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

Rapid scan magnetic resonance angiography.

C L Dumoulin1, S P Souza, H R Hart

  • 1General Electric Corporate Research and Development Center, Schenectady, New York 12301.

Magnetic Resonance in Medicine
|September 1, 1987
PubMed
Summary

This study introduces a new method for creating projection angiograms using magnetic resonance imaging. It offers quantitative flow measurements and faster scan times without needing cardiac synchronization.

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

Molecular and antigenic characterization of bovine Coronavirus circulating in Argentinean cattle during 1994-2010.

Veterinary microbiology·2015
Same author

Genetic diversity and population structure of Synthesium pontoporiae (Digenea, Brachycladiidae) linked to its definitive host stocks, the endangered Franciscana dolphin, Pontoporia blainvillei (Pontoporiidae) off the coast of Brazil and Argentina.

Journal of helminthology·2015
Same author

Bovine rotavirus in turkeys with enteritis.

Avian diseases·2012
Same author

Molecular epidemiology of avian infectious bronchitis in Brazil from 2007 to 2008 in breeders, broilers, and layers.

Avian diseases·2010
Same author

Size and albedo of Kuiper belt object 55636 from a stellar occultation.

Nature·2010
Same author

Charon's radius and atmospheric constraints from observations of a stellar occultation.

Nature·2006

Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Biomedical Engineering
  • Medical Imaging

Background:

  • Traditional angiography methods can be invasive and may require cardiac synchronization.
  • Quantitative flow measurement in blood vessels is crucial for diagnosing various cardiovascular conditions.
  • Existing MRI techniques for flow imaging often face limitations in speed and artifact suppression.

Purpose of the Study:

  • To develop a novel projection angiography technique using phase shifts in transverse spin magnetization.
  • To enable quantitative assessment of laminar and pulsatile blood flow.
  • To improve imaging speed and reduce artifacts compared to conventional methods.

Main Methods:

  • Utilizing the phase changes of transverse spin magnetization induced by macroscopic spin motion.
  • Applying an applied magnetic field gradient to generate projection angiograms.
  • Employing short repetition time (TR) and a high number of excitations for enhanced signal acquisition.

Main Results:

  • The developed method successfully generates projection angiograms.
  • Quantitative measurements of laminar and pulsatile flow were achieved.
  • Improved suppression of stationary tissue and patient motion artifacts was observed.
  • Significant reduction in overall scan time was obtained.

Conclusions:

  • This phase-contrast MRI technique provides a non-invasive, quantitative method for assessing blood flow.
  • The approach eliminates the need for cardiac synchronization, simplifying data acquisition.
  • The method offers superior image quality and efficiency compared to traditional cardiac-gated studies.

Related Experiment Videos