摘要
目的比较基于减影的径向采集逐点编码时间缩减的超短TE静音磁共振血管成像(Petra qMRA)与三维飞行时间磁共振血管成像(3D-TOF MRA)对颈内动脉C2~C7段的成像质量。方法前瞻性搜集81例怀疑脑血管疾病的患者行Petra qMRA与3D-TOF MRA检查,对颈内动脉C2~C7段血管结构采用评分法进行评估。采用Wliconxon秩和检验比较Petra qMRA与3D-TOF MRA在颈内动脉C2~C7段血管结构的评分差异。采用一致性Kappa分析评估观察者间的一致性。结果两名观察者对81例患者的Petra qMRA与3D-TOF MRA颈内动脉C2~C7段图像评估具有良好的一致性(Kappa=0.774)。Petra qMRA与3D-TOF MRA颈内动脉C2~C7段图像优良率差异具有统计学差异(χ^2=12.14,P=0.000)。Petra qMRA与3D-TOF MRA显示颈内动脉C2~C7段血管评分分别是(3.93±0.589)分、(3.49±0.572)分,差异具有统计学差异(Z=-4.698,P=0.000)。Petra qMRA与3D-TOF-MRA对颅内动脉狭窄或闭塞者与脑动脉瘤术后者,两种技术图像优良率之间,有统计学差异(χ^2=4.121,P=0.042和χ^2=6.667,P=0.010)。结论Petra qMRA的颈内动脉C2~C7段图像质量高于3D-TOF MRA;对于颅内动脉狭窄或闭塞者以及脑动脉瘤术后者其成像优于3D-TOF MRA。
Objective To compare the imaging quality of ultra-short TE silent magnetic resonance angiography(Petra qMRA)and three-dimensional time-of-flight magnetic resonance angiography(3 D-TOF MRA)for C2-C7 segments of internal carotid artery based on subtraction radial acquisition and point-by-point coding time reduction.Methods 81 patients suspected of cerebrovascular diseases were prospectively collected and examined with Petra qMRA and 3 D-TOF MRA.The vascular structure of C2-C7 segment of internal carotid artery was evaluated by scoring method.Wliconxon rank sum test was used to compare the difference in scoring between Petra qMRA and 3 D-TOF MRA in C2-C7 segment of internal carotid artery.Consistency Kappa analysis was used to evaluate the consistency between observers.Results Two observers have good consistency in the evaluation of Petra qMRA and 3 D-TOF MRA images of C2-C7 segments of internal carotid artery in 81 patients(Kappa=0.774).There was a statistical difference between Petra qMRA and 3 D-TOF MRA in the excellent and good image rate of C2-C7 segment of internal carotid artery(χ^2=12.14,P=0.000).Petra qMRA and 3 D-TOF MRA showed that the vascular scores of C2-C7 segment of internal carotid artery were(3.930589)and(3.490.572)respectively,with statistical difference(Z=-4.698,P=0.000).Petra qMRA and 3 DTOF-MRA have statistical differences in the excellent and good image rates of intracranial artery stenosis or occlusion and cerebral aneurysm surgery(χ^2=4.121,P=0.042 andχ^2=6.667,P=0.010).Conclusion Petra qMRA is superior to 3 D-TOF MRA in image quality of C2-C7 segment of internal carotid artery.Petra qMRA is superior to TOF MRA in imaging of patients with intracranial artery stenosis or occlusion and patients after cerebral aneurysm surgery.
作者
马锋
张树桐
王翔
谢元亮
胡芸
MA Feng;ZHANG Shutong;WANG Xiang(Department of Radiology,Wuhan Central Hospital Affiliated to Tongji Medical College,Huazhong University of Science and Technology,Wuhan,Hubei Province 430014,P.R.China)
出处
《临床放射学杂志》
CSCD
北大核心
2020年第9期1728-1732,共5页
Journal of Clinical Radiology
关键词
磁共振成像
血管造影术
超短回波时间
图像质量
Magnetic resonance imaging
Angiography
Ultrashort echo time
Image quality
