3 March 2017 A study of retrieval accuracy of pulmonary nodules based on external attachment
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Abstract
In this paper, retrieval accuracy of different types of pulmonary nodules is studied. The trainee radiologists could enrich their knowledge using the visual information of the retrieved nodules. In the proposed retrieval system, the pulmonary nodules are segmented using a semi-automated technique. Several 3D features are explored to improve the performance of the proposed retrieval system. A set of relevant shape and texture features is determined for efficient representation of the nodules in the feature space. The proposed CBIR system is validated on a data set of 542 nodules of Lung Image Database Consortium and Image Database Resource Initiative (LIDC/IDRI). The nodules with composite rank of malignancy “1”, “2” are considered as benign and “4”, “5” are considered as malignant. Considering top five retrieved images, the precision of the proposed retrieval system are 84.76%, 80.75%, and 80.34% for well-circumscribed, juxta-pleural, and juxtavascular nodules, respectively.
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Ashis Kumar Dhara, Sudipta Mukhopadhyay, Shrikant A. Mehre, Niranjan Khandelwal, Nidhi Prabhakar, Mandeep Garg, Naveen Kalra, "A study of retrieval accuracy of pulmonary nodules based on external attachment", Proc. SPIE 10134, Medical Imaging 2017: Computer-Aided Diagnosis, 101343T (3 March 2017); doi: 10.1117/12.2254249; https://doi.org/10.1117/12.2254249
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