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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Segmenting skin ulcers and measuring the wound area using deep convolutional networks

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Chino, Daniel Y. T. [1] ; Scabora, Lucas C. [1] ; Cazzolato, Mirela T. [1] ; Jorge, Ana E. S. [2] ; Traina-, Jr., Caetano [1] ; Traina, Agma J. M. [1]
Total Authors: 6
[1] Univ Sao Paulo, Inst Math & Comp Sci, Sao Paulo - Brazil
[2] Univ Fed Sao Carlos, Dept Phys Therapy, Sao Carlos - Brazil
Total Affiliations: 2
Document type: Journal article
Web of Science Citations: 1

Background and objectives: Bedridden patients presenting chronic skin ulcers often need to be examined at home. Healthcare professionals follow the evolution of the patients' condition by regularly taking pictures of the wounds, as different aspects of the wound can indicate the healing stages of the ulcer, including depth, location, and size. The manual measurement of the wounds' size is often inaccurate, time-consuming, and can also cause discomfort to the patient. In this work, we propose the Automatic Skin Ulcer Region Assessment ASURA framework to accurately segment the wound and automatically measure its size. Methods: ASURA uses an encoder/decoder deep neural network to perform the segmentation, which detects the measurement ruler/tape present in the image and estimates its pixel density. Results: Experimental results show that ASURA outperforms the state-of-the-art methods by up to 16% regarding the Dice score, being able to correctly segment the wound with a Dice score higher than 90%. ASURA automatically estimates the pixel density of the images with a relative error of 5%. When using a semi-automatic approach, ASURA was able to estimate the area of the wound in square centimeters with a relative error of 14%. Conclusions: The results show that ASURA is well-suited for the problem of segmenting and automatically measuring skin ulcers. (C) 2020 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 16/17330-1 - Storage and Navigation Operations on Graphs in Relational DBMS
Grantee:Lucas de Carvalho Scabora
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 14/25125-3 - Formalization and management of content-based information retrieval of complex objects with hierarchical and cross-modal data
Grantee:Daniel Yoshinobu Takada Chino
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 18/24414-2 - A framework for integration of feature extraction techniques and complex databases for MIVisBD
Grantee:Mirela Teixeira Cazzolato
Support type: Scholarships in Brazil - Technical Training Program - Technical Training
FAPESP's process: 16/17078-0 - Mining, indexing and visualizing Big Data in clinical decision support systems (MIVisBD)
Grantee:Agma Juci Machado Traina
Support type: Research Projects - Thematic Grants