Volumetric Lung Nodule Segmentation using Adaptive ROI with Multi-View Residual Learning

• URL: http://arxiv.org/abs/1912.13335v2
• Date: Mon, 3 Feb 2020 10:57:24 GMT
• Title: Volumetric Lung Nodule Segmentation using Adaptive ROI with Multi-View Residual Learning
• Authors: Muhammad Usman, Byoung-Dai Lee, Shi Sub Byon, Sung Hyun Kim, and Byung-ilLee
• Abstract summary: The proposed approach has been rigorously evaluated on the LIDC dataset. The result suggests that the approach is significantly robust and accurate as compared to the previous state of the art techniques.
• Score: 2.8145631839076004
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate quantification of pulmonary nodules can greatly assist the early diagnosis of lung cancer, which can enhance patient survival possibilities. A number of nodule segmentation techniques have been proposed, however, all of the existing techniques rely on radiologist 3-D volume of interest (VOI) input or use the constant region of interest (ROI) and only investigate the presence of nodule voxels within the given VOI. Such approaches restrain the solutions to investigate the nodule presence outside the given VOI and also include the redundant structures into VOI, which may lead to inaccurate nodule segmentation. In this work, a novel semi-automated approach for 3-D segmentation of nodule in volumetric computerized tomography (CT) lung scans has been proposed. The proposed technique can be segregated into two stages, at the first stage, it takes a 2-D ROI containing the nodule as input and it performs patch-wise investigation along the axial axis with a novel adaptive ROI strategy. The adaptive ROI algorithm enables the solution to dynamically select the ROI for the surrounding slices to investigate the presence of nodule using deep residual U-Net architecture. The first stage provides the initial estimation of nodule which is further utilized to extract the VOI. At the second stage, the extracted VOI is further investigated along the coronal and sagittal axis with two different networks and finally, all the estimated masks are fed into the consensus module to produce the final volumetric segmentation of nodule. The proposed approach has been rigorously evaluated on the LIDC dataset, which is the largest publicly available dataset. The result suggests that the approach is significantly robust and accurate as compared to the previous state of the art techniques.

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