| Zugriffsnummer | 46133 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Frequency drift in MR spectroscopy: An 87-scanner 3T phantom study |
| Autor(in); Institution |
Hui, Steve C.N.; Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
Mikkelsen, Mark; Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
Zöllner, Helge J.; Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
Ahluwalia, Vishwadeep; GSU/GT Center for Advanced Brain Imaging, Georgia Institute of Technology, Atlanta, GA, USA
Alcauter, Sarael; Instituto de Neurobiología, Universidad Nacional Autónoma de México, Queretaro, MEXICO
Baltusis, Laima; Center for Cognitive and Neurobiological Imaging, Stanford University, Stanford, CA, USA
Barany, Deborah A.; Kinesiology, University of Georgia, Athens, GA, USA
Barlow, Laura R.; Department of Radiology, The University of British Columbia, Vancouver, BC, CANADA
Fillmer, Ariane; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
et al.,
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| Quelle/Jahr | ISMRM 29th annual meeting & exhibition: 15-20 May 2021; virtual conference:(2021), 3 S. |
| Artikelnummer | 0622 |
| Availability | [online only] |
| URL | |
| Verlag | Wiley / ISMRM |
| Konferenzangaben | 29th Annual Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM), Virtual Conference, 15-20 May 2021 |
| Zusammenfassung | This project aimed to examine the relationship between gradient-induced heating and field drift on a large sample of MRI scanners. A standardized phantom protocol was established, and spectroscopy was performed before and after running 10 minutes of echo-planar imaging (EPI). MRS data were acquired from 87 scanners. The frequency drift trace was extracted by modeling the water signal in each transient. Drift rates of up to 1.3 Hz/minute were seen before EPI, and 4 Hz/minute after. This dataset will allow sites to benchmark scanner drift, for consideration in planning research protocol order and examine the need for real-time field-frequency locking. |
| Themenbereich der Metrologie | Metrologie in der Medizin |
| Weitere Informationen | 130 Authors, not all individual authors are listed ; 102 Institutions, not all institutions are listed |
Zitierung
Hui, S. C., Mikkelsen, M., Zöllner, H. J., Ahluwalia, V., Alcauter, S., Baltusis, L., Barany, D. A., Barlow, L. R., Fillmer, A., & et al. (2021). Frequency drift in MR spectroscopy: An 87-scanner 3T phantom study. 29th Annual Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM), Virtual Conference, 15-20 May 2021.