?-ViP: Customized virtual phantom for quantitative magnetic resonance micro-imaging at high magnetic field
Rondeau Mouro, C. ; Kovrlija, R. ; Gambarota, G. ; Saint-Jalmes, H.
Type de document
Article de revue scientifique à comité de lecture
Affiliation de l'auteur
IRSTEA RENNES UR OPAALE FRA ; IRSTEA RENNES UR OPAALE FRA ; INSERM URM 1099 RENNES FRA ; INSERM URM 1099 RENNES FRA
Résumé / Abstract
The applications of Magnetic Resonance micro-Imaging (MR?I) cover nowadays a wide range of fields. However few of them present quantitative measurements when the sample of interest changes over time or in case of a long acquisition time. In this domain, two challenges have to be overcome: the introduction of a phantom as a reference signal and the guarantee that this signal is stable over the experiment duration while some conditions such as temperature and/or the moisture are varied. The aim of the present study was to implement a dedicated experimental set-up to generate a virtual phantom (ViP) signal in a vertical-bore 11.7 T NMR spectrometer, equipped with a micro-imaging probe. This study shows that the generation of a micro-imaging-dedicated ViP (?-ViP) signal is of great benefit for on-line quality control of the spectrometer performance during acquisition in the case of real-time experiments. Thus, ?ViP represents a step towards improvement of the magnetic resonance signal quantification in small samples. © 2016 Elsevier Inc.
Journal of Magnetic Resonance, vol. 275, p. 73 - 79