ischemic stroke
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: In order to be eligible to participate in this study, a subject must meet all of the following criteria: • Age >=18 years; • Time from symptom onset until imaging is <9 hours*; • Clinical diagnosis of acute ischemic stroke or TIA; • Informed consent from patient or family after the admission scan (unless the patient died). * Patients who awaken with stroke symptoms can only be included if they went to sleep without any stroke symptoms and the time from going to sleep until imaging is less than 9 hours.;To be eligible for a follow-up MRI, a subject must meet all of the following criteria: • Occlusion distal to the A2 segment of the anterior cerebral artery, occlusion distal to the M1-M2 bifurcation of the middle cerebral artery, occlusion of the posterior cerebral artery (no occlusion of the basilar artery) or no visible occlusion as determined on the admission CTA scan; • No contraindications for MRI.
Exclusion criteria
Exclusion criteria: • Patients with another diagnosis such as intracerebral hemorrhage, subarachnoid hemorrhage or tumor; • Patients with known contrast allergy or renal failure.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| • Stroke recurrence rate at 2 years; • Presence and volume of acute ischemic lesions on follow-up diffusion weighted imaging (DWI) MRI. | — |
Secondary
| Measure | Time frame |
|---|---|
| • Stroke recurrence rate at 2 days, 10 days and 90 days; • Cardiac thrombus on trans-thoracic echography (TTE), trans-esophageal echography (TEE) or ECG-gated cardiac CTA in patients with suspected thrombus on admission CTA (as part of standard clinical practice, patients with suspected cardiac thrombus on admission CTA and patients without an obvious other cause of ischemic stroke will be referred to a cardiologist to confirm or detect a cardioembolic source with trans-thoracic echography followed by trans-esophageal echography if necessary or additional ECG-gated cardiac CTA); • Atherosclerotic plaque composition of the extracranial internal carotid artery or carotid bifurcation on contrast enhanced MRI; • 90 day modified Rankin scale. | — |
Countries
Netherlands