4D flow MRI

@article{Markl20124DFM,
  title={4D flow MRI},
  author={Michael Markl and Alex Frydrychowicz and Sebastian Kozerke and Mike Hope and Oliver Wieben},
  journal={Journal of Magnetic Resonance Imaging},
  year={2012},
  volume={36}
}
Traditionally, magnetic resonance imaging (MRI) of flow using phase contrast (PC) methods is accomplished using methods that resolve single‐directional flow in two spatial dimensions (2D) of an individual slice. More recently, three‐dimensional (3D) spatial encoding combined with three‐directional velocity‐encoded phase contrast MRI (here termed 4D flow MRI) has drawn increased attention. 4D flow MRI offers the ability to measure and to visualize the temporal evolution of complex blood flow… 
Advanced flow MRI: emerging techniques and applications.
Hemodynamic Aspects of Vessel Wall Imaging: 4D Flow
TLDR
The methods used for 4D flow MRI acquisition, post-processing, and data analysis are described to describe the methods used in the assessment of hemodynamic aspects of vessel wall imaging in the head, neck, thorax, and peripheral vessels.
Abdominal applications of quantitative 4D flow MRI
TLDR
Technical aspects of the implementation of abdominal 4D flow MRI ranging from patient preparation and acquisition protocol over post-processing and quality control to final data analysis are discussed.
Abdominal Applications of 4D Flow MRI.
TLDR
Results of recent studies indicate that 4D flow MRI improves understanding of altered hemodynamics in patients with abdominal disease and may be useful for monitoring therapeutic response.
Sketch-based Registration of 3D Cine MRI to 4D flow MRI
TLDR
This paper proposes two sketch-based methods for effective localization of 4D Flow MRI to 3D cine MRI registration and evaluates these methods and compare them with other localization methods.
4D Flow Imaging: Current Status to Future Clinical Applications
TLDR
This review provides an introduction to the methodological aspects of 4D flow MRI to assess vascular hemodynamics and describes its potential for the assessment and understanding of altered hemodynamics in the presence of cardiovascular disease.
Preclinical 4D-flow magnetic resonance phase contrast imaging of the murine aortic arch
TLDR
An imaging protocol is provided that offers the possibility to acquire the aortic arch at sufficiently high resolution in less than one hour and allows the combination of the flow assessment with other multifunctional imaging protocols.
Four-dimensional flow magnetic resonance imaging in cirrhosis.
  • Z. Stankovic
  • Medicine, Biology
    World journal of gastroenterology
  • 2016
TLDR
The purpose of this review article is to broaden the understanding of 4D flow MRI for the assessment of liver hemodynamics by providing insights into acquisition, data analysis, visualization and quantification.
A Survey of Cardiac 4D PC‐MRI Data Processing
TLDR
This work focuses on the aorta and provides an overview of data measurement and pre‐processing, as well as current visualization and quantification methods, to improve the diagnosis, prognosis and therapy planning of cardiovascular diseases.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 187 REFERENCES
Particle trace visualization of intracardiac flow using time‐resolved 3D phase contrast MRI
TLDR
A temporally resolved 3D phase contrast technique was used to derive data describing the intracardiac velocity fields in normal volunteers, correcting for phase shifts caused by eddy currents and concomitant gradient fields, with improvement in the accuracy of subsequent flow visualizations.
Comprehensive 4D velocity mapping of the heart and great vessels by cardiovascular magnetic resonance
  • M. Markl, P. Kilner, T. Ebbers
  • Medicine, Biology
    Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance
  • 2011
TLDR
Multidirectional, 3D cine velocity acquisitions are contributing to the understanding of normal and pathologically altered blood flow features, and offers the potential for retrospective quantification of flow and other hemodynamic parameters.
4D phase contrast MRI at 3 T: Effect of standard and blood‐pool contrast agents on SNR, PC‐MRA, and blood flow visualization
TLDR
In a group of 30 healthy volunteers, the influence of different contrast agents on vascular signal‐to‐noise ratio, PC‐MRA quality, and subsequent three‐dimensional stream‐line visualization in the thoracic aorta was determined.
Highly k‐t‐space–accelerated phase‐contrast MRI
TLDR
Quantitative comparisons of blood flow velocities and pixel‐wise correlation analysis of velOCities highlight the potential of PEAK‐GRAPPA for highly accelerated dynamic phase‐contrast velocity mapping.
Phase contrast cine magnetic resonance imaging.
TLDR
Phase contrast cine magnetic resonance imaging combines the flow-dependent contrast of phase contrast MRI with the ability of cardiac cine imaging to produce images throughout the cardiac cycle, helpful in the diagnosis of aortic dissections, in the study of flow distributions in large vessels such as pulmonary arteries, and in the evaluation of complex anatomical variants.
Visualizing three‐dimensional flow with simulated streamlines and three‐dimensional phase‐contrast MR imaging
TLDR
Simulation of streamlines reveals helical flow patterns in aneurysms, and multiple streamlines seeded in the common carotid artery reveal branch filling‐time relationships and slow filling of theCarotid bulb.
Quantitative 2D and 3D phase contrast MRI: Optimized analysis of blood flow and vessel wall parameters
TLDR
Initial results in a patient with atherosclerosis suggest the potential of the CINE phase contrast (PC)‐MRI quantification method for understanding the formation and progression of cardiovascular diseases.
Renal arteries: isotropic, high-spatial-resolution, unenhanced MR angiography with three-dimensional radial phase contrast.
TLDR
Isotropic, high-spatial-resolution, unenhanced MR angiographic techniques for anatomic assessment of the renal arteries is feasible with 3D radial undersampling with phase-contrast VIPR.
Time‐resolved 3D quantitative flow MRI of the major intracranial vessels: Initial experience and comparative evaluation at 1.5T and 3.0T in combination with parallel imaging
TLDR
A time‐resolved, 3D phase‐contrast MRI method using parallel imaging was implemented to measure blood flow in three dimensions at multiple instances over the cardiac cycle and provided features that have not been reported previously for the intracranial vasculature.
Visualizing blood flow patterns using streamlines, arrows, and particle paths
TLDR
The association between specific abnormal flow patterns and development of atherosclerosis suggests that particle paths can be used to assess risk of plaque formation and progression, as well as to evaluate flow dynamics and vascular patency before and after vascular interventions.
...
1
2
3
4
5
...