摘要
目的通过与数字减影血管造影(DSA)比较,评价MR黑血运动致敏驱动平衡改良技术(improved motionsensitized driven equilibrium,iMSDE)序列在诊断颈动脉狭窄中的临床价值。方法对32例患者的39支粥样硬化狭窄性颈动脉进行DSA及黑血iMSDE成像,比较两者在评估狭窄处最小管腔直径、狭窄处斑块累及长度、斑块破溃和判断最大狭窄部位的差异。结果黑血iMSDE成像与DSA相比:在判断颈动脉最大狭窄部位有较好的一致性(Kappa值=0.894);狭窄处最小管腔直径无显著性差异[(3.3±0.9)mm vs(3.2±0.8)mm,P=0.098];黑血iMSDE成像所示狭窄处斑块累及长度明显大于DSA[(21.9±5.6)mm vs(15.3±3.4)mm,P<0.001];黑血iMS-DE成像与DSA显示斑块破溃一致性较好。结论磁共振黑血iMSDE成像能清晰显示颅外段颈动脉管壁结构和粥样斑块的形态,并为临床提供较可靠和有价值的信息。
Objective To evaluate the value of the improved motion sensitized driven equilibrium（iMSDE） black-blood magnetic resonance imaging in atherosclerotic carotid stenostic artery assessment by comparing with digital subtraction angiography（DSA）.Methods Thirty-two patients with at least 60% carotid stenosis identified by duplex ultrasound were recruited for iMSDE MR imaging and DSA.The minimum lumen diameter,plaque extent,plaque rapture and location of maximal lumen stenosis on DSA and iMSDE images were independently assessed and compared.Results Compared to the DSA,the MRI showed a good consistency in defining the location of the maximal lumen stenosis（κ=0.894） and in detecting plaque ulcer,no significant difference was found in measurement of minimum lumen diameter [（3.3±0.9） mm vs（3.2±0.8） mm,P=0.098].The plaque extent measured on MRI was significantly larger than that on DSA [（21.9±5.6） mm vs（15.3±3.4） mm],P〈0.001].Conclusion The iMSDE black-blood MR imaging could provide an accurate depiction of atherosclerotic plaque and vessel wall,which will be beneficial for clinical assessment.
出处
《临床放射学杂志》
CSCD
北大核心
2012年第10期1393-1396,共4页
Journal of Clinical Radiology
基金
上海市重点学科项目(编号:S30203)
上海交通大学医学院重点学科资助项目
关键词
颈动脉
动脉粥样硬化
磁共振成像
数字减影血管造影
Carotid artery Atherosclerosis Magnetic resonance imaging Digital subtraction angiography
