Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

8.2K
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...
8.2K
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

168
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,...
168
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

103
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
103

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Ultrasonic repression of TRPA1-dependent astrocyte reactivity confers neuroprotection in models of Lewy body dementia.

Translational neurodegeneration·2026
Same author

Human Brain High-Resolution Diffusion MRI With Optimized, Slice-By-Slice, Zeroth and First Order <math><mrow><msub><mrow><mi>B</mi></mrow> <mrow><mn>0</mn></mrow></msub></mrow></math> Shimming in Head-Only High-Gradient MRI Systems.

Magnetic resonance in medicine·2026
Same author

Radio-frequency pulse design in local rotating frame in magnetic resonance imaging.

ArXiv·2026
Same author

Cooldown and Ramp Test of a Low-Cryogen, Lightweight, Head-Only 7T MRI Magnet.

IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee·2026
Same author

Harnessing theta-gamma coupled brainwaves using ultrasound for spinal astrocyte revitalization and sustained neuropathic pain relief in mice.

Nature communications·2025
Same author

Blood‒brain barrier opening with Golay-coded ultrasound to improve therapeutic consistency in glioblastoma models.

Drug delivery·2025

Related Experiment Video

Updated: Nov 1, 2025

Cardiac Magnetic Resonance Imaging at 7 Tesla
09:14

Cardiac Magnetic Resonance Imaging at 7 Tesla

Published on: January 6, 2019

11.8K

Therapeutic Quadrisected Annular Array for Improving Magnetic Resonance Compatibility.

Seoyun Chang, Hyunkyung Na, Minseok Koo

    IEEE Transactions on Bio-Medical Engineering
    |June 22, 2021
    PubMed
    Summary

    A novel quadrisected annular array improves magnetic resonance imaging (MRI) compatibility for focused ultrasound brain therapies. This design enhances acoustic beam control and maintains dynamic focusing capabilities for precise treatments.

    More Related Videos

    Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
    09:30

    Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

    Published on: December 18, 2016

    19.7K
    Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
    08:51

    Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

    Published on: February 19, 2021

    9.3K

    Related Experiment Videos

    Last Updated: Nov 1, 2025

    Cardiac Magnetic Resonance Imaging at 7 Tesla
    09:14

    Cardiac Magnetic Resonance Imaging at 7 Tesla

    Published on: January 6, 2019

    11.8K
    Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
    09:30

    Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

    Published on: December 18, 2016

    19.7K
    Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
    08:51

    Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

    Published on: February 19, 2021

    9.3K

    Area of Science:

    • Biomedical Engineering
    • Medical Imaging
    • Acoustics

    Background:

    • Focused ultrasound (FUS) is a promising brain therapeutic modality.
    • Current FUS transducers face limitations in MRI compatibility and precise multi-focal targeting.
    • Annular arrays offer adjustable focusing but can suffer from MRI-induced eddy currents.

    Purpose of the Study:

    • To introduce and evaluate a novel quadrisected annular array for improved MRI compatibility in focused ultrasound applications.
    • To address limitations of conventional annular arrays in terms of MRI interference and beam focusing.
    • To demonstrate the feasibility of the quadrisected design for precise brain tissue manipulation.

    Main Methods:

    • Fabrication of conventional and quadrisected annular arrays using PZT composite discs.
    • Assessment of MR compatibility using MRI phantom imaging (B0, B1 mapping, spin-echo).
    • Measurement of acoustic beam profiles with and without a macaque monkey skull.
    • Demonstration of blood-brain barrier (BBB) opening using the quadrisected transducer.

    Main Results:

    • Improved flip angle distortion by 20% in spin-echo MR imaging.
    • Recovery of acoustic beam distortions, restoring focal point accuracy.
    • Successful demonstration of blood-brain barrier opening in specific brain regions.

    Conclusions:

    • The quadrisected annular array design significantly enhances MR compatibility.
    • This design maintains dynamic focusing capabilities crucial for therapeutic applications.
    • The quadrisected annular transducer is a foundational element for advanced MR-compatible segmented arrays capable of generating multiple acoustic foci.