摘要
目的探讨TOFu-MRA与TOF-MRA对颈部动脉狭窄的诊断价值。方法对30例超声检查确诊为颈动脉狭窄的所有患者均行TOFu-MRA、TOF-MRA及数字减影血管造影(DSA)检查,并以DSA结果为金标准,检验TOFu-MRA、TOF-MRA对颈动脉不同程度狭窄的敏感度、特异度及与DSA结果的一致性。结果 TOFu-MRA图像质量优质26例,良好2例,较差2例,图像的优良比93.3%;TOF-MRA图像质量优质22例,良好3例,较差5例,图像的优良比83.3%。30例颈部血管狭窄的患者以DSA检查结果为标准,TOFu-MRA对颈动脉轻、中、重度狭窄及闭塞患者的敏感度及特异度分别为100%、93.75%、100%、100%,100%、100%、97.56%、100%;TOF-MRA对颈动脉轻、中、重度狭窄及闭塞患者敏感度及特异度分别为100%、75%、72.73%、100%,96.88%、100%、92.68%、93.62%。与DSA一致性系数Kappa值分别为0.973、0.811。结论 TOFu-MRA对颈部动脉血管对不同程度狭窄的诊断优于TOF-MRA,可以替代TOF-MRA作为颈部血管检查的首选方法。
Objective To compare the clinical value of time of flight with sparse undersampling MRA(TOFu-MRA) with time of flight MRA(TOF-MRA) for the diseased arteries in the neck. Methods Thirty patients with carotid stenosis detected by ultrasound were selected into this study. They were confirmed by TOFu-MRA, TOF-MRA and DSA. The results of DSA, TOFu-MRA and TOF-MRA were compared to evaluate the sensitivity and specificity in diagnosis of the carotid stenosis. Results There were 26 cases with excellent image quality, 2 cases with fine image and 2 cases with poor image on images of TOFu-MRA, and 22 cases with excellent image quality, 3 cases with fine image and 5 cases with poor image on images of TOF-MRA. According to DSA results as a golden standard, the sensitivity and the specificity of diagnosing mild, moderate, severe stenosis and occlusion by TOFu-MRA were 100%, 93.75%, 100%, 100% and 100%, 100%, 97.56%, 100%, respectively and by TOF-MRA were 100%, 75%, 72.73%, 100% and 96.88%, 100%, 92.68%, 93.62%, respectively. The Kappa values between TOFu-MRA and DSA, and TOF-MRA and DSA measurement of the degree of carotid stenosis were 0.973 and 0.811 respectively. Conclusion TOFuMRA showed higher sensitivity, specificity and accuracy for carotid artery stenosis and occlusion than the TOF-MRA. It can take place of TOF-MRA as a routine examination for the neck arteries.
出处
《中华临床医师杂志（电子版）》
CAS
2017年第1期34-38,共5页
Chinese Journal of Clinicians(Electronic Edition)
关键词
颈动脉狭窄
磁共振血管造影术
对比研究
Carotid stenosis
Magnetic resonance angiography
Comparative study
