期刊
BIOMOLECULES
卷 13, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/biom13020286
关键词
MRI; T-2; relaxometry; tuber; storage; classification
This paper describes the MRI analysis of potato tubers with internal defects, generating bi-exponential T-2 maps and successfully analyzing the relaxation parameters for each region and their evolution during storage. The work demonstrates the value of MRI for detailed non-invasive plant tissue characterization.
Magnetic Resonance Imaging is a powerful non-destructive tool in the study of plant tissues. For potato tubers, it greatly assists the study of tissue defects and tissue evolution during storage. This paper describes the MRI analysis of potato tubers with internal defects in their flesh tissue at eight sampling dates from 14 to 33 weeks after harvest. Spatialized multi-exponential T-2 relaxometry was used to generate bi-exponential T-2 maps, coupled with a classification scheme to identify the different T-2 homogeneous zones within the tubers. Six classes with statistically different relaxation parameters were identified at each sampling date, allowing the defects and the pith and cortex tissues to be detected. A further distinction could be made between three constitutive elements within the flesh, revealing the heterogeneity of this particular tissue. Relaxation parameters for each class and their evolution during storage were successfully analyzed. The work demonstrated the value of MRI for detailed non-invasive plant tissue characterization.
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