Spin dephasing around randomly distributed vessels.
J Magn Reson
; 299: 12-20, 2019 02.
Article
en En
| MEDLINE
| ID: mdl-30529850
ABSTRACT
We analyze the gradient echo signal in the presence of blood vessel networks. Both, diffusion and susceptibility effects are analytically emphasized within the Bloch-Torrey equation. Solving this equation, we present the first exact description of the local magnetization around a single vessel. This allows us to deduce the gradient echo signal of parallel vessels randomly distributed in a plane, which is valid for arbitrary mean vessel diameters in the range of physiological relevant blood volume fractions. Thus, the results are potentially relevant for gradient echo measurements of blood vessel networks with arbitrary vessel size.
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Base de datos:
MEDLINE
Asunto principal:
Vasos Sanguíneos
/
Espectroscopía de Resonancia por Spin del Electrón
Tipo de estudio:
Clinical_trials
/
Prognostic_studies
Idioma:
En
Revista:
J Magn Reson
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
2019
Tipo del documento:
Article