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Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

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Related Experiment Video

Updated: Jan 19, 2026

Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging

Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging

Published on: March 14, 2025

Spin-echo fMRI: The poor relation?

David G Norris¹

¹Erwin L Hahn Institute for Magnetic Resonance Imaging, UNESCO-Weltkulturerbe Zollverein, Leitstand Kokerei Zollverein, Arendahls Wiese 199, D-45141 Essen, Germany. D.Norris@donders.ru.nl

|January 17, 2012

Summary

This summary is machine-generated.

Spin-echo functional MRI (fMRI) offers higher spatial resolution but lower sensitivity than gradient-echo fMRI. Its optimal use is proposed for studying cortical columns at high magnetic field strengths.

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Area of Science:

Neuroimaging
Magnetic Resonance Imaging

Background:

Spin-echo fMRI (SE-fMRI) provides superior spatial resolution and eliminates signal dropouts compared to gradient-echo fMRI.
However, SE-fMRI suffers from a significant reduction in sensitivity.

Observation:

This article reviews SE-fMRI methods including HASTE, SSFP, RASER, and spin-echo EPI.
BOLD contrast mechanisms and signal origins in the neocortex for SE-fMRI are summarized.
Major publications on SE-fMRI are examined.

Findings:

SE-fMRI is most promising for examining cortical layers and columns.
SE-fMRI is not recommended at magnetic field strengths of 3T or below.
Fundamental limitations exist for SE-BOLD data acquisition at 7T and above, though whole-brain coverage may be valuable.
SE-BOLD appears better suited for studying cortical columns than cortical layers.

Implications:

Future research will determine if SE techniques remain the gold standard for high spatial resolution fMRI.
The application range of SE-fMRI at 7T and above will be explored.
SE-fMRI's role in high-resolution neuroimaging, particularly for cortical structures, is highlighted.