Treating ischaemic stroke with intravenous tPA beyond 4.5 hours under the guidance of a MRI DWI/T2WI mismatch was safe and effective.

Purpose: Clinical trials have provided evidence that treating patients with acute ischaemic stroke (AIS) beyond 4.5 hours was feasible. Among them using MRI diffusion-weighted imaging/fluid attenuation inversion response (DWI/FLAIR) mismatch to guide intravenous tissue plasminogen activator (tPA) was successful.

Ginsenoside Represses Symptomatic Intracerebral Hemorrhage after Recombinant Tissue Plasminogen Activator Therapy by Promoting Transforming Growth Factor-β1.

Background: Currently, the most effective treatment for brain ischemic stroke is recombinant tissue plasminogen activator (rt-PA); however, increased incidence of symptomatic intracerebral hemorrhage severely reduced its favorable treatment outcome.

Methods: We aimed to investigate the effect of ginsenoside (Gs) on symptomatic intracerebral hemorrhage after rt-PA treatment. Stroke patients were randomly divided into 2 treatment groups, one receiving rt-PA + placebo (Pc) and the other rt-PA + Gs.

Comparison of fast MRI-based individual thrombolysis therapy for patients with superacute infarction.

Background: The aim of this study is to investigate the outcomes of magnetic resonance imaging (MRI)-based individual thrombolysis therapy using recombinant tissue plasminogen activator (rt-PA) in patients with superacute infarction, comparing the outcome in 1 group of patients treated within 4.5 hours compared with 4.5- to 12-hour window treatment group.

Clinical outcomes of fast MRI-based trombolysis in wake-up strokes compared to superacute ischemic strokes within 12 hours.

Background: It is unknown whether thrombolysis is beneficial in patients with Wake-Up Ischemic Strokes (WUIS). This study compares the clinical outcomes of MRI-based intravenous thrombolysis in patients with hyperacute ischemic stroke presenting within 12 hours of symptom onset against WUIS patients receiving the same therapy.

Methods: Patients presenting within 12 hours of acute stroke symptom onset and those with WUIS confirmed by CT, and without intracranial hemorrhage, were encouraged to perform an emergent brain MRI scan to confirm the diagnosis of hyperacute ischemic stroke [hyper-intense in diffusion-weighted imaging (DWI) and no hypo-intense change in T2-weighted imaging (T2WI) or FLAIR].

Susceptibility-weighted imaging for cerebral microbleed detection in super-acute ischemic stroke patients treated with intravenous thrombolysis.

Objective: Fast magnetic resonance imaging (MRI) and susceptibility-weighted imaging (SWI) methods may provide more accurate detection of the highly variant time window for successful intravenous (IV) thrombolytic drug treatment (averaging 3 hours) for cerebral microbleeds (CMBs) in acute stroke patients.

Methods: This prospective study applies fast MRI and SWI for examination of 279 prescreened ischemic stroke patients within 12 hours of stroke onset. One hundred and sixty-two (58.

Fast multimode MRI based emergency assessment of hyperacute stroke thrombolysis.

Objective: To investigate the value of fast multimode magnetic resonance imaging (MRI) based emergency assessment hyperacute stroke thrombolysis.

Methods: One hundred and twenty four patients with 12 hour window acute ischemic strokes were examined by fast multimode MRI, and among them, 46 patients with hyperacute cerebral infarction confirmed by fast multimode MRI were treated by recombinant tissue plasminogen activator and followed up periodically by MRI.

Results: The 46 patients selected by fast multimode MRI to receive thrombolytics demonstrated clinical improvement with 90 days modified Rankin scale scores < or =2 and life quality Barthal index of 80-100.

The application of fast multiparametric protocol MRI-based thrombolysis with rt-PA hyperacute cerebral infarction.

Objective: To investigate the value of fast multiparametric protocol magnetic resonance imaging (MRI)-based thrombolysis in hyperacute cerebral infarction.

Methods: Seventy-seven patients with acute ischemic stroke were examined by multiparametric protocol MRI and among them, 12 patients with hyperacute cerebral infarction were treated by recombinant tissue plasminogen activator (rt-PA) and followed up periodically by MRI.

Results: The 12 patients selected by FMPMRI to receive thrombolysis demonstrated clinical improvement, with 90 day modified Rankin scale scores (mRs) < or = 2 and life quality Barthel index (BI) of 80-100.