| Zugriffsnummer | 50814 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Fast WASABI post-processing: access to rapid B0 and B1 correction in clinical routine for CEST MRI |
| Autor(in); Institution |
Papageorgakis, C.; Department of R&D Advanced Applications, Olea Medical, La Ciotat, FRANCE
Firippi, E.; Department of Research & Innovation, Olea Medical, La Ciotat, FRANCE
Gy, B.; Department of Research & Innovation, Olea Medical, La Ciotat, FRANCE
Boutelier, T.; Department of Research & Innovation, Olea Medical, La Ciotat, FRANCE
Khormi, I.; School of Health Sciences, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, AUSTRALIA; Hunter Medical Research Institute, Newcastle, AUSTRALIA
Al-Iedan, ; Hunter Medical Research Institute, Newcastle, AUSTRALIA; School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, AUSTRALIA
Lechner-Scott, J.; Hunter Medical Research Institute, Newcastle, AUSTRALIA; Department of Neurology, John Hunter Hospital, New Lambton Heights, Australia; School of Medicine and Public Health, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, AUSTRALIA
Ramadan, S.; School of Health Sciences, College of Health, Medicine and Wellbeing, University of Newcastle, Newcastle, AUSTRALIA; Hunter Medical Research Institute, Newcastle, AUSTRALIA
Liebig, P.; Siemens Healthcare GmbH, Erlangen, GERMANY
Zaiss, M.; Institute of Neuroradiology, University Clinic Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, GERMANY
Casagranda, S.; Department of R&D Advanced Applications, Olea Medical, La Ciotat, FRANCE
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| Quelle/Jahr | Magnetic Resonance Imaging: 102 (2023), 10, 203 - 211 |
| ISSN | 0730-725X (online) |
| DOI | |
| Verlag | Amsterdam: Elsevier |
| Freie Schlagworte | CEST ; WASABI ; field mapping ; post-processing ; APT1 ; NOE |
| Zusammenfassung | CEST MRI methods, such as APT and NOE imaging reveal biomarkers with significant diagnostic potential due to their ability to access molecular tissue information. Regardless of the technique used, CEST MRI data are affected by static magnetic B0 and radiofrequency B1 field inhomogeneities that degrade their contrast. For this reason, the correction of B0 field-induced artefacts is essential, whereas accounting for B1 field inhomogeneities have shown significant improvements in image readability. In a previous work, an MRI protocol called WASABI was presented, which can map simultaneously B0 and B1 field inhomogeneities, while maintaining the same sequence and readout types as used for CEST MRI. Despite the highly satisfactory quality of B0 and B1 maps computed from the WASABI data, the post-processing method is based on an exhaustive search of a four-parameter space and an additional four-parameter non-linear model fitting step. This leads to long post-processing times that are prohibitive in clinical practice. This work provides a new method for fast post-processing of WASABI data with outstanding acceleration of the parameter estimation procedure and without compromising its stability. The resulting computational acceleration makes the WASABI technique suitable for clinical use. The stability of the method is demonstrated on phantom data and clinical 3 Tesla in vivo data. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
Zitierung
Papageorgakis, C., Firippi, E., Gy, B., Boutelier, T., Khormi, I., Al-Iedan, Lechner-Scott, J., Ramadan, S., Liebig, P., Schünke, P., Zaiss, M., & Casagranda, S. (2023). Fast WASABI post-processing: access to rapid B0 and B1 correction in clinical routine for CEST MRI. Magnetic Resonance Imaging, 102(10), 203–211. https://doi.org/10.1016/j.mri.2023.06.001