An improved MRI method for dynamic contrast-enhanced imaging of tumors

Author

Ji, Xiuquan ; Ma, Jingfei ; Aref, Michael ; Wiener, E. ; Liang, Zhi-Pei

Author_Institution

Illinois Univ., Urbana, IL, USA

Volume

1

fYear

2003

fDate

17-21 Sept. 2003

Firstpage

478

Abstract

Acquiring high-resolution dynamic images is desirable but often technically challenging in contrast-enhanced tumor imaging due to the limited data acquisition speed. This paper presents an improved Magnetic Resonance Imaging (MRI) method for dynamic contrast-enhanced imaging of tumors, which involves a new data acquisition scheme and a reconstruction algorithm using a generalized-series model. Simulation results using phantom and real tumor MRI imaging data show that the method can provide significant improvements in spatiotemporal resolution over previous methods such as Keyhole.

Keywords

biomagnetism; biomedical MRI; image reconstruction; medical image processing; patient diagnosis; tumours; contrast-enhanced tumor imaging; data acquisition speed; dynamic contrast-enhanced imaging; generalized-series model; high-resolution dynamic images; improved MRI method; magnetic resonance imaging method; phantom; reconstruction algorithm; tumor MRI imaging; tumors; Cancer; Data acquisition; High-resolution imaging; Image reconstruction; Image resolution; Kinetic theory; Magnetic resonance imaging; Neoplasms; Propellers; Strips;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7789-3

Type

conf

DOI

10.1109/IEMBS.2003.1279733

Filename

1279733