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      A survey of testicular texture in canine ultrasound images

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          Abstract

          Introduction

          Computer-based texture analysis provides objective data that can be extracted from medical images, including ultrasound images. One popular methodology involves the generation of a gray-level co-occurrence matrix (GLCM) from the image, and from that matrix, texture fractures can be extracted.

          Methods

          We performed texture analysis on 280 ultrasound testicular images obtained from 70 dogs and explored the resulting texture data, by means of principal component analysis (PCA).

          Results

          Various abnormal lesions were identified subjectively in 35 of the 280 cropped images. In 16 images, pinpoint-to-small, well-defined, hyperechoic foci were identified without acoustic shadowing. These latter images were classified as having “microliths.” The remaining 19 images with other lesions and areas of non-homogeneous testicular parenchyma were classified as “other.” In the PCA scores plot, most of the images with lesions were clustered. These clustered images represented by those scores had higher values for the texture features entropy, dissimilarity, and contrast, and lower values for the angular second moment and energy in the first principal component. Other data relating to the dogs, including age and history of treatment for prostatomegaly or chemical castration, did not show clustering on the PCA.

          Discussion

          This study illustrates that objective texture analysis in testicular ultrasound correlates to some of the visual features used in subjective interpretation and provides quantitative data for parameters that are highly subjective by human observer analysis. The study demonstrated a potential for texture analysis in prediction models in dogs with testicular abnormalities.

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          Most cited references38

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          Matplotlib: A 2D Graphics Environment

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            Array programming with NumPy

            Array programming provides a powerful, compact and expressive syntax for accessing, manipulating and operating on data in vectors, matrices and higher-dimensional arrays. NumPy is the primary array programming library for the Python language. It has an essential role in research analysis pipelines in fields as diverse as physics, chemistry, astronomy, geoscience, biology, psychology, materials science, engineering, finance and economics. For example, in astronomy, NumPy was an important part of the software stack used in the discovery of gravitational waves 1 and in the first imaging of a black hole 2 . Here we review how a few fundamental array concepts lead to a simple and powerful programming paradigm for organizing, exploring and analysing scientific data. NumPy is the foundation upon which the scientific Python ecosystem is constructed. It is so pervasive that several projects, targeting audiences with specialized needs, have developed their own NumPy-like interfaces and array objects. Owing to its central position in the ecosystem, NumPy increasingly acts as an interoperability layer between such array computation libraries and, together with its application programming interface (API), provides a flexible framework to support the next decade of scientific and industrial analysis.
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              Radiomics: Images Are More than Pictures, They Are Data

              This report describes the process of radiomics, its challenges, and its potential power to facilitate better clinical decision making, particularly in the care of patients with cancer.
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                Author and article information

                Contributors
                Journal
                Front Vet Sci
                Front Vet Sci
                Front. Vet. Sci.
                Frontiers in Veterinary Science
                Frontiers Media S.A.
                2297-1769
                11 August 2023
                2023
                : 10
                : 1206916
                Affiliations
                Department of Veterinary Clinical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen , Frederiksberg, Denmark
                Author notes

                Edited by: Vítor Manuel De Filipe, University of Trás-os-Montes and Alto Douro, Portugal

                Reviewed by: Lio Gonçalves, University of Trás-os-Montes and Alto Douro, Portugal; Verónica Vasconcelos, Polytechnical Institute of Coimbra, Portugal

                *Correspondence: Anna V. Müller avm@ 123456sund.ku.dk
                Article
                10.3389/fvets.2023.1206916
                10450916
                bc2f4d85-99c8-43d7-916c-7b4a9255ec9a
                Copyright © 2023 McEvoy, Pongvittayanon, Vedel, Holst and Müller.

                This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

                History
                : 16 April 2023
                : 25 July 2023
                Page count
                Figures: 5, Tables: 0, Equations: 0, References: 38, Pages: 9, Words: 6409
                Funding
                This project was partially funded by the Danish Kennel Club and Fondet for Sygdomsbekæmpelse hos vore Familiedyr.
                Categories
                Veterinary Science
                Original Research
                Custom metadata
                Veterinary Imaging

                quantitative texture features,ultrasonography,quantitative image analysis,gray-level co-occurrence matrix,canine,testes

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