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Magnetic resonance imaging: present and future applications.

D L Johnston, P Liu, G L Wismer

Canadian Medical Association Journal

|April 1, 1985

Summary

Magnetic resonance (MR) imaging shows promise for diagnosing diseases but must be compared to computed tomography (CT) due to cost and complexity. Its full clinical role requires further research in specialized medical centers.

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Area of Science:

Medical imaging
Diagnostic techniques
Radiology

Background:

Magnetic resonance (MR) imaging offers significant potential for disease diagnosis and characterization.
Its adoption is debated due to similarities with computed tomography (CT) in structural imaging, higher costs, and complexity.
MR imaging's advantages, such as lack of ionizing radiation and multi-planar imaging capabilities, are recognized.

Purpose of the Study:

To evaluate the current diagnostic capabilities and clinical utility of MR imaging compared to CT.
To determine the specific areas where MR imaging demonstrates superiority or complementarity to CT.
To identify the necessary conditions for the widespread adoption and research evaluation of MR imaging technology.

Main Methods:

Comparative analysis of MR imaging and CT scanning for various disease processes.

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Review of existing literature and clinical evidence on MR imaging's diagnostic performance.

Assessment of technical advantages and limitations of MR imaging.

Main Results:

MR imaging has shown diagnostic superiority over CT in specific, primarily neurological, disorders.
It is complementary to CT in diagnosing certain other conditions.
The utility of MR imaging for most organ systems remains unclear, pending further investigation.

Conclusions:

MR imaging is a valuable diagnostic tool, particularly in neurology, but requires rigorous comparison with CT.
Its unique features, like multi-planar imaging and lack of ionizing radiation, present future advantages.
Installation of MR imaging units should be limited to centers with robust research facilities to define its ultimate clinical role.