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- W2016095646 abstract "Breast biopsy serves as the key diagnostic tool in the evaluation of breast masses for malignancy, yet the procedure affects patients physically and emotionally and may obscure results of future mammograms. Studies show that high quality ultrasound can distinguish a benign from malignant lesions with accuracy, however, it has proven difficult to teach and clinical results are highly variable. The purpose of this study is to develop a means to optimize an automated Computer Aided Imaging System (CAIS) to assess Level of Suspicion (LOS) of a breast mass. We examine the contribution of 15 object features to lesion classification by calculating the Wilcoxon area under the ROC curve, A<sub>W</sub>, for all combinations in a set of 146 masses with known findings. For each interval A, the frequency of appearance of each feature and its combinations with others was computed as a means to find an “optimum” feature vector. The original set of 15 was reduced to 6 (area, perimeter, diameter ferret Y, relief, homogeneity, average energy) with an improvement from A<sub>w</sub>=0.82∓0.04 for the original 15 to A<sub>w</sub>=0.93∓0.02 for the subset of 6, p=0.03. For comparison, two sub-specialty mammography radiologists also scored the images for LOS resulting in A<sub>z</sub> of 0.90 and 0.87. The CAIS performed significantly higher, p=0.02." @default.
- W2016095646 created "2016-06-24" @default.
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- W2016095646 date "2003-05-21" @default.
- W2016095646 modified "2023-09-23" @default.
- W2016095646 title "ROC analysis of lesion descriptors in breast ultrasound images" @default.
- W2016095646 doi "https://doi.org/10.1117/12.480333" @default.
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