu.21951. Epub 2012 Jun 7.
To assess the relationship between carotid plaque echogenicity and degree of stenosis with acute and chronic stroke.
A retrospective study of cerebral MRI and carotid B-mode and Doppler ultrasonography in 60 patients with stroke. Plaque echogenicity was graded as echolucent (1), predominantly echolucent (2), predominantly echogenic (3), or echogenic (4). Sonographic findings were compared between patients with acute (group 1) and chronic (group 2) stroke.
In group 1 (n = 39 patients), the carotid plaques were grade 1 in 21, grade 2 in 22, grade 3 in 9, and grade 4 in 4 carotid arteries. In group 2 (n = 21), the carotid plaques were grade 1 in 2, grade 2 in 8, grade 3 in 4, and grade 4 in 11 carotid arteries. Plaque echogenicity was lower in group 1 than in group 2 (p < 0.05). Plaque echolucency was associated independently with acute stroke from the degree of stenosis.
Patients with acute infarcts have predominantly echolucent plaques, regardless of the degree of stenosis.
评估颈动脉斑块回声性与狭窄程度和急性及慢性卒中之间的关系。
对60例卒中患者的脑部磁共振成像（MRI）以及颈动脉B超和多普勒超声检查进行回顾性研究。斑块回声性分为无回声（1级）、以无回声为主（2级）、以有回声为主（3级）或有回声（4级）。比较急性卒中患者（第1组）和慢性卒中患者（第2组）的超声检查结果。
在第1组（39例患者）中，21条颈动脉斑块为1级，22条为2级，9条为3级，4条为4级。在第2组（21例）中，2条颈动脉斑块为1级，8条为2级，4条为3级，11条为4级。第1组的斑块回声性低于第2组（p < 0.05）。斑块无回声与急性卒中独立相关，与狭窄程度无关。
急性梗死患者主要有无回声斑块，与狭窄程度无关。
