Content-based retrieval of brain tumor in contrast-enhanced MRI images using tumor margin information and learned distance metric

2012 ◽  
Vol 39 (11) ◽  
pp. 6929-6942 ◽  
Author(s):  
Wei Yang ◽  
Qianjin Feng ◽  
Mei Yu ◽  
Zhentai Lu ◽  
Yang Gao ◽  
...  
Keyword(s):  
Brain Tumor ◽  
Distance Metric ◽  
Content Based Retrieval ◽  
Tumor Margin ◽  
Enhanced Mri ◽  
Contrast Enhanced ◽  
Contrast Enhanced Mri

scholarly journals Retrieval of Brain Tumors with Region-Specific Bag-of-Visual-Words Representations in Contrast-Enhanced MRI Images

2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
Meiyan Huang ◽  
Wei Yang ◽  
Mei Yu ◽  
Zhentai Lu ◽  
Qianjin Feng ◽  
...  
Keyword(s):  
Brain Tumor ◽  
Brain Tumors ◽  
Spatial Information ◽  
Learning Algorithm ◽  
Bag Of Visual Words ◽  
Similarity Metric ◽  
Visual Words ◽  
Enhanced Mri ◽  
Contrast Enhanced ◽  
Contrast Enhanced Mri

A content-based image retrieval (CBIR) system is proposed for the retrieval of T1-weighted contrast-enhanced MRI (CE-MRI) images of brain tumors. In this CBIR system, spatial information in the bag-of-visual-words model and domain knowledge on the brain tumor images are considered for the representation of brain tumor images. A similarity metric is learned through a distance metric learning algorithm to reduce the gap between the visual features and the semantic concepts in an image. The learned similarity metric is then used to measure the similarity between two images and then retrieve the most similar images in the dataset when a query image is submitted to the CBIR system. The retrieval performance of the proposed method is evaluated on a brain CE-MRI dataset with three types of brain tumors (i.e., meningioma, glioma, and pituitary tumor). The experimental results demonstrate that the mean average precision values of the proposed method range from 90.4% to 91.5% for different views (transverse, coronal, and sagittal) with an average value of 91.0%.

Analysis of parametric histogram from dynamic contrast-enhanced MRI: application in evaluating brain tumor response to radiotherapy

2012 ◽  
Vol 26 (4) ◽  
pp. 443-450 ◽  
Author(s):  
Shin-Lei Peng ◽  
Chih-Feng Chen ◽  
Ho-Ling Liu ◽  
Chun-Chung Lui ◽  
Yu-Jie Huang ◽  
...  
Keyword(s):  
Brain Tumor ◽  
Tumor Response ◽  
Dynamic Contrast Enhanced Mri ◽  
Dynamic Contrast Enhanced ◽  
Enhanced Mri ◽  
Contrast Enhanced ◽  
Contrast Enhanced Mri
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