Multiorgan structures detection using deep convolutional neural networks

Jorge Onieva Onieva; Germán González Serrano; Thomas P. Young; George R. Washko; María Jesús Ledesma Carbayo; Raúl San José Estépar

doi:10.1117/12.2293761

2 March 2018 Multiorgan structures detection using deep convolutional neural networks

Jorge Onieva Onieva, Germán González Serrano, Thomas P. Young, George R. Washko, María Jesús Ledesma Carbayo, Raúl San José Estépar

Author Affiliations +

Proceedings Volume 10574, Medical Imaging 2018: Image Processing; 1057428 (2018) https://doi.org/10.1117/12.2293761
Event: SPIE Medical Imaging, 2018, Houston, Texas, United States

Abstract

Many automatic image analysis algorithms in medical imaging require a good initialization to work properly. A similar problem occurs in many imaging-based clinical workflows, which depend on anatomical landmarks. The localization of anatomic structures based on a defined context provides with a solution to that problem, which turns out to be more challenging in medical imaging where labeled images are difficult to obtain. We propose a two-stage process to detect and regress 2D bounding boxes of predefined anatomical structures based on a 2D surrounding context. First, we use a deep convolutional neural network (DCNN) architecture to detect the optimal slice where an anatomical structure is present, based on relevant landmark features. After this detection, we employ a similar architecture to perform a 2D regression with the aim of proposing a bounding box where the structure is encompassed. We trained and tested our system for 57 anatomical structures defined in axial, sagittal and coronal planes with a dataset of 504 labeled Computed Tomography (CT) scans. We compared our method with a well-known object detection algorithm (Viola Jones) and with the inter-rater error for two human experts. Despite the relatively small number of scans and the exhaustive number of structures analyzed, our method obtained promising and consistent results, which proves our architecture very generalizable to other anatomical structures.

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Jorge Onieva Onieva, Germán González Serrano, Thomas P. Young, George R. Washko, María Jesús Ledesma Carbayo, and Raúl San José Estépar "Multiorgan structures detection using deep convolutional neural networks", Proc. SPIE 10574, Medical Imaging 2018: Image Processing, 1057428 (2 March 2018); https://doi.org/10.1117/12.2293761

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