Estimation of intravoxel incoherent motion (IVIM) parameters in vertebral bone marrow: a comparative study of five algorithms.
MAGMA
; 36(5): 837-847, 2023 Oct.
Article
en En
| MEDLINE
| ID: mdl-36715885
ABSTRACT
OBJECTIVES:
To access the performances of different algorithms for quantification of Intravoxel incoherent motion (IVIM) parameters D, f, [Formula see text] in Vertebral Bone Marrow (VBM). MATERIALS ANDMETHODS:
Five algorithms were studied four deterministic algorithms (the One-Step and three segmentedmethods:
Two-Step, Three-Step, and Fixed-[Formula see text] algorithm) based on the least-squares (LSQ) method and a Bayesian probabilistic algorithm. Numerical simulations and quantification of IVIM parameters D, f, [Formula see text] in vivo in vertebral bone marrow, were done on six healthy volunteers. The One-way repeated-measures analysis of variance (ANOVA) followed by Bonferroni's multiple comparison test (p value = 0.05) was applied.RESULTS:
In numerical simulations, the Bayesian algorithm provided the best estimation of D, f, [Formula see text] compared to the deterministic algorithms. In vivo VBM-IVIM, the values of D and f estimated by the Bayesian algorithm were close to those of the One-Step method, in contrast to the three segmented methods.DISCUSSION:
The comparison of the five algorithms indicates that the Bayesian algorithm provides the best estimation of VBM-IVIM parameters, in both numerical simulations and in vivo data.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Procesamiento de Imagen Asistido por Computador
/
Imagen de Difusión por Resonancia Magnética
Límite:
Humans
Idioma:
En
Revista:
MAGMA
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
2023
Tipo del documento:
Article
País de afiliación:
China