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Sensors 2014, 14(2), 2182-2198; doi:10.3390/s140202182
Article

Optimal Configuration for Relaxation Times Estimation in Complex Spin Echo Imaging

1,* , 2
, 1
 and 1
Received: 27 November 2013; in revised form: 9 January 2014 / Accepted: 9 January 2014 / Published: 28 January 2014
(This article belongs to the Special Issue Magnetic Resonance Sensors)
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Abstract: Many pathologies can be identified by evaluating differences raised in the physical parameters of involved tissues. In a Magnetic Resonance Imaging (MRI) framework, spin-lattice T1 and spin-spin T2 relaxation time parameters play a major role in such an identification. In this manuscript, a theoretical study related to the evaluation of the achievable performances in the estimation of relaxation times in MRI is proposed. After a discussion about the considered acquisition model, an analysis on the ideal imaging acquisition parameters in the case of spin echo sequences, i.e., echo and repetition times, is conducted. In particular, the aim of the manuscript consists in providing an empirical rule for optimal imaging parameter identification with respect to the tissues under investigation. Theoretical results are validated on different datasets in order to show the effectiveness of the presented study and of the proposed methodology.
Keywords: Magnetic Resonance Imaging; complex decomposition; statistical signal processing; Cramer–Rao lower bounds; relaxation time estimation Magnetic Resonance Imaging; complex decomposition; statistical signal processing; Cramer–Rao lower bounds; relaxation time estimation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Baselice, F.; Ferraioli, G.; Grassia, A.; Pascazio, V. Optimal Configuration for Relaxation Times Estimation in Complex Spin Echo Imaging. Sensors 2014, 14, 2182-2198.

AMA Style

Baselice F, Ferraioli G, Grassia A, Pascazio V. Optimal Configuration for Relaxation Times Estimation in Complex Spin Echo Imaging. Sensors. 2014; 14(2):2182-2198.

Chicago/Turabian Style

Baselice, Fabio; Ferraioli, Giampaolo; Grassia, Alessandro; Pascazio, Vito. 2014. "Optimal Configuration for Relaxation Times Estimation in Complex Spin Echo Imaging." Sensors 14, no. 2: 2182-2198.



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