ArticleNMR in biomedicine2020
Pseudo-spiral sampling and compressed sensing reconstruction provides flexibility of temporal resolution in accelerated aortic 4D flow MRI: A comparison with k-t principal component analysis.
Article in NMR in biomedicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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21 citing papers in PubMed, 31 citations in OpenAlex.
- Parameter estimation in blood flow models from highly undersampled k-space magnetic resonance imaging data.Biomechanics and modeling in mechanobiology · 2026Article
- Black-blood dynamic contrast-enhanced MRI of abdominal aortic aneurysms.Magma (New York, N.Y.) · 2026Article
- Reducing Noise Induced by Cardiac Pulsatility in Brain Maps of RNMR in biomedicine · 2026Article
- Simultaneous Volumetric T1 and T2 Mapping With Blood- and Fat-Suppression in Abdominal Aortic Aneurysms.Magnetic resonance in medicine · 2026Article
- K-CC-MoCo: A Fast k-Space-Based Respiratory Motion Correction for Highly Accelerated First-Pass Perfusion Cardiovascular MR.Magnetic resonance in medicine · 2026Article
- Automated identification, hemodynamic visualisation and quantification of abdominal aortic aneurysms with 4D flow magnetic resonance imaging.Quantitative imaging in medicine and surgery · 2026Article
- Aortic Function in a Longitudinal 4D Flow MRI Study in Marfan Syndrome Patients Receiving Resveratrol.Journal of magnetic resonance imaging : JMRI · 2025Article
- 3D Cine Magnetic Resonance Imaging of Respiratory Motion in Mechanically Ventilated Mice and Rats.Journal of visualized experiments : JoVE · 2025Article
- A correction for modeling radial, spiral, and PROPELLER dynamic contrast-enhanced data: Time-averaged extended Tofts.Magnetic resonance in medicine · 2025Article
- Third trimester fetal 4D flow MRI with motion correction.Magnetic resonance in medicine · 2025Article
- The CALIPR framework for highly accelerated myelin water imaging with improved precision and sensitivity.Science advances · 2023Article
- Comparison of 2D and 4D Flow MRI in Neonates Without General Anesthesia.Journal of magnetic resonance imaging : JMRI · 2023Article
- Article
- Whole-Heart 4D Flow MRI for Evaluation of Normal and Regurgitant Valvular Flow: A Quantitative Comparison Between Pseudo-Spiral Sampling and EPI Readout.Journal of magnetic resonance imaging : JMRI · 2022Article
- Influence of Spatial Resolution and Compressed SENSE Acceleration Factor on Flow Quantification with 4D Flow MRI at 3 Tesla.Tomography (Ann Arbor, Mich.) · 2022Article
- Retrospective Camera-Based Respiratory Gating in Clinical Whole-Heart 4D Flow MRI.Journal of magnetic resonance imaging : JMRI · 2021Article
- Highly accelerated aortic 4D flow MRI using compressed sensing: Performance at different acceleration factors in patients with aortic disease.Magnetic resonance in medicine · 2021Article
- Coronary Flow Assessment Using Accelerated 4D Flow MRI With Respiratory Motion Correction.Frontiers in bioengineering and biotechnology · 2021Article
- High Spatiotemporal Resolution 4D Flow MRI of Intracranial Aneurysms at 7T in 10 Minutes.AJNR. American journal of neuroradiology · 2020Article
- Pseudo-spiral sampling and compressed sensing reconstruction provides flexibility of temporal resolution in accelerated aortic 4D flow MRI: A comparison with k-t principal component analysis.NMR in biomedicine · 2020Article
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Authors and funding
7 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
introductionTime-resolved three-dimensional phase contrast MRI (4D flow) of aortic blood flow requires acceleration to reduce scan time. Two established techniques for highly accelerated 4D flow MRI are k-t principal component analysis (k-t PCA) and compressed sensing (CS), which employ either regular or random k-space undersampling. The goal of this study was to gain insights into the quantitative differences between k-t PCA- and CS-derived aortic blood flow, especially for high temporal resolution CS 4D flow MRI.
methodsThe scan protocol consisted of both k-t PCA and CS accelerated 4D flow MRI, as well as a 2D flow reference scan through the ascending aorta acquired in 15 subjects. 4D flow scans were accelerated with factor R = 8. For CS accelerated scans, we used a pseudo-spiral Cartesian sampling scheme, which could additionally be reconstructed at higher temporal resolution, resulting in R = 13. 4D flow data were compared with the 2D flow scan in terms of flow, peak flow and stroke volume. A 3D peak systolic voxel-wise velocity and wall shear stress (WSS) comparison between k-t PCA and CS 4D flow was also performed.
resultsThe mean difference in flow/peak flow/stroke volume between the 2D flow scan and the 4D flow CS with R = 8 and R = 13 was 4.2%/9.1%/3.0% and 5.3%/7.1%/1.9%, respectively, whereas for k-t PCA with R = 8 the difference was 9.7%/25.8%/10.4%. In the voxel-by-voxel 4D flow comparison we found 13.6% and 3.5% lower velocity and WSS values of k-t PCA compared with CS with R = 8, and 15.9% and 5.5% lower velocity and WSS values of k-t PCA compared with CS with R = 13.
conclusionPseudo-spiral accelerated 4D flow acquisitions in combination with CS reconstruction provides a flexible choice of temporal resolution. We showed that our proposed strategy achieves better agreement in flow values with 2D reference scans compared with using k-t PCA accelerated acquisitions.
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