4D flow MRI in abdominal vessels: prospective comparison of k-t accelerated free breathing acquisition to standard respiratory navigator gated acquisition
| Autor: | Bane, Octavia, Stocker, Daniel, Kennedy, Paul, Hectors, Stefanie J, Bollache, Emilie, Schnell, Susanne, Schiano, Thomas, Thung, Swan, Fischman, Aaron, Markl, Michael, Taouli, Bachir |
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| Přispěvatelé: | Bollache, Emilie, Icahn School of Medicine at Mount Sinai [New York] (MSSM), Laboratoire d'Imagerie Biomédicale (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Northwestern University [Evanston], Universität Greifswald - University of Greifswald, University of Zurich, Bane, Octavia |
| Rok vydání: | 2022 |
| Předmět: |
1000 Multidisciplinary
Imaging Three-Dimensional [SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/Imaging Multidisciplinary 10042 Clinic for Diagnostic and Interventional Radiology [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging Abdomen Humans Reproducibility of Results 610 Medicine & health Middle Aged Image Enhancement Magnetic Resonance Imaging |
| Zdroj: | Scientific Reports Scientific Reports, 2022, 12 (1), pp.19886. ⟨10.1038/s41598-022-23864-9⟩ |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-022-23864-9 |
| Popis: | Volumetric phase-contrast magnetic resonance imaging with three-dimensional velocity encoding (4D flow MRI) has shown utility as a non-invasive tool to examine altered blood flow in chronic liver disease. Novel 4D flow MRI pulse sequences with spatio-temporal acceleration can mitigate the long acquisition times of standard 4D flow MRI, which are an impediment to clinical adoption. The purpose of our study was to demonstrate feasibility of a free-breathing, spatio-temporal (k−t) accelerated 4D flow MRI acquisition for flow quantification in abdominal vessels and to compare its image quality, flow quantification and inter-observer reproducibility with a standard respiratory navigator-gated 4D flow MRI acquisition. Ten prospectively enrolled patients (M/F: 7/3, mean age = 58y) with suspected portal hypertension underwent both 4D flow MRI acquisitions. The k−t accelerated acquisition was approximately three times faster (3:11 min ± 0:12 min/9:17 min ± 1:41 min, p |
| Databáze: | OpenAIRE |
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