摘要
目的:分析脑动静脉畸形(arteriovenousmalformations,AVM)的三维时间飞越法磁共振血管造影(3D-TimeofFlightMagneticResonanceAngiography,3D-TOFMRA)结合多层重叠薄块(multi pleoverlappingthinslabacquisition,MOTSA)和最佳倾斜非饱和激发(tiltedoptimizednonsaturatingexcita tion,TONE)技术的磁共振成像表现,探讨其应用价值。方法:对150例AVM患者分别行SE序列磁共振成像(MRI),3D-TOFMRA结合MOTSA和TONE检查。结果:MRI及3D-TOFMRA都能显示AVM的瘤巢,AVM的继发改变MRI能很好地显示,MRA能显示AVM的三维解剖结构。结论:MOTSA结合TONEMRA是无创性评价脑AVM的有效方法,结合MRI可提高诊断准确率,为临床治疗方案的选择提供帮助并能对治疗效果进行客观评价。
Aim: To analyze the MRA features of cerebral AVM with MOTSA and TONE 3D-TOF, and discuss its diagnostic value. Methods: One hundred and fifty case were studied respectively with SE MRI sequence, 3D-TOF MRA with MOTSA and TONE on a GE signa echo speed 1.5T scanner. Results: The nets of AVM could be seen on both MRI and MRA, the secondary changes of AVM were well defined on MRI and the three-dimensional anatomy of AVM could be demonstrated clearly on MRA. Conclusion: MRA with MOTSA and TONE has a definitive value in noninvasive evaluation of AVM, when combined with MRI, can improve the diagnostic accuracy, and provide essential information for the decision of treatments.
出处
《暨南大学学报(自然科学与医学版)》
CAS
CSCD
2003年第6期49-53,共5页
Journal of Jinan University(Natural Science & Medicine Edition)