共 54 条
Computerized three-class classification of MRI-based prognostic markers for breast cancer
被引:34
作者:

Bhooshan, Neha
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Chicago, Dept Radiol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA

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h-index:
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Edwards, Darrin
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Chicago, Dept Radiol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA

Yuan, Yading
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Chicago, Dept Radiol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA

Jansen, Sanaz
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Chicago, Dept Radiol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA

Li, Hui
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h-index: 0
机构:
Univ Chicago, Dept Radiol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA

Lan, Li
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h-index: 0
机构:
Univ Chicago, Dept Radiol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA

Sattar, Husain
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Chicago, Dept Pathol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA

Newstead, Gillian
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Chicago, Dept Radiol, Chicago, IL 60637 USA Univ Chicago, Dept Radiol, Chicago, IL 60637 USA
机构:
[1] Univ Chicago, Dept Radiol, Chicago, IL 60637 USA
[2] Univ Chicago, Dept Pathol, Chicago, IL 60637 USA
关键词:
OBSERVER VARIABILITY;
AIDED-DIAGNOSIS;
LESIONS;
ANGIOGENESIS;
SURVIVAL;
GRADE;
FEATURES;
IMAGES;
CAD;
D O I:
10.1088/0031-9155/56/18/014
中图分类号:
R318 [生物医学工程];
学科分类号:
0831 ;
摘要:
The purpose of this study is to investigate whether computerized analysis using three-class Bayesian artificial neural network (BANN) feature selection and classification can characterize tumor grades (grade 1, grade 2 and grade 3) of breast lesions for prognostic classification on DCE-MRI. A database of 26 IDC grade 1 lesions, 86 IDC grade 2 lesions and 58 IDC grade 3 lesions was collected. The computer automatically segmented the lesions, and kinetic and morphological lesion features were automatically extracted. The discrimination tasks-grade 1 versus grade 3, grade 2 versus grade 3, and grade 1 versus grade 2 lesions-were investigated. Step-wise feature selection was conducted by three-class BANNs. Classification was performed with three-class BANNs using leave-one-lesion-out cross-validation to yield computer-estimated probabilities of being grade 3 lesion, grade 2 lesion and grade 1 lesion. Two-class ROC analysis was used to evaluate the performances. We achieved AUC values of 0.80 +/- 0.05, 0.78 +/- 0.05 and 0.62 +/- 0.05 for grade 1 versus grade 3, grade 1 versus grade 2, and grade 2 versus grade 3, respectively. This study shows the potential for (1) applying three-class BANN feature selection and classification to CADx and (2) expanding the role of DCE-MRI CADx from diagnostic to prognostic classification in distinguishing tumor grades.
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页码:5995 / 6008
页数:14
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