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http://hdl.handle.net/10609/125327
Títol: | A novel method for reconstructing CT images in GATE/GEANT4 with application in medical imaging: a complexity analysis approach |
Autoria: | Gholami, Neda Dehshibi, Mohammad Mahdi Adamatzky, Andrew Rueda Toicen, Antonio Zenil, Hector Fazlali, Mahmood Masip Rodó, David |
Altres: | Pattern Research Center University of the West of England Algorithmic Nature Group Karolinska Institutet Oxford University Innovation Shahid Beheshti University Universitat Oberta de Catalunya (UOC) |
Citació: | Gholami, N., Dehshibi, M.M., Adamatzky, A., Rueda-Toicen, A., Zenil, H., Fazlali, M. & Masip, D. (2020). A novel method for reconstructing CT images in GATE/GEANT4 with application in medical imaging: A complexity analysis approach. Journal of Information Processing, 28, 161-168. doi: 10.2197/ipsjjip.28.161 |
Resum: | For reconstructing CT images in the clinical setting, "effective energy" is usually used instead of the total X-ray spectrum. This approximation causes an accuracy decline. We proposed to quantize the total X-ray spectrum into irregular intervals to preserve accuracy. A phantom consisting of the skull, rib bone, and lung tissues was irradiated with CT configuration in GATE/GEANT4. We applied inverse Radon transform to the obtained Sinogram to construct a Pixel-based Attenuation Matrix (PAM). PAM was then used to weight the calculated Hounsfield unit scale (HU) of each interval's representative energy. Finally, we multiplied the associated normalized photon flux of each interval to the calculated HUs. The performance of the proposed method was evaluated in the course of Complexity and Visual analysis. Entropy measurements, Kolmogorov complexity, and morphological richness were calculated to evaluate the complexity. Quantitative visual criteria (i.e., PSNR, FSIM, SSIM, and MSE) were reported to show the effectiveness of the fuzzy C-means approach in the segmenting task. |
Paraules clau: | complexitat imatge del TAC FCM GATE/Geant4 unitat Hounsfield matriu d'atenuació basada en píxels |
DOI: | 10.2197/ipsjjip.28.161 |
Tipus de document: | info:eu-repo/semantics/article |
Versió del document: | info:eu-repo/semantics/publishedVersion |
Data de publicació: | feb-2020 |
Apareix a les col·leccions: | Articles cientÍfics Articles |
Arxius per aquest ítem:
Arxiu | Descripció | Mida | Format | |
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Dehshibi_Masip_JIP_A_novel.pdf Restricted Access | 5,84 MB | Adobe PDF | Veure/Obrir Demanar una còpia |
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