What type of study is this?

This is a Quantitative Study study.

September 17, 2025

High-temporal-resolution dynamic EPI at 9.4T for monitoring renal oxygenation in rats: Responses to hyperoxia and hypoxia

SSSongsong SunNanjing Forestry University KZKaixuan ZhaoNanjing University of Aeronautics and Astronautics TQTao QuanZhujiang Hospital

Key Points

Dynamic EPI effectively monitors renal oxygenation changes, showcasing enhanced imaging capabilities.
The study utilized a 1-second temporal resolution for T2*-weighted signal monitoring during oxygen stimulation.
Model parameter maps were of higher quality, indicating significant improvements in imaging techniques.
Dynamic EPI may provide critical insights for renal injury detection and management in medical settings.

Abstract

Motivation: Rapid and dynamic MRI is essential to capture changes in the renal blood oxygen system during stepwise oxygen stimulation. Goal(s): In order to monitor the renal oxygenation various with high-temporal-resolution dynamic imaging by echo planar imaging (EPI) readout. Approach: The dynamic EPI with a 1-second temporal resolution was used to monitor the T2*-weighted signal of the rat kidney under hypoxic and hyperoxic stimulation, applying a second-order system step response model to fit the T2*-weighted signal intensity-time curves. Results: Dynamic EPI has higher temporal resolution and higher model parameter maps quality at the same image resolution. Impact: Dynamic EPI can effectively monitor the changes of renal oxygenation and may be beneficial for renal injury detection.

Perguntar à IA

Bookmark

View Full Paper