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

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...
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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,...
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
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).

You might also read

Related Articles

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

Sort by
Same author

Real-time electric-field neuronavigation on realistic head models for conventional and multi-locus TMS.

Brain stimulation·2026
Same author

Conductivity Deviations as Virtual Sources in Magnetoencephalography.

Brain topography·2026
Same author

Addressing population and neurobiological diversity in TMS-EEG biomarker research.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
Same author

TMS timed to interictal epileptiform discharges.

bioRxiv : the preprint server for biology·2026
Same author

Clinical utility and prospective of TMS-EEG: Updated review from an international expert group.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
Same author

Distinct cortical excitability and connectivity profiles within the human SMA complex.

bioRxiv : the preprint server for biology·2026

Related Experiment Video

Updated: Jun 17, 2026

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging
11:43

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging

Published on: December 30, 2016

Polarization encoding as a novel approach to MRI.

Jaakko O Nieminen1, Martin Burghoff, Lutz Trahms

  • 1Helsinki University of Technology, Department of Biomedical Engineering and Computational Science, P.O. Box 2200, FI-02015 TKK, Finland. jaakko.nieminen@tkk.fi

Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

Researchers introduce polarization encoding, a novel method for ultra-low field magnetic resonance imaging (ULF MRI). This technique uses varied polarizing fields to gain additional spatial information from prepolarized samples, enhancing ULF MRI capabilities.

More Related Videos

Hyperpolarized Xenon for NMR and MRI Applications
16:20

Hyperpolarized Xenon for NMR and MRI Applications

Published on: September 6, 2012

Related Experiment Videos

Last Updated: Jun 17, 2026

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging
11:43

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging

Published on: December 30, 2016

Hyperpolarized Xenon for NMR and MRI Applications
16:20

Hyperpolarized Xenon for NMR and MRI Applications

Published on: September 6, 2012

Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Biophysics

Background:

  • Traditional MRI relies on Fourier encoding, radio frequency encoding, and sensor array sensitivity for spatial signal origin.
  • Ultra-low field MRI (ULF MRI) detects signals from prepolarized samples using superconducting quantum interference device (SQUID) sensors at microtesla fields.
  • Prepolarization in ULF MRI is achieved using a 10-100 mT field before signal acquisition.

Purpose of the Study:

  • To introduce a novel spatial encoding method for MRI, termed polarization encoding.
  • To adapt this method for ultra-low field MRI (ULF MRI) applications.
  • To explore its potential utility in imaging DC magnetization profiles.

Main Methods:

  • Utilizing sets of polarizing fields with various spatial profiles.
  • Applying these fields to prepolarize samples in a controlled manner.
  • Tailoring the method for ULF MRI detection with SQUID sensor arrays.

Main Results:

  • Demonstrated a new approach to spatial encoding in MRI.
  • Developed a method specifically designed for ULF MRI.
  • Showcased the potential for gaining additional sample information through varied prepolarizing fields.

Conclusions:

  • Polarization encoding offers a new paradigm for spatial information retrieval in MRI.
  • The method is particularly suited for ULF MRI and may extend to other DC magnetization imaging modalities.
  • This technique enhances the capabilities of ULF MRI by providing novel encoding strategies.