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

Angiographic imaging with 2D RF pulses

M T Alley1, J M Pauly, F G Sommer

  • 1Department of Radiology, Stanford University, California 94305-5488, USA.

Magnetic Resonance in Medicine
|February 1, 1997
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

Hemodynamic assessment of celiaco-mesenteric anastomosis in patients with pancreaticoduodenal artery aneurysm concomitant with celiac artery occlusion using flow-sensitive four-dimensional magnetic resonance imaging.

European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery·2013
Same author

Prediction of glycosaminoglycan content in human cartilage by age, T1ρ and T2 MRI.

Osteoarthritis and cartilage·2010
Same author

Complete intracranial arterial and venous blood flow evaluation with 4D flow MR imaging.

AJNR. American journal of neuroradiology·2008
Same author

Noise performance of a precision pulsed electromagnet power supply for magnetic resonance imaging.

IEEE transactions on medical imaging·2008
Same author

Visualization of hemodynamics in a silicon aneurysm model using time-resolved, 3D, phase-contrast MRI.

AJNR. American journal of neuroradiology·2006
Same author

Performance of a static-anode/flat-panel x-ray fluoroscopy system in a diagnostic strength magnetic field: a truly hybrid x-ray/MR imaging system.

Medical physics·2005

This study introduces a novel 2D excitation technique for Magnetic Resonance Angiography (MRA) that enhances vessel visualization and reduces artifacts in small field-of-view imaging. The method improves clarity and detail in MRA scans.

Area of Science:

  • Medical Imaging
  • Radiology
  • Biophysics

Background:

  • Magnetic Resonance Angiography (MRA) is crucial for visualizing blood vessels.
  • Improving image quality and reducing artifacts in MRA remains an active area of research.
  • Small field-of-view imaging presents challenges in MRA, including aliasing artifacts.

Purpose of the Study:

  • To develop and evaluate a novel 2D excitation technique for MRA.
  • To enhance inflow enhancement and improve small field-of-view MRA imaging.
  • To reduce aliasing artifacts in MRA.

Main Methods:

  • Utilized radiofrequency (RF) pulses with limited spatial excitation in two orthogonal directions.
  • Employed an echo-planar k-space trajectory.
  • Generated a sinc-modulated RF waveform to create a rectangular excitation profile.

Related Experiment Videos

Main Results:

  • In vivo MRA images demonstrated clearer delineation of vessels using the 2D excitation.
  • Significant reduction in aliasing artifacts was observed in small field-of-view MRA.
  • Improved inflow enhancement was noted, aiding in vessel visualization.

Conclusions:

  • The developed 2D excitation technique offers superior vessel delineation in MRA.
  • This method effectively reduces aliasing artifacts, enhancing the diagnostic utility of small field-of-view MRA.
  • The technique shows promise for improving MRA imaging quality and clinical application.