Effect of Gray Value Discretization and Image Filtration on Texture Features of the Pancreas Derived from Magnetic Resonance Imaging at 3T
Abstract
:1. Introduction
2. Methods
2.1. Study Population
2.2. Image Acquisition and Reconstruction
2.3. Image Pre-Processing Configurations
2.4. Radiomics Feature Extraction
2.5. Statistical Analysis
3. Results
3.1. Characteristics of Individuals
3.2. Features Extracted from Intensity Discretized MR Images of the Pancreas
3.2.1. Intensity Discretization Based on Fixed Bin Numbers of 16 and 128
3.2.2. Intensity Discretization Based on Fixed Bin Widths of 6 and 42
3.3. Features Extracted from Filtered MR Images of the Pancreas
4. Discussion
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Characteristic | Chronic Pancreatitis (n = 15) | Health (n = 15) | p |
---|---|---|---|
Men, n (%) | 12 (80.0) | 12 (80.0) | 1.000 |
Age (years) | 59.9 ± 10.9 | 59.8 ± 11.3 | 0.987 |
Body mass index (kg/m2) | 28.7 ± 6.2 | 24.9 ± 4.4 | 0.070 |
Weight (kg) | 83.8 ± 17.2 | 76.7 ± 16.1 | 0.253 |
Height (cm) | 171.6 ± 10.7 | 175.1 ± 10.3 | 0.368 |
HDL cholesterol (mmol/L) | 1.5 ± 0.4 | 1.4 ± 0.5 | 0.785 |
LDL cholesterol (mmol/L) | 2.4 ± 1.1 | 2.8 ± 0.6 | 0.225 |
Total cholesterol (mmol/L) | 4.8 ± 1.3 | 4.6 ± 0.9 | 0.705 |
HOMA-IR (mIU/L·mmol/L) | 111.8 ± 150.5 | 36.2 ± 31.5 | 0.067 |
Fasting insulin (mIU/L) | 20.4 ± 27.5 | 13.8 ± 10.9 | 0.452 |
Feature | Intensity Discretization | Filtration | |||||
---|---|---|---|---|---|---|---|
FBN 16 | FBN 128 | FBW 6 | FBW 42 | 2 mm σ | 5 mm σ | Logarithm | |
First-order texture | 3 | 3 | 3 | 3 | 5 | 3 | 7 |
GLCM | 15 | 12 | 4 | 6 | 11 | 0 | 12 |
GLRLM | 11 | 8 | 6 | 8 | 6 | 0 | 8 |
GLSZM | 6 | 9 | 6 | 5 | 5 | 0 | 7 |
GLDM | 9 | 8 | 8 | 7 | 5 | 1 | 5 |
NGTDM | 1 | 1 | 0 | 0 | 1 | 1 | 0 |
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Abunahel, B.M.; Pontre, B.; Petrov, M.S. Effect of Gray Value Discretization and Image Filtration on Texture Features of the Pancreas Derived from Magnetic Resonance Imaging at 3T. J. Imaging 2022, 8, 220. https://doi.org/10.3390/jimaging8080220
Abunahel BM, Pontre B, Petrov MS. Effect of Gray Value Discretization and Image Filtration on Texture Features of the Pancreas Derived from Magnetic Resonance Imaging at 3T. Journal of Imaging. 2022; 8(8):220. https://doi.org/10.3390/jimaging8080220
Chicago/Turabian StyleAbunahel, Bassam M., Beau Pontre, and Maxim S. Petrov. 2022. "Effect of Gray Value Discretization and Image Filtration on Texture Features of the Pancreas Derived from Magnetic Resonance Imaging at 3T" Journal of Imaging 8, no. 8: 220. https://doi.org/10.3390/jimaging8080220