Caractérisation de l'hippocampe par analyse texturale chez les épileptiques
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Caractérisation de l'hippocampe par analyse texturale chez les épileptiques

Caractérisation de l'hippocampe par analyse texturale chez les épileptiques


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About the Book

Il s'agit d'une tentative d'étude du corps, de la tête, de la queue et des images IRM de l'hippocampe à l'aide de techniques d'analyse informatique. Les principaux objectifs de cette étude étaient de caractériser les tissus de l'hippocampe en deux classes: normal et épileptique, à l'aide d'une analyse texturale. La texture a été extraite de la matrice de dépendance des niveaux de gris spatiaux à l'aide d'une fenêtre de 20×20 pixels d'angle zéro et de distance égale à un pixel. Les images ont été collectées à partir de scanners cérébraux IRM pour 18 patients représentant les classes de l'étude dans la période allant de 7/2011 à 2/2012. Les images ont été évaluées par un radiologue expert et l'évaluation a été acceptée en cas de concordance avec les résultats de l'EEG. Les caractéristiques ont ensuite été extraites des sous-images sélectionnées qui ne montrent que la région d'intérêt. Une analyse discriminante linéaire par étapes a été utilisée pour classer l'échantillon dans les classes prédéfinies. L'analyse discriminante linéaire a sélectionné un certain nombre de caractéristiques sur quinze. Les résultats de cette étude ont montré que la précision totale de la classification était de 83,3 %, 80,6 %, 91,7 % et 79,6 % pour le corps, la tête, la queue et le plan sagittal respectivement. La sensibilité était de 72,2, 72,2, 94,4 % et 79,6. La spécificité était respectivement de 94,4 %, 88,92 %, 88,9 % et 79,6 %.


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Product Details
  • ISBN-13: 9786207377350
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: French
  • Returnable: N
  • Weight: 95 gr
  • ISBN-10: 6207377354
  • Publisher Date: 12 Apr 2024
  • Height: 229 mm
  • No of Pages: 56
  • Spine Width: 3 mm
  • Width: 152 mm


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