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Dynamic Changes in Blood-Brain Barrier Permeability After Stroke Based on MR Non-invasive Vascular Water Exchange Imaging (MR-VEXI): A Single-Center Longitudinal Observational Study

Dynamic Changes in Blood-Brain Barrier Permeability After Stroke Based on MR Non-invasive Vascular Water Exchange Imaging (MR-VEXI): A Single-Center Longitudinal Observational Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600125899
Enrollment
Unknown
Registered
2026-06-01
Start date
2026-06-01
Completion date
Unknown
Last updated
2026-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stroke

Interventions

Sponsors

Shanghai Fourth People's Hospital Affiliated to Tongji University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1. Healthy volunteers - Inclusion criteria: (1) Age range: 18 - 90 years old. (2) No severe underlying diseases. (3) Able to tolerate MRI examination and free from MRI examination contraindications (such as claustrophobia, metal implants, etc.). 2. Acute stroke patients - Inclusion criteria: (1) Meet the diagnostic criteria for acute ischemic stroke, confirmed by clinical and conventional MRI (such as DWI). (2) Onset time within 24 hours to ensure capturing the blood-brain barrier changes in the acute phase. (3) Age range: 18 - 90 years old. (4) The patient or their family members can understand the research content and cooperate to complete the follow-up. (5) Able to tolerate MRI examination and free from MRI examination contraindications (such as claustrophobia, metal implants, etc.).

Exclusion criteria

Exclusion criteria: 1. History of central nervous system diseases (such as brain tumors, multiple sclerosis, severe brain trauma, etc.). 2. Recently received treatment that might affect the blood-brain barrier (such as certain chemotherapy drugs). 3. The image quality is poor and MR-VEXI analysis cannot be performed. 4. Unable to complete the T0-T3 follow-up.

Design outcomes

Primary

MeasureTime frame
Apparent Diffusion Coefficient-ROI;AXRBBB-ROI;Filter Efficiency-ROI;AXRBBB-White matter;AXRBBB-Grey matter;AXRBBB-Whole Brain;Blood biochemical indicators (red blood cells, hemoglobin);

Secondary

MeasureTime frame
mRs;Age;Gender;Baseline NIHSS Score;Volume of Lension Core;SBP;DBP;

Countries

China

Contacts

Public ContactLuo Yu

Shanghai Fourth People's Hospital Affiliated to Tongji University

duolan@hotmail.com+86 180 1641 6023

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jun 11, 2026