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

A modified quadrupole gradient set for use in high resolution MRI tagging

W G O'Dell1, J S Schoeniger, S J Blackband

  • 1Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205.

Magnetic Resonance in Medicine
|August 1, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Coronary artery calcium and cardiovascular disease prediction by scanner type: the multi-ethnic study of atherosclerosis.

Clinical radiology·2022
Same author

Deformable Known Component Model-Based Reconstruction for Coronary CT Angiography.

Proceedings of SPIE--the International Society for Optical Engineering·2021
Same author

Oscillating and pulsed gradient diffusion magnetic resonance microscopy over an extended b-value range: implications for the characterization of tissue microstructure.

Magnetic resonance in medicine·2012
Same author

Elliptical trough reflector for the collection of light from linear sources.

Applied optics·2008
Same author

Hollow cylindrical waveguides for use as evanescent fluorescence-based sensors: effect of numerical aperture on collected signal.

Applied optics·2008
Same author

Magnetic resonance microscopy and immunohistochemistry of the CNS of the mutant SOD murine model of ALS reveals widespread neural deficits.

Neuromolecular medicine·2007

A novel gradient set enhances Magnetic Resonance Imaging (MRI) for small samples. This specialized coil achieves high resolution imaging, ideal for detailed studies like canine heart tagging.

Area of Science:

  • Medical Imaging
  • Biophysics
  • Engineering

Background:

  • High-resolution Magnetic Resonance Imaging (MRI) is crucial for detailed analysis of small biological samples.
  • Existing MRI systems may require specialized hardware to achieve the necessary image quality for specific applications.

Purpose of the Study:

  • To construct and evaluate a specialized gradient set for high-resolution MRI of small samples.
  • To assess the performance of the gradient set within a clinical 1.5 T MRI scanner.

Main Methods:

  • A custom gradient set with a Cos(2 theta) current distribution was designed and built.
  • The gradient set was integrated into a clinical Signa 1.5 T scanner, utilizing existing gradient amplifiers.
  • Gradient field strengths, slew rate, ramp time, and field distortions were measured.

Related Experiment Videos

Main Results:

  • The gradient coils achieved field strengths of 11.3, 4.7, and 15.2 G/cm for X, Y, and Z axes, respectively.
  • A slew rate of 20 G/cm/ms and a usable ramp time of 150 microseconds were recorded.
  • Field distortions remained below 2% within the central 8 cm of the scanner bore.

Conclusions:

  • The constructed gradient set is suitable for high-resolution MRI of small samples.
  • The system's performance, particularly low field distortion, makes it ideal for applications like high-resolution tagging of isolated canine hearts.