Feature Selection for Automatic CT-based Prostate Segmentation

被引:0
|
作者
Kos, Artur [1 ]
Skalski, Andrzej [2 ]
Zielinski, Tomasz P. [1 ]
Gomes, Diana [3 ]
Sa, Vitor [3 ]
Kedzierawski, Piotr [4 ]
Kuszewski, Tomasz [5 ]
机构
[1] AGH Univ Sci & Technol, Dept Telecommun, Krakow, Poland
[2] AGH Univ Sci & Technol, Dept Measurement & Elect, Krakow, Poland
[3] Univ Porto, Fac Engn, Oporto, Portugal
[4] Holly Cross Canc Ctr, Dept Radiotherapy, Kielce, Poland
[5] Holly Cross Canc Ctr, Dept Med Phys, Kielce, Poland
关键词
feature selection; prostate segmentation; computed tomography; radiotherapy;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
The paper addresses a problem of feature selection for automatic prostate segmentation in Computed Tomography (CT) planning data for radiotherapy process. The following image descriptors have been tested in 2D and 3D scenarios: standard Hounsfield Unit (HU) profiles, histogram of oriented gradient (HoG), Haar wavelets, and Modality Independent Neighborhood Descriptor (MIND). The task was to distinguish a prostate interior and exterior. 22 CT volumes with different spatial resolution and different organ outlines have been used. The k-Nearest Neighbors (kNN) classifier was applied and the following recognition measures were evaluated, with 10-fold cross-validation: accuracy, precision, sensitivity and specificity.
引用
收藏
页码:243 / 248
页数:6
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