A New Method for Data Acquisition and Image Reconstruction in Parallel Magnetic Resonance Imaging

Author

Ahmed, H.M. ; Gabr, R.E. ; Kadah, Y.M. ; Youssef, A.M.

Author_Institution

Dept. of Biomed. Eng., Cairo Univ., Giza

fYear

2008

fDate

18-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

We propose a novel data acquisition and image reconstruction method for parallel magnetic resonance imaging (MRI). The proposed method improves the GRAPPA (Generalized Auto-calibrating Partially Parallel Acquisitions) method by simultaneously collecting data using the body coil in addition to localized surface coils. The body coil data is included in the GRAPPA reconstruction as an additional coil. The reconstructed body coil image shows greater uniformity over the field of view than the conventional sum-of-squares reconstruction that is conventionally used with GRAPPA. The body coil image can also be used to correct for spatial inhomogeneity in the sum-of-squares image. The proposed method is tested using numerical and real MRI phantom data.

Keywords

biomedical MRI; coils; data acquisition; image reconstruction; medical image processing; phantoms; GRAPPA method; MRI phantom data; data acquisition; generalized auto-calibrating partially parallel acquisition; image reconstruction; localized surface coil; parallel magnetic resonance imaging; reconstructed body coil image; sum-of-squares image; Biomedical engineering; Coils; Data acquisition; Image reconstruction; Magnetic resonance imaging; Niobium; Nonuniform electric fields; Radio frequency; Surface reconstruction; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering Conference, 2008. CIBEC 2008. Cairo International

Conference_Location

Cairo

Print_ISBN

978-1-4244-2694-2

Electronic_ISBN

978-1-4244-2695-9

Type

conf

DOI

10.1109/CIBEC.2008.4786092

Filename

4786092