Fast FLAIR sequence for detecting major vascular abnormalities during the hyperacute phase of stroke: a comparison with MR angiography

被引:85
作者
Cosnard, G
Duprez, T
Grandin, C
Smith, AM
Munier, T
Peeters, A
机构
[1] Clin Univ St Luc, Dept Radiol, B-1200 Brussels, Belgium
[2] Clin Univ St Luc, Dept Neurol, B-1200 Brussels, Belgium
关键词
brain ischaemia; brain; infarct; magnetic resonance imaging; magnetic resonance angiography; pulse sequences;
D O I
10.1007/s002340050761
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
In the hyperacute phase of stroke, occluded vessels can be seen as high signal on fast-FLAIR images or as absence of flow-related enhancement in maximum-intensity projection (MIP) MR angiography (MRA). To compare these techniques, we examined 53 patients within 6 h of a stroke, using a standardised MRI protocol including fast-FLAIR and 3D time-of-flight TOF MR to detect vessel occlusion or reduced flow corresponding to the suspected ischaemic territory. Brain infarcts: were confirmed on MRI after 1-5 days in 31 cases (77 %), The overall accuracy of 3D-TOF MRA was 68 % and sensitivity, specificity, positive and negative predictive values were 67 %, 71 %, 87 %, and 43 % respectively. Values for the fast-FLAIR sequence were: 65 %, 85 %, 93 % and 44 %, with an overall accuracy of 70 %, The fast-FLAIR sequence was thus able to show occluded vessels or reduced flow with about the same accuracy as 3D-TOF MRA and enabled better prediction of the ischaemic area.
引用
收藏
页码:342 / 346
页数:5
相关论文
共 11 条
[1]   MRI of head injury using FLAIR [J].
Ashikaga, R ;
Araki, Y ;
Ishida, O .
NEURORADIOLOGY, 1997, 39 (04) :239-242
[2]   EARLY DIAGNOSIS OF BASILAR ARTERY-OCCLUSION USING MAGNETIC-RESONANCE IMAGING [J].
BILLER, J ;
YUH, WTC ;
MITCHELL, GW ;
BRUNO, A ;
ADAMS, HP .
STROKE, 1988, 19 (03) :297-306
[3]  
Gillard JH, 1997, AM J NEURORADIOL, V18, P343
[4]  
KATE BH, 1989, AJNR, V10, P345
[5]  
Mikami T, 1996, NEUROL SURG TOKYO, V24, P1087
[6]   MRI of acute cerebral infarction: A comparison of FLAIR and T2-weighted fast spin-echo imaging [J].
Noguchi, K ;
Ogawa, T ;
Inugami, A ;
Fujita, H ;
Hatazawa, J ;
Shimosegawa, E ;
Okudera, T ;
Uemura, K ;
Seto, H .
NEURORADIOLOGY, 1997, 39 (06) :406-410
[7]   ACUTE SUBARACHNOID HEMORRHAGE - MR-IMAGING WITH FLUID-ATTENUATED INVERSION-RECOVERY PULSE SEQUENCES [J].
NOGUCHI, K ;
OGAWA, T ;
INUGAMI, A ;
TOYOSHIMA, H ;
SUGAWARA, S ;
HATAZAWA, J ;
FUJITA, H ;
SHIMOSEGAWA, E ;
KANNO, I ;
OKUDERA, T ;
UEMURA, K ;
YASUI, N .
RADIOLOGY, 1995, 196 (03) :773-777
[8]   Hyperacute stroke: Evaluation with combined multisection diffusion-weighted and hemodynamically weighted echo-planar MR imaging [J].
Sorensen, AG ;
Buonanno, FS ;
Gonzalez, RG ;
Schwamm, LH ;
Lev, MH ;
HuangHellinger, FR ;
Reese, TG ;
Weisskoff, RM ;
Davis, TL ;
Suwanwela, N ;
Can, U ;
Moreira, JA ;
Copen, WA ;
Look, RB ;
Finklestein, SP ;
Rosen, BR ;
Koroshetz, WJ .
RADIOLOGY, 1996, 199 (02) :391-401
[9]  
TSURUSHIMA H, 1996, NO SHINKEI GEKA, V94, P891
[10]   ACUTE CEREBRAL-ISCHEMIA - EVALUATION WITH DYNAMIC CONTRAST-ENHANCED MR IMAGING AND MR ANGIOGRAPHY [J].
WARACH, S ;
WEI, L ;
RONTHAL, M ;
EDELMAN, RR .
RADIOLOGY, 1992, 182 (01) :41-47