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Updated: Feb 27, 2026
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A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
Published on: September 16, 2017
14.7K
Diffusion weighted imaging and time in acute ischemic stroke, is there any relation?
Daniel Mantilla-García1, Isabelle Mourand2, Gregory Gascou2
1Neuroradiology service, hôpital Güi-de-Chauliac, CHU de Montpellier, Montpellier, France; Fundación Oftalmológica de Santander FOSCAL, research department, Bucaramanga, Colombia.
Journal of Neuroradiology = Journal De Neuroradiologie
|June 24, 2017
Summary
Diffusion-weighted MRI (DWI) is useful for early stroke assessment. This study found no correlation between the time of stroke symptom onset and DWI ASPECTS score within the first six hours.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- Diffusion-weighted MRI (DWI) aids patient selection in acute stroke.
- Early assessment within 6 hours of symptom onset is critical.
Purpose of the Study:
- To investigate the relationship between time from stroke symptom onset and stroke volume.
- To assess if DWI ASPECTS score correlates with time to treatment.
Main Methods:
- 203 anterior circulation stroke patients were evaluated.
- DWI ASPECTS scores were calculated within 6 hours of symptom onset.
- Patients were grouped by time to DWI and stroke volume.
Main Results:
- No relationship was observed between temporal groups and DWI ASPECTS.
- Stroke volumes did not differ significantly across temporal groups.
Conclusions:
- No correlation exists between time of stroke symptom onset and DWI ASPECTS score within the first 6 hours.
- DWI ASPECTS may not be a reliable indicator of stroke volume progression in this early window.
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