DocumentCode :
2718885
Title :
Cramér Rao bound analysis of joint B1/T1 mapping methods in MRI
Author :
Funai, Amanda ; Fessler, Jeffrey A.
Author_Institution :
EECS Dept., Univ. of Michigan, Ann Arbor, MI, USA
fYear :
2010
fDate :
14-17 April 2010
Firstpage :
712
Lastpage :
715
Abstract :
In MRI, RF field inhomogeneity (B1) and relaxation effects (T1) significantly affect both B1 and T1 mapping. Simultaneous joint estimation of both B1 and T1 has the potential to greatly improve both B1 and T1 estimation. This paper analyzes the Cramér Rao Bound for joint B1, T1 estimation using common B1 and T1 pulse sequences. This analysis aids choosing pulse sequences and parameters given desired levels of B1 and T1 accuracy and the inherent trade off between the two mappings.
Keywords :
biomedical MRI; boundary-value problems; estimation theory; Cramer Rao bound analysis; MRI; RF field inhomogeneity; joint B1/T1 mapping; joint estimation; pulse sequences; relaxation effects; Calibration; Coils; Cramer-Rao bounds; Image sequence analysis; Magnetic analysis; Magnetic resonance imaging; RF signals; Radio frequency; Signal design; Tellurium; B1 mapping; Cramer Rao Bound; Magnetic resonance imaging; T1 mapping;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Imaging: From Nano to Macro, 2010 IEEE International Symposium on
Conference_Location :
Rotterdam
ISSN :
1945-7928
Print_ISBN :
978-1-4244-4125-9
Electronic_ISBN :
1945-7928
Type :
conf
DOI :
10.1109/ISBI.2010.5490075
Filename :
5490075
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2718885
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