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From signal-based to comprehensive magnetic resonance imaging.


ABSTRACT: We present and evaluate a new insight into magnetic resonance imaging (MRI). It is based on the algebraic description of the magnetization during the transient response-including intrinsic magnetic resonance parameters such as longitudinal and transverse relaxation times (T1, T2) and proton density (PD) and experimental conditions such as radiofrequency field (B1) and constant/homogeneous magnetic field (B0) from associated scanners. We exploit the correspondence among three different elements: the signal evolution as a result of a repetitive sequence of blocks of radiofrequency excitation pulses and encoding gradients, the continuous Bloch equations and the mathematical description of a sequence as a linear system. This approach simultaneously provides, in a single measurement, all quantitative parameters of interest as well as associated system imperfections. Finally, we demonstrate the in-vivo applicability of the new concept on a clinical MRI scanner.

SUBMITTER: Kotek G 

PROVIDER: S-EPMC8390767 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature

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From signal-based to comprehensive magnetic resonance imaging.

Kotek Gyula G   Nunez-Gonzalez Laura L   Vogel Mika W MW   Krestin Gabriel P GP   Poot Dirk H J DHJ   Hernandez-Tamames Juan A JA  

Scientific reports 20210826 1


We present and evaluate a new insight into magnetic resonance imaging (MRI). It is based on the algebraic description of the magnetization during the transient response-including intrinsic magnetic resonance parameters such as longitudinal and transverse relaxation times (T<sub>1</sub>, T<sub>2</sub>) and proton density (PD) and experimental conditions such as radiofrequency field (B<sub>1</sub>) and constant/homogeneous magnetic field (B<sub>0</sub>) from associated scanners. We exploit the cor  ...[more]

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