Spatially localized sparse representations for breast lesion characterization.
Spatially localized sparse representations for breast lesion characterization.
复制标题
用于乳腺病变表征的空间局部稀疏表示。
DOI:
10.1016/j.compbiomed.2020.103914
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发表时间:
2020
影响因子:
7.7
通讯作者:
Makrogiannis,Sokratis
中科院分区:
文献类型:
--
作者:
Zheng,Keni;Harris,Chelsea;Bakic,Predrag;Makrogiannis,Sokratis
RationaleThe topic of sparse representation of samples in high dimensional spaces has attracted growing interest during the past decade. In this work, we develop sparse representation-based methods for classification of radiological imaging patterns of breast lesions into benign and malignant states.MethodsWe propose a spatial block decomposition method to address irregularities of the approximation problem and to build an ensemble of classifiers (CL) that we expect to yield more accurate numerical solutions than conventional whole-region of interest (ROI) sparse analyses. We introduce two classification decision strategies based on maximum a posteriori probability (BBMAP-S), or a log likelihood function (BBLL-S).ResultsTo evaluate the performance of the proposed approach we used cross-validation techniques on imaging datasets with disease class labels. We utilized the proposed approach for separation of breast lesions into benign and malignant categories in mammograms. The level of difficulty is high in this application and the accuracy may depend on the lesion size. Our results indicate that the proposed integrative sparse analysis addresses the ill-posedness of the approximation problem, producing AUC (area under the receiver operating curve) value of 89.1% for randomized 30-fold cross-validation.ConclusionsFurthermore, our comparative experiments showed that the BBLL-S decision function may yield more accurate classification than BBMAP-S because BBLL-S accounts for possible estimation bias.
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影响因子:
4.9
作者:
W. T. Davis
通讯作者:
W. T. Davis
影响因子:
--
作者:
S. Lenhart;D. Campbell
通讯作者:
D. Campbell
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
W. Pilacinski;J. Ruuskanen;Chih;M. Pan;K. Willeke
通讯作者:
K. Willeke
DOI:
--
发表时间:
1990
期刊:
American Industrial Hygiene Association Journal
影响因子:
--
作者:
K. Galvin;S. Selvin;R. Spear
通讯作者:
R. Spear
影响因子:
6.9
作者:
K. Rogers
通讯作者:
K. Rogers