Application value of prominent vessel sign on magnetic susceptibility weighted imaging in stroke

doi:10.3969/j.issn.1004-583X.2017.09.001

Abstract

Abstract: In the patients with acute stroke， the oxygen extraction fraction(OEF) is increased in the hypoperfused parenchyma， resulting in an increase in the ratio of deoxygenated hemoglobin to oxygenated hemoglobin in the capillary and vein. Because Susceptibility weighted imaging(SWI) is exquisitely sensitive to paramagnetic substances， such as deoxyhemoglobin，prominent vessel sign(PVS) will appear on SWI when the concentration of deoxyhemoglobin in the veins increases. The presence of PVS can be used to assess ischemic penumbra and cerebral reperfusion therapy， and also predict the establishment of collateral circulation and brain reserve capacity. Moreover， the presence of PVS is also related to the prognosis of stroke.

Key words: stroke, susceptibility weighted imaging, prominent vessel sign

Jia Yanan， Liu Junyan. Application value of prominent vessel sign on magnetic susceptibility weighted imaging in stroke[J]. Clinical Focus, doi: 10.3969/j.issn.1004-583X.2017.09.001.

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URL: https://huicui.hebmu.edu.cn/EN/10.3969/j.issn.1004-583X.2017.09.001

https://huicui.hebmu.edu.cn/EN/Y2017/V32/I9/737

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Application value of prominent vessel sign on magnetic susceptibility weighted imaging in stroke

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