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[640] - MRI in soils: Determination of water content changes due to root water uptake by means of Multi-Slice-Multi-Echo sequence (MSME)

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Features
Citation
Pohlmeier, A., Vergeldt, F., Gerkema, E., van As, H., van Dusschoten, D., Vereecken, H., 2010. MRI in soils: Determination of water content changes due to root water uptake by means of Multi-Slice-Multi-Echo sequence (MSME). The Open Magnetic Resonance Journal, 3, 69 - 74. DOI: 10.2174/187476980103010057.
Identification
Title(s):Main Title: MRI in soils: Determination of water content changes due to root water uptake by means of Multi-Slice-Multi-Echo sequence (MSME)
Description(s):Abstract: Root water uptake by ricinus communis (castor bean) in fine sand was investigated using MRI with multiecho sampling. Before starting the experiments the plants germinated and grew for 3 weeks in a cylindrical container with a diameter of 9 cm. Immediately before the MRI experiments started, the containers were water-saturated and sealed, so water content changes were only caused by root water uptake. In continuation of a preceding work, where we applied SPRITE we tested a multi-echo multi-slice sequence (MSME). In this approach, the water content was imaged by setting TE = 6.76 ms and nE = 128 with an isotropic resolution of 3.1mm. We calculated the water content maps by biexponential fitting of the multi-slice echo train data and normalisation on reference cuvettes filled with glass beads and 1 mM NiCl2 solution. The water content determination was validated by comparing to mean gravimetric water content measurements. By coregistration with the root architecture, visualised by a 3D fast spin echo sequence (RARE), we conclude that the largest water content changes occurred in the neighbourhood of the roots and in the upper layers of the soil.
Identifier(s):DOI: 10.2174/187476980103010057
Responsible Party
Creator(s):Author: Andreas Pohlmeier
Author: Frank Vergeldt
Author: Edo Gerkema
Author: Henk van As
Author: Dagmar van Dusschoten
Author: Harry Vereecken
Publisher:Bentham Open
Topic
TR32 Topic:Soil
Subject(s):CRC/TR32 Keywords: MRI, Root System, RWU, Relaxometric Imaging
File Details
File Name:2010_Pohlmeier_OMRJ.pdf
Data Type:Text
Size(s):6 Pages
File Size:339 kB (0.331 MB)
Date(s):Date Accepted: 2009-11-20
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
Constraints
Download Permission:OnlyTR32
General Access and Use Conditions:For internal use only
Access Limitations:For internal use only
Licence:TR32DB Data policy agreement
Geographic
North:-no map data
East:-
South:-
West:-
Measurement Region:Laboratory
Measurement Location:--Laboratory--
Specific Informations - Publication
Status:Published
Review:PeerReview
Year:2010
Type:Article
Article Type:Journal
Source:The Open Magnetic Resonance Journal
Volume:3
Number Of Pages:6
Page Range:69 - 74
Metadata Details
Metadata Creator:Markus Küppers
Metadata Created:2013-12-02
Metadata Last Updated:2013-12-02
Subproject:A1
Funding Phase:1
Metadata Language:English
Metadata Version:V40
Dataset Metrics
Page Visits:154
Metadata Downloads:0
Dataset Downloads:0
Dataset Activity
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