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Correlation between DWI-ASPECTS Score, Ischemic Stroke Volume on DWI, Clinical Severity and Short-Term Prognosis: A
Oana Andreea Dogariu1, Veronica Gheorman2, Ioan Dogariu3
1Ph.D. School Department, University of Medicine and Pharmacy of Craiova, Petru Rareș 2 Str., 200349 Craiova, Romania.
Brain Sciences
|June 27, 2024
Summary
Acute ischemic stroke severity, measured by NIHSS score, strongly correlates with stroke volume and short-term prognosis. Diffusion-weighted imaging (DWI) is crucial for assessing stroke severity and predicting outcomes.
Area of Science:
- Neurology
- Radiology
- Public Health
Background:
- Ischemic stroke is a growing public health concern, with incidence projected to double in individuals over 75.
- Optimizing patient management requires correlating clinical severity with ischemic stroke volume.
Purpose of the Study:
- To correlate clinical severity (NIHSS score) with ischemic stroke volume (DWI) and short-term prognosis (mRS score).
Main Methods:
- Study included 43 acute ischemic stroke patients from January to December 2023.
- Correlations assessed using Spearman and multiple linear regression analyses.
- NIHSS, ASPECTS-DWI, stroke volume, and mRS scores were evaluated.
Main Results:
- Strong positive correlation found between NIHSS score and ischemic stroke volume (r=0.982, p<0.01).
- Strong negative correlation observed between ASPECTS-DWI score and mRS score (r=-0.952, p<0.01).
- ASPECTS, stroke volume, and NIHSS collectively predicted outcomes (R²=0.94, p<0.001).
Conclusions:
- Diffusion-weighted imaging (DWI) is vital for assessing ischemic stroke severity.
- DWI aids in predicting short-term prognosis, supporting its clinical integration.
- Findings highlight DWI's role in acute ischemic stroke management.
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Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...

