What type of study is this?

This is a Quantitative Study study.

September 17, 2025

Rapid measurement of cerebral venous oxygenation using EPI-based T2-Relaxation-Under-Phase-Contrast (TRUPC)

Key Points

The novel TRUPC sequence accurately measures cerebral venous oxygenation in under 1.5 minutes, enhancing clinical utility.
In eight subjects, the TRUPC technique exhibited a measurement variability of just 3%, indicating excellent reproducibility.
Sensitivity tests with oxygen inhalation and caffeine ingestion demonstrated significant responsiveness to changes in cerebral venous oxygenation.
The technique is applicable in several brain veins, including internal-cerebral-veins and superior-sagittal-sinus, indicating broad clinical relevance.

Abstract

Motivation: Cerebral venous oxygenation (Yv) is a potential biomarker in brain diseases. However, regional measurement of Yv in clinically desirable time (e.g., 1-2 minutes) is not available. Goal(s): To develop a MR technique for rapid and accurate Yv measurement. Approach: A EPI-based T2-Relaxation-Under-Phase-Contrast (TRUPC) MRI sequence was proposed. Eight subjects were studied to assess feasibility and reproducibility. Another eight underwent O2 inhalation and caffeine ingestion to demonstrate the sensitivity to Yv changes. Results: The sequence can measure Yv in internal-cerebral-veins, straight-sinus, and superior-sagittal-sinus with a variability of 3%. It also showed excellent sensitivity to O2 and caffeine challenges. Impact: We developed a MR technique for accurate and reliable Yv measurement on brain veins within 1.5 minutes. It showed nice reproducibility and consistency under different challenges with previously developed sequence.

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Cite This Study

Gou et al. (Tue,) studied this question.

synapsesocial.com/papers/68d45b0b31b076d99fa5d153 https://doi.org/https://doi.org/10.58530/2025/0723

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