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Magnetic Resonance Imaging

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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: Jun 26, 2026

Noninvasive In Vivo Small Animal MRI and MRS: Basic Experimental Procedures

Noninvasive In Vivo Small Animal MRI and MRS: Basic Experimental Procedures

Published on: October 20, 2009

A new method in accelerating PROPELLER MRI.

Bing Keong Li¹, Michael D'Arcy, Ewald Weber

¹The University of Queensland, School of Information Technology and Electrical Engineering, Australia. joeli@itee.uq.edu.au

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|January 24, 2009

Summary

This summary is machine-generated.

A new Magnetic Resonance Imaging (MRI) method speeds up PROPELLER scans using a rotary phased array coil. This technique reduces scan time by four times without impacting image quality for brain imaging.

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Last Updated: Jun 26, 2026

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Published on: November 23, 2019

Area of Science:

Medical Imaging
Magnetic Resonance Imaging Physics

Background:

PROPELLER MRI is a valuable technique for reducing motion artifacts.
Accelerating MRI acquisition is crucial for improving patient comfort and throughput.

Purpose of the Study:

To develop and evaluate a novel method for accelerating PROPELLER MRI acquisition.
To reduce the operational time of PROPELLER MRI sequences without compromising image quality.

Main Methods:

Implementation of a rotary phased array coil.
Development of a new k-space strip acquisition strategy.
Numerical simulation of a 12-strip PROPELLER MR brain imaging sequence.

Main Results:

The proposed method significantly reduces the operational time of PROPELLER MRI.
A four-fold reduction in scan time was achieved for a 12-strip brain imaging sequence.
No apparent degradation in image quality was observed compared to conventional methods.

Conclusions:

The novel approach effectively accelerates PROPELLER MRI operation.
This method offers a promising solution for faster and more efficient brain imaging using MRI.
The technique maintains diagnostic image quality while substantially decreasing scan duration.