摘要
目的探讨高分辨MRI和超声成像诊断动脉粥样硬化斑块的价值。方法24例拟诊颈动脉粥样硬化患者同时行高分辨MRI及超声成像检查。结果24例中,共发现17例25个颈动脉粥样硬化斑块。MRI清晰显示17例患者的25处颈动脉粥样硬化病变:劲总动脉6处,颈动脉分叉14处,颈内动脉5处;且MRI在19处复杂斑块的成分显示中,可明确显示钙化、脂质核心、纤维帽及出血。超声成像检出17例患者的23处颈动脉粥样硬化:软斑块13例,硬斑块4例。超声成像对于显示贴壁小斑块较MRI清晰。结论高分辨MRI与超声成像诊断颈动脉粥样硬化斑块各具优势,超声易于检出早期小斑块,MRI对斑块成分及活动性判定优于超声成像,两者联合应用有助于颈动脉粥样硬化斑块的诊断及稳定性评估。
Objective To investigate the value B-type ultrasound（BUS）and high resolution MRI in diagnosing carotid plaque composition and stability.Methods Imaging characters of carotid plaque on BUS and high resolution MRI were compared in 24 patients with high-risk carotid atherosclerosis（CAS）.Results Of 24 cases,25 CAS plaques were found in 17 patients on MRI,of which 6 in CCA,14 in BIF,5 in ICA.MRI was able to characterize the components of internal CAS plaques,such as fibrous cap,lipid-rich core,hemorrhage,and calcification.With BUS,23 CAS plaques were found,of which 13 plaques were sorft and 4 plaques were hard.On BUS image,CAS plaques on the carotid internal wall could be shown clearly,but could not be characterized as on MRI.ConclusionBoth measurements are effective in the diagnosis of CAS.High resolution MRI is superior to BUS in evaluating the components and stability of CAS plaques.But BUS is more sensitive in detecting those shallow and long plaques.Combined use of MRI and BUS can effectively improve the diagnosis of plaque composition and stability.
出处
《江苏医药》
CAS
CSCD
北大核心
2010年第7期753-756,F0002,I0001,共6页
Jiangsu Medical Journal
关键词
动脉粥样硬化
MRI
B型超声成像
Atherosclerosis
Magnetic resonance imaging
B-type ultrasound imaging
