Application of 3D contrast enhanced magnetic resonance angiography In cerebrovascular diseases
LI Wei
LONG Wan-sheng
CAI Xiao-qin
LUO Xue-mao
LIANG Ying-lin
LAN Yong
Abstract：Objective To explore the diagnosis value and influence factors of three dimensional contrast enhanced MR angiography(3D CE-MRA)in common cerebrovascular diseases.Methods Totally 450 patients underwent cerebral CE-MRA,among then,150 patients were received DSA in a week.Conventional MRI includes transverse T2WI and T1WI,transverse T2WI FLAIR,and coronal T1WI.3D fast field sequence(FFE)was used for CEMRA with Gd-DTPA(30 ml,2.5 ml/s).includes front-line,enhanced arterial phase and venous phase scan.The sion was detected by MRA,in which,65 patients were received DSA,the consistency of MRA and DSA in mild,moderate,severe stenosis and occlusion was 75.6%,83.3%,88.9%,100%,respectively.MRA is easy to assess tients were received DSA,the consistency of MRA and DSA in small.medium.large and giant aneurysms was Twenty-three patients with cerebral arteriovenous malformations was detected by MRA,in which,15 patients were underwent DSA.The sensitivity of MRA in depicting feeding arteries,draining veins was 90.7%,91.4%,respectors of MRA have acquisition time,delay time,scan parameters,K space-filled technique,contrast agent parameters.Conclusions CE-MRA is a fast,noninvasive and effective technique of diagnosing common cerebrovascular diseases.It can be the first diagnosis metllod of detecting cerebrovascular diseases.
Keywords：Magnetic resonanceContrast enhanced MR angiographyCerebrovaseular diseasesInfluence factors
Publication Date：2011-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)