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Relationship between thrombosis and vascular responsibility in acute cerebellar ischemic stroke by 3.0 Tesla SWI and MRA |
XU Kai-xi, CHEN Xin-jian, ZUO Tao-sheng, MA Xian-jun, BIAN Guang-rong, WANG Jin, HU Fang-yun, WANG Hui |
Lianyungang Hospital Affiliated Hospital of Nanjing University of Chinese Medicine, Lianyungang Jiangsu 222000, China |
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Abstract Objective: To investigate the effects of 3.0T magnetic resonance susceptibility weighted imaging(SWI) and MRA in thrombosis and according vascular responsibility in acute cerebellar ischemic stroke and the clinical application value. Methods: Thirty cases of acute ischemic stroke in cerebellum(<72 h) were enrolled with conventional brain MRI, MRA and SWI. Susceptibility vessel sign(SVS) on SWI and arterial stenosis or occlusion were analysed and correlated. Results: Hyperintensity on DWI and hypointensity on ADC maps were shown in all 30 cases of acute cerebellar ischemic stroke. Among all, 70%(21 cases) were from inferior posterior cerebellar artery, 23.3%(7 cases) were from anterior posterior cerebellar artery, and 6.7%(2 cases) were from anterior cerebellar artery. MRA showed cerebellar arterial stenosis or occlusion in 14 cases(46.7%), but failed in the rest 16 cases(53.3%). SVS were shown in 26 cases(86.7%) with double SVS in 7 cases, while the 4 cases had no SVS(13.3%). SWI and MRA showed significant difference in displaying SVS in cerebellar arteries and responsible vessels(χ2=10.800, P=0.002). Conclusion: SWI and MRA showed obvious consistency in displaying responsible vessels in acute cerebellar ischemic stroke. SWI was much better than 3D-TOF-MRA in detecting small arterial thrombosis.
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Received: 31 May 2016
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