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Related Concept Videos

Magnetic Resonance Imaging01:24

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...
Brain Imaging01:14

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
Myasthenia Gravis: Diagnostic Tests01:15

Myasthenia Gravis: Diagnostic Tests

Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
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In gastric emptying studies, a meal's liquid and solid...

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Related Experiment Video

Updated: May 24, 2026

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
09:30

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Published on: December 18, 2016

Functional imaging in muscular diseases.

Erick Amarteifio, Armin Michael Nagel, Hans-Ulrich Kauczor

    Insights Into Imaging
    |February 21, 2012
    PubMed
    Summary

    Advanced imaging techniques like magnetic resonance imaging (MRI) and contrast-enhanced ultrasound (CEUS) significantly improve the diagnosis and understanding of muscle disorders, offering deeper insights into pathophysiology.

    Area of Science:

    • Medical Imaging
    • Musculoskeletal Disorders
    • Diagnostic Techniques

    Background:

    • Morphological and functional imaging advancements enhance muscular disorder diagnosis.
    • Whole-body MRI enables comprehensive body imaging for suspected myositis.
    • Biopsies for myositis can be more precisely targeted with improved imaging.

    Purpose of the Study:

    • To explore the utility of advanced imaging in diagnosing and understanding muscular disorders.
    • To highlight the benefits of whole-body MRI and functional MR methods.
    • To assess the role of contrast-enhanced ultrasound (CEUS) in myositis and peripheral arterial disease.

    Main Methods:

    • Whole-body magnetic resonance imaging (MRI) for comprehensive assessment.
    • Functional MR spectroscopy ((23)Na, (31)P, (1)H) for monitoring homeostasis and metabolism.

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  • Low mechanical index contrast-enhanced ultrasound (CEUS) for evaluating perfusion.

    • Main Results:

    • (23)Na MRI is valuable for diagnosing and following Na(+) channelopathies.
    • Functional MR methods visualize muscular physiology, including sodium homeostasis and metabolism.
    • CEUS detects inflammatory hyperperfusion in acute myositis and assesses arterial reserve in peripheral arterial disease.

    Conclusions:

    • Modern muscular imaging provides insights beyond unspecific changes like edema or atrophy.
    • Advanced techniques offer a deeper understanding of muscular pathophysiology.
    • MRI and CEUS represent significant progress in diagnosing and managing muscle conditions.