Related Experiment Video
Updated: Feb 26, 2026

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
Published on: June 9, 2016
Multi-frequency interpolation in spiral magnetic resonance fingerprinting for correction of off-resonance blurring
Jason Ostenson1, Ryan K Robison2, Nicholas R Zwart2
1Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, USA; Chemical and Physical Biology Program, Vanderbilt University, Nashville, TN 37232, USA.
Abstract:
Magnetic resonance fingerprinting (MRF) pulse sequences often employ spiral trajectories for data readout. Spiral k-space acquisitions are vulnerable to blurring in the spatial domain in the presence of static field off-resonance. This work describes a blurring correction algorithm for use in spiral MRF and demonstrates its effectiveness in phantom and in vivo experiments. Results show that image quality of T1 and T2 parametric maps is improved by application of this correction. This MRF correction has negligible effect on the concordance correlation coefficient and improves coefficient of variation in regions of off-resonance relative to uncorrected measurements.
Related Concept Videos
NMR Spectrometers: Resolution and Error Correction
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
IR Frequency Region: Fingerprint Region
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
NMR Spectrometers: Overview

