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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...

Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called a...

Imaging Studies I: CT and MRI

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
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Imaging Studies for Cardiovascular System IV: CMRI

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...

Imaging Studies for Cardiovascular System III: X-Ray

Imaging Studies for Cardiovascular System III: X-Ray

The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
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An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...

Imaging Studies II: Ultrasonography

Imaging Studies II: Ultrasonography

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Related Experiment Video

Updated: Jun 9, 2026

Automated Joint Space Detection Improves Bone Segmentation Accuracy

Automated Joint Space Detection Improves Bone Segmentation Accuracy

Published on: November 28, 2025

[MR-imaging of joints].

R Guggenberger¹, Gustav Andreisek

¹Institut für Diagnostische und Interventionelle Radiologie, Universitätsspital Zürich, Zürich.

|August 26, 2010

Summary

Magnetic resonance (MR) imaging is a non-invasive technique for evaluating joint issues. Four main MR imaging methods are used clinically, with new techniques showing future potential.

Area of Science:

Radiology
Medical Imaging
Orthopedics

Context:

Joint pathologies require accurate diagnostic methods.
Magnetic resonance (MR) imaging is a standard non-invasive technique for joint evaluation.
Current clinical practice utilizes four primary MR imaging techniques.

Purpose:

To outline the established and emerging Magnetic Resonance imaging techniques for joint pathology assessment.
To provide an overview of MR imaging's role in diagnosing joint conditions.

Summary:

Four main MR imaging techniques are routinely used: conventional, contrast-enhanced, direct MR arthrography, and indirect MR arthrography.
Newer MR imaging techniques are under investigation for future clinical applications.
These advanced methods aim to improve the diagnosis and management of joint diseases.

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In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints

In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints

Published on: December 9, 2025

Related Experiment Videos

Last Updated: Jun 9, 2026

Automated Joint Space Detection Improves Bone Segmentation Accuracy

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In vivo Macrophage Imaging Using MR Targeted Contrast Agent for Longitudinal Evaluation of Septic Arthritis

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In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints

In Vivo Imaging Uncovers the Migratory Behavior of Leukocytes within the Joints

Published on: December 9, 2025

Impact:

Enhanced diagnostic capabilities for joint pathologies.
Potential for improved patient outcomes through earlier and more accurate diagnosis.
Foundation for future research and development in musculoskeletal imaging.