3D time-resolved vessel-selective angiography based on pseudo-continuous arterial spin labeling

Magnetic Resonance Imaging
Thomas LindnerMichael Helle

Abstract

Angiographic imaging is an important diagnostic tool for the assessment of the intracranial arterial status. Using arterial spin labeling (ASL) techniques, it is possible to visualize the arteries without the administration of exogenous contrast agents. Moreover, modifications of the labeling method allow for the visualization of single arterial trees. In this study, an approach is presented for time-resolved MR angiography based on superselective ASL and keyhole accelerated image acquisition in order to selectively visualize individual cerebral arteries in a clinically acceptable scan time. Keyhole percentage as well as the flip angle of the acquisition sequence was optimized in numerical simulations. Subsequently, the method was validated in healthy volunteers. As a result, image acquisition in 5 minutes with a temporal resolution of 100 ms and spatial resolution below 1 mm was achieved.

References

Jun 1, 1986·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·W T DixonS Rossnick
May 8, 1999·Journal of Magnetic Resonance Imaging : JMRI·J P WansapuraW S Ball
Oct 31, 2003·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·M MarklN J Pelc
Oct 31, 2007·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Michael LustigJohn M Pauly
Oct 31, 2007·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Wen-Chau WuJiongjiong Wang
Jun 21, 2008·Radiology·Mitsue Miyazaki, Vivian S Lee
Nov 26, 2008·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Weiying DaiDavid C Alsop
May 3, 2011·The American Journal of Medicine·Helle Mathiasen
Mar 26, 2013·Journal of Magnetic Resonance Imaging : JMRI·Michael HelleOlav Jansen
Oct 30, 2013·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Daniel Kopeinigg, Roland Bammer
Jan 8, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Wouter M TeeuwisseMatthias J P van Osch

❮ Previous
Next ❯

Citations

Jun 27, 2015·European Journal of Radiology·Ulf Jensen-KonderingMichael Helle
Nov 24, 2017·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·Peter JezzardThomas W Okell
Jan 26, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Makoto ObaraMarc Van Cauteren

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aneurysm

Aneurysms are outward distensions or bulges that occurs in a weakened wall of blood vessels. Discover the latest research on aneurysms here.

Related Papers

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Daniel Kopeinigg, Roland Bammer
Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism
Thomas W OkellPeter Jezzard
© 2021 Meta ULC. All rights reserved