Evaluation of the role of susceptibility-weighted imaging in thrombolytic therapy for acute ischemic stroke

Fewer peripheral asymmetrical cortical veins is a predictor of favorable outcome in MCA infarctions with SWI‐DWI mismatch

“…SWI is more sensitive than WI to detect asymmetrical cortical veins in cerebral infarction because of more sensitivity of an increased concentration of deoxyhemoglobin in cortical veins . APCVs is a relatively common imaging sign that appeared in the patients with cerebral infarctions caused by steno‐occlusion of ICA or MCA . But the incidences of APCVs in the literature varied considerably.…”

“…2,27 APCVs is a relatively common imaging sign that appeared in the patients with cerebral infarctions caused by steno-occlusion of ICA or MCA. 2,[14][15][16][17][18][19][20]23,27 But the incidences of APCVs in the literature varied considerably. In Jensen-Kondering and B€ ohm's study, 31 which studied 43 articles (1145 patients), the incidence of APCVs in acute and subacute cerebral infarction (t 5 3 hours to 7 days) varied from 34% to 100%.…”

“…Previous studies had shown that prominent or increased asymmetrical prominent cortical veins (APCVs) seen on SWI were more likely to develop later brain edema and had lower rates of a favorable outcome . It was further noted that the change of APCVs, mainly the prominent APCVs, was correlated with clinical outcomes, although the correlation was inconsistent . Previous studies had demonstrated that SWI‐DWI mismatch might be used in place of PWI‐DWI mismatch to assess ischemic penumbra and to forecast favorable clinical outcome .…”

“…2,[14][15][16] It was further noted that the change of APCVs, mainly the prominent APCVs, was correlated with clinical outcomes, although the correlation was inconsistent. 2,[17][18][19][20][21] Previous studies had demonstrated that SWI-DWI mismatch might be used in place of PWI-DWI mismatch to assess ischemic penumbra and to forecast favorable clinical outcome. [17][18][19] However, there was scarcely any report on the impact of fewer APCVs on the outcome of infarction.…”

“…2,[17][18][19][20][21] Previous studies had demonstrated that SWI-DWI mismatch might be used in place of PWI-DWI mismatch to assess ischemic penumbra and to forecast favorable clinical outcome. [17][18][19] However, there was scarcely any report on the impact of fewer APCVs on the outcome of infarction. We deduced that fewer APCVs may represent richer collateral circulation and less increase of concentration of deoxyhemoglobin in cortical veins.…”