Noise Analysis for Multi-slice Radio Frequency Current Density Imaging

Radio frequency current density imaging (RF-CDI) is an imaging technique that measures current density distribution at the Larmor frequency utilizing magnetic resonance imaging (MRI). The multi-slice RF-CDI sequence has extended the ability of RF-CDI to image multiple slices and thus has enhanced it...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	2006 International Conference of the IEEE Engineering in Medicine and Biology Society 2006, Vol.2006, p.1907-1910
Hauptverfasser:	Wang, D., DeMonte, T.P., Joy, M.L., Nachman, A.I.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biomedical imaging Biomedical measurements Computational modeling Current density Finite difference methods Image analysis Image Interpretation, Computer-Assisted - methods Imaging, Three-Dimensional - methods Magnetic noise Magnetic resonance imaging Magnetic Resonance Imaging - instrumentation Magnetic Resonance Imaging - methods Phantoms, Imaging Plethysmography, Impedance - methods Radio frequency Radio Waves Reproducibility of Results Sensitivity and Specificity Time domain analysis
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Radio frequency current density imaging (RF-CDI) is an imaging technique that measures current density distribution at the Larmor frequency utilizing magnetic resonance imaging (MRI). The multi-slice RF-CDI sequence has extended the ability of RF-CDI to image multiple slices and thus has enhanced its capacity for biomedical applications. In this paper, the influence of MRI random noise on the sensitivity of multi-slice RF-CDI measurement is studied. The formula of current noise is derived, which is verified by both simulation and phantom experiments. A 3-D finite-difference time-domain (FDTD) model is employed to compute the electromagnetic fields in the simulation
ISSN:	1557-170X
DOI:	10.1109/IEMBS.2006.259255