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Related Experiment Video

Updated: Sep 9, 2025

Spin Saturation Transfer Difference NMR SSTD NMR: A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes

Spin Saturation Transfer Difference NMR SSTD NMR: A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes

Published on: November 12, 2016

Pure steady-state CEST.

Johannes Hammacher¹, Christoph Kolbitsch¹, Patrick Schünke¹

¹Physikalisch-Technische Bundesanstalt (PTB), Berlin and Braunschweig, Germany.

Magnetic Resonance Imaging

|September 3, 2025

Summary

This summary is machine-generated.

A new chemical exchange saturation transfer (CEST) sequence design achieves high performance by acquiring data in the pure CEST steady-state. This novel approach enhances sensitivity and image quality in various experimental settings.

Keywords:

CEST Interleave Spirals Steady-state

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Last Updated: Sep 9, 2025

Spin Saturation Transfer Difference NMR SSTD NMR: A New Tool to Obtain Kinetic Parameters of Chemical Exchange Processes

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Published on: November 12, 2016

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Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

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Published on: February 23, 2017

Area of Science:

Magnetic Resonance Imaging
Biomedical Engineering

Background:

Chemical Exchange Saturation Transfer (CEST) is a functional MRI technique.
Optimizing CEST sequences is crucial for improving sensitivity and diagnostic capabilities.
Existing CEST sequences face challenges in achieving consistent data acquisition and high signal-to-noise ratios.

Purpose of the Study:

To develop and validate a novel steady-state Chemical Exchange Saturation Transfer (CEST) sequence.
To leverage the pure CEST steady-state for enhanced sensitivity and CEST effects.
To improve image quality and MTR_asym scores compared to conventional methods.

Main Methods:

A novel steady-state CEST sequence was designed based on a physical model of longitudinal magnetization.
The sequence design was rigorously tested using in-silico numerical simulations.
Validation was performed through in vitro and in vivo experiments.

Main Results:

The developed Multi-2D Spiral pure steady-state CEST sequence demonstrated superior sensitivity and efficacy.
Consistent data acquisition in the pure CEST steady-state was achieved.
High MTR_asym scores and improved image quality were observed in vitro and in vivo.

Conclusions:

Acquiring data within the pure CEST steady-state is a promising strategy for enhancing CEST MRI.
The novel sequence design shows significant potential for improved diagnostic applications.
Further in vitro and in vivo studies are warranted to fully explore the capabilities of this technique.