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 Experiment Videos

Parallel transmission for ultrahigh-field imaging.

Francesco Padormo1, Arian Beqiri1, Joseph V Hajnal1,2

  • 1Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St Thomas' Hospital, London, UK.

NMR in Biomedicine
|May 21, 2015
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

Transmission Electron Microscopy01:15

Transmission Electron Microscopy

6.7K
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
6.7K
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

12.1K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
12.1K

You might also read

Related Articles

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

Sort by
Same author

Normative volumetric growth modeling of the whole fetal body, placenta, and amniotic fluid for three-dimensional T2-weighted magnetic resonance imaging.

Pediatric radiology·2026
Same author

Correction to: Ultra-low-field brain MRI morphometry: Test-retest reliability and correspondence to high-field MRI.

Imaging neuroscience (Cambridge, Mass.)·2026
Same author

Neonatal brain structure, cognitively stimulating parenting and behavioural outcomes in preschool children with congenital heart disease and controls.

Scientific reports·2026
Same author

Prenatal air pollution exposure is associated with altered neurodevelopmental outcomes in early childhood.

The Journal of physiology·2026
Same author

Associations between neonatal brain structure and neurodevelopmental outcomes following very preterm birth.

Journal of perinatology : official journal of the California Perinatal Association·2026
Same author

From Offline to Inline Without Pain: A Practical Framework for Translating Offline MR Reconstructions to Inline Deployment Using the Gadgetron Platform.

Magnetic resonance in medicine·2026

Ultrahigh-field MRI (magnetic resonance imaging) offers better images. Parallel transmission technology addresses transmit field non-uniformity, enabling more precise control for improved MRI applications.

Area of Science:

  • Medical Imaging
  • Biophysics
  • Radiofrequency Engineering

Background:

  • Ultrahigh-field MRI (7T and above) enhances imaging capabilities, offering improved speed, resolution, and signal-to-noise ratio.
  • Technical challenges, such as transmit field non-uniformity, hinder the full realization of ultrahigh-field MRI potential, leading to image artifacts and variable contrast.

Purpose of the Study:

  • To review the applications of parallel transmission in overcoming technical hurdles in ultrahigh-field MRI.
  • To explore how parallel transmission enables enhanced control over radiofrequency (RF) fields for improved image quality and safety.

Main Methods:

  • Discussion of parallel transmission techniques utilizing multiple independent transmission channels.
  • Review of strategies for designing subject-tailored RF pulses for uniform excitation and spatial selection.
Keywords:
B1 mappingRF shimmingSARparallel transmissionultrahigh-field MRI

Related Experiment Videos

  • Analysis of methods for controlling specific absorption rate (SAR) in ultrahigh-field MRI.

    • Main Results:

    • Parallel transmission offers advanced control over RF fields, addressing transmit field non-uniformity.
    • Techniques allow for the creation of more uniform transmit fields and tailored RF pulses.
    • Improved spatial and temporal control leads to enhanced image quality and safety.

    Conclusions:

    • Parallel transmission is crucial for unlocking the full potential of ultrahigh-field MRI.
    • It provides solutions for non-uniformity issues and enables precise RF field manipulation.
    • This technology facilitates improved imaging performance and safety in advanced MRI systems.