Model for B1 Imaging in MRI Using the Rotating RF Field
Joint Authors
Weber, Ewald
Trakic, Adnan
Jin, Jin
Crozier, Stuart
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-19
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Conventionally, magnetic resonance imaging (MRI) is performed by pulsing gradient coils, which invariably leads to strong acoustic noise, patient safety concerns due to induced currents, and costly power/space requirements.
This modeling study investigates a new silent, gradient coil-free MR imaging method, in which a radiofrequency (RF) coil and its nonuniform field (B1+) are mechanically rotated about the patient.
The advantage of the rotating B1+ field is that, for the first time, it provides a large number of degrees of freedom to aid a successful B1+ image encoding process.
The mathematical modeling was performed using flip angle modulation as part of a finite-difference-based Bloch equation solver.
Preliminary results suggest that representative MR images with intensity deviations of <5% from the original image can be obtained using rotating RF field approach.
This method may open up new avenues towards anatomical and functional imaging in medicine.
American Psychological Association (APA)
Trakic, Adnan& Jin, Jin& Weber, Ewald& Crozier, Stuart. 2014. Model for B1 Imaging in MRI Using the Rotating RF Field. Computational and Mathematical Methods in Medicine،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-473415
Modern Language Association (MLA)
Trakic, Adnan…[et al.]. Model for B1 Imaging in MRI Using the Rotating RF Field. Computational and Mathematical Methods in Medicine No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-473415
American Medical Association (AMA)
Trakic, Adnan& Jin, Jin& Weber, Ewald& Crozier, Stuart. Model for B1 Imaging in MRI Using the Rotating RF Field. Computational and Mathematical Methods in Medicine. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-473415
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-473415