Detection of breast cancer in automated 3D breast ultrasound

Tao Tan, Bram Platel, Roel Mus, Nico Karssemeijer

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)


Automated 3D breast ultrasound (ABUS) is a novel imaging modality, in which motorized scans of the breasts are made with a wide transducer through a membrane under modest compression. The technology has gained high interest and may become widely used in screening of dense breasts, where sensitivity of mammography is poor. ABUS has a high sensitivity for detecting solid breast lesions. However, reading ABUS images is time consuming, and subtle abnormalities may be missed. Therefore, we are developing a computer aided detection (CAD) system to help reduce reading time and errors. In the multi-stage system we propose, segmentations of the breast and nipple are performed, providing landmarks for the detection algorithm. Subsequently, voxel features characterizing coronal spiculation patterns, blobness, contrast, and locations with respect to landmarks are extracted. Using an ensemble of classifiers, a likelihood map indicating potential malignancies is computed. Local maxima in the likelihood map are determined using a local maxima detector and form a set of candidate lesions in each view. These candidates are further processed in a second detection stage, which includes region segmentation, feature extraction and a final classification. Region segmentation is performed using a 3D spiral-scanning dynamic programming method. Region features include descriptors of shape, acoustic behavior and texture. Performance was determined using a 78-patient dataset with 93 images, including 50 malignant lesions. We used 10-fold cross-validation. Using FROC analysis we found that the system obtains a lesion sensitivity of 60% and 70% at 2 and 4 false positives per image respectively.

主出版物標題Medical Imaging 2012
主出版物子標題Computer-Aided Diagnosis
出版狀態Published - 2012
事件Medical Imaging 2012: Computer-Aided Diagnosis - San Diego, CA, United States
持續時間: 7 2月 20129 2月 2012


名字Progress in Biomedical Optics and Imaging - Proceedings of SPIE


ConferenceMedical Imaging 2012: Computer-Aided Diagnosis
國家/地區United States
城市San Diego, CA


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