What type of study is this?

This is a Experimental Study study.

September 17, 2025

The Gradient Switching-induced Current Field in Multi-echo Gradient Recalled Echo Sequences

Puntos clave

Eddy currents affect phase images in multi-echo GRE sequences, leading to inaccuracies.
A non-harmonic field component generated by eddy currents was detected in spherical phantoms during scans.
The study involved multi-echo GRE scans under various conditions to evaluate the impact of gradient switching.
These findings necessitate further investigation into the effects of eddy currents in clinical imaging environments.

Resumen

Motivation: Accurate magnetic field calculations are critical for imaging techniques like QSM and EPT. Eddy currents generated by gradient switching may introduce inaccuracies, potentially affecting these measurements. Goal(s): This study aims to explore the existence and characteristics of eddy currents generated by gradient switching in multi-echo GRE sequences Approach: A series of multi-echo GRE scans were performed on spherical water phantoms with varying experimental conditions to evaluate their influence on the eddy currents. Results: A non-harmonic field component generated by eddy currents from gradient switching was observed in the phase maps of spherical phantoms in multi-echo GRE. Impact: These findings demonstrate the impact of eddy currents generated in multi-echo GRE by gradient switching on phase images, necessitating further investigation into their effects in vivo.

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Cite This Study

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

synapsesocial.com/papers/68d4597031b076d99fa5c3f3 https://doi.org/https://doi.org/10.58530/2025/5209

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