Measuring brain perfusion with intravoxel incoherent motion (IVIM): Initial clinical experience.

Détails

ID Serval
serval:BIB_C18C125D2BB1
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Measuring brain perfusion with intravoxel incoherent motion (IVIM): Initial clinical experience.
Périodique
Journal of Magnetic Resonance Imaging
Auteur(s)
Federau C., O'Brien K., Meuli R., Hagmann P., Maeder P.
ISSN
1522-2586 (Electronic)
ISSN-L
1053-1807
Statut éditorial
Publié
Date de publication
2014
Volume
39
Numéro
3
Pages
624-632
Langue
anglais
Notes
Publication types: Journal ArticlePublication Status: ppublish
Résumé
PURPOSE: To evaluate the feasibility of intravoxel incoherent motion (IVIM) perfusion measurements in the brain with currently available imaging systems.
MATERIALS AND METHODS: We acquired high in-plane resolution (1.2 × 1.2 mm(2) ) diffusion-weighted images with 16 different values of b ranging from 0 to 900 s/mm(2) , in three orthogonal directions, on 3T systems with a 32-multichannel receiver head coil. IVIM perfusion maps were extracted by fitting a double exponential model of signal amplitude decay. Regions of interest were drawn in pathological and control regions, where IVIM perfusion parameters were compared to the corresponding dynamic susceptibility contrast (DSC) parameters.
RESULTS: Hyperperfusion was found in the nonnecrotic or cystic part of two histologically proven glioblastoma multiforme and in two histologically proven glioma WHO grade III, as well as in a brain metastasis of lung adenocarcinoma, in a large meningioma, and in a case of ictal hyperperfusion. A monoexponential decay was found in a territory of acute ischemia, as well as in the necrotic part of a glioblastoma. The IVIM perfusion fraction f correlated well with DSC CBV.
CONCLUSION: Our initial report suggests that high-resolution brain perfusion imaging is feasible with IVIM in the current clinical setting. J. Magn. Reson. Imaging 2014;39:624-632. © 2013 Wiley Periodicals, Inc.
Pubmed
Web of science
Création de la notice
18/02/2014 12:19
Dernière modification de la notice
20/08/2019 15:36
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