Document Detail


Quantification of microporosity in fruit by MRI at various magnetic fields: comparison with X-ray microtomography.
MedLine Citation:
PMID:  20850246     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Microstructure determines the mechanical and transport properties of fruit tissues. One important characteristic of the microstructure is the relative volume fraction of gas-filled intercellular spaces, i.e., the tissue microporosity. Quantification of this microporosity is fundamental for investigating the relationship between gas transfer and various disorders in fruit. We present a new method for quantifying the apparent microporosity using magnetic resonance imaging (MRI). The method is based on the differences in magnetic susceptibility between gas-filled intercellular spaces and their environment inside fruit tissues. It was tested at two different magnetic fields (1.5 and 0.2 T) on apple and tomato fruit. The method was validated by comparing the MRI results with estimation of local tissue porosity using X-ray microtomography experiments. MRI was shown to be effective in determining the distribution of apparent microporosity in fruit.
Authors:
Maja Musse; François De Guio; Stéphane Quellec; Mireille Cambert; Sylvain Challois; Armel Davenel
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Publication Detail:
Type:  Journal Article     Date:  2010-09-17
Journal Detail:
Title:  Magnetic resonance imaging     Volume:  28     ISSN:  1873-5894     ISO Abbreviation:  Magn Reson Imaging     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8214883     Medline TA:  Magn Reson Imaging     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1525-34     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Cemagref, UR TERE, 17 avenue de Cucillé, CS 64427, F-35044 Rennes France. maja.musse@cemagref.fr
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