An observational study in Ischemic Stroke, Transient Ischemic Attack and Carotid Artery Stenosis (Symptomatic and Asymptomatic), sponsored by Sohag University. Recruiting at 1 site in Egypt. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-11.
Sponsored by Sohag University · Observational
This prospective observational study aims to compare the diagnostic performance of non-contrast magnetic resonance angiography (NC-MRA) and carotid Doppler ultrasonography in the evaluation of carotid artery disease among patients with ischemic cerebrovascular stroke or transient ischemic attack. A total of 200 adult patients presenting to Sohag University Hospital will undergo both imaging modalities. The study will assess the agreement between NC-MRA and carotid Doppler in detecting and grading carotid artery stenosis according to the NASCET criteria, with the goal of evaluating the clinical utility of each technique and optimizing imaging strategies for the assessment of cerebrovascular stroke.
2,612 studies on the registry are indexed under Ischemic Stroke; 971 are open to participants now.
This study's planned enrollment of 200 is below the median of 300 across 771 observational studies indexed under Ischemic Stroke.
Browse Ischemic Stroke studies →Sohag University is the lead sponsor of 1,230 studies on the registry; 636 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Adult patients (≥18 years) presenting to Sohag University Hospital with a clinical diagnosis of ischemic stroke or transient ischemic attack (TIA) who are eligible for magnetic resonance imaging and carotid Doppler ultrasonography.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
to MRI, including:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
TIA (transient ischaemic attack)
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Adult patients (≥18 years) with clinically diagnosed ischemic stroke or transient ischemic attack who undergo both carotid Doppler ultrasonography and non-contrast magnetic resonance angiography for evaluation of carotid artery disease. The findings of the two imaging modalities will be compared for the assessment of carotid artery stenosis and atherosclerotic plaque characteristics.
Internal Carotid Artery Stenosis Grade (according to NASCET criteria) assessed by Non-contrast Magnetic Resonance Angiography and Carotid Doppler ultrasonography.
Internal carotid artery stenosis grade in patients with ischemic stroke or transient ischemic attack determined according to the North American Symptomatic Carotid Endarterectomy Trial (NASCET) criteria using non-contrast magnetic resonance angiography and carotid Doppler ultrasonography. The stenosis grades obtained by the two imaging modalities will be compared.
Time frame: At the baseline imaging visit (within 7-14 days of symptom onset).
Plan to share: No
Started Jul 2026 (actual). Primary completion is estimated for Feb 2027, 7 months after the start.
Of 394 non-industry observational studies under Ischemic Stroke, half reached primary completion within 56 months of starting (the median), counting those still running; a quarter within 25 and three quarters within 140. This study's planned 7 months is below that.
Counting every sponsor, half of 436 studies reached it within 53 months; a quarter within 24 and three quarters within 127.
How these figures are worked out, and which studies are left out of them.
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