What type of study is this?

This is a Quantitative Study study.

September 17, 2025

Mapping of Neurometabolic Vulnerability in Acute Ischemic Stroke Using High-Resolution 3D MRSI

Key Points

Voxel-wise maps of neurometabolic vulnerability show distinct patterns in ischemic stroke patients.
Using high-resolution 3D MRSI, regional differences in vulnerability reveal dynamic cellular changes over time.
The vulnerability index aids in improving infarct prediction accuracy for better stroke management.
Results involve 105 patients with follow-up scans to analyze metabolic patterns and their implications.

Abstract

Motivation: Characterizing neurometabolic vulnerability to ischemia is essential for better stroke management but remains largely unexplored in patients. Goal(s): To map spatial neurometabolic vulnerability patterns in ischemic stroke using high-resolution 3D 1H-MRSI. Approach: We performed 3D 1H-MRSI scans using the SPICE technique (scan time: 8 minutes, resolution: 2×3×3 mm3, FOV: 240×240×72 mm3) on 105 acute ischemic stroke patients, with 21 follow-up scans. Results: Voxel-wise vulnerability index (VI) maps for N-acetylaspartate, creatine, choline, and lactate were obtained. Regional differences in neurometabolic vulnerability and dynamic changes over time were revealed. Incorporating neurometabolic VI data improved infarct prediction accuracy. Impact: Neurometabolic vulnerability maps obtained in acute stroke patients provide useful insights into cellular vulnerability patterns that could inform more effective stroke management.

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