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Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?

BACKGROUND: Prostatic diseases in intact male dogs are common. However, studies about the computed tomographic (CT) examination of the prostate in dogs are rare. The aim of the present study was to evaluate age related-changes in the canine prostate with the help of the CT and to evaluate whether me...

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Autores principales: Kuhnt, N.S.M., Harder, L. K., Nolte, I., Wefstaedt, P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5422865/
https://www.ncbi.nlm.nih.gov/pubmed/28482833
http://dx.doi.org/10.1186/s12917-017-1016-5
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author Kuhnt, N.S.M.
Harder, L. K.
Nolte, I.
Wefstaedt, P.
author_facet Kuhnt, N.S.M.
Harder, L. K.
Nolte, I.
Wefstaedt, P.
author_sort Kuhnt, N.S.M.
collection PubMed
description BACKGROUND: Prostatic diseases in intact male dogs are common. However, studies about the computed tomographic (CT) examination of the prostate in dogs are rare. The aim of the present study was to evaluate age related-changes in the canine prostate with the help of the CT and to evaluate whether measuring Hounsfield Units (HUs) in different morphological conditions of the prostate is of diagnostic value. Fifty pre- and post-contrast CT scans of the prostate of dogs were evaluated and divided into three groups according to the tissue structure: Group1 dogs with homogenous prostate tissue (16/50); group 2 with prostate cysts (26/50) and group 3 with inhomogeneous prostate tissue (8/50). The prostatic dimensions were measured and the ratio between length, height and width and the sixth lumbar vertebra was calculated. Median values of prostatic attenuation measured in HUs, using regions of interests (ROIs) were determined on pre- and post- contrast scans over the whole length of the prostate. The results were compared to the dog’s age. Furthermore, the CT Images were compared with the results of ultrasonography (47/50). RESULTS: On pre-contrast scans HUs within ROIs placed in the prostate did not differ statistically significantly between the different morphological groups (1: 37.7; 2: 36.3; 3: 39.8 HU). HUs within on the post- contrast scans showed statistically significant differences between the groups. Group one had a mean density of 93.6 HU, group two had a mean density of 106.1 HU and group three had one of 138.2 HU. The prostatic size in the first group was smaller than in the other groups, whereas the largest prostates were found in the second group. In six cases the post-contrast CT scan showed results that differed from the ultrasound examination. Dogs had a homogenous tissue in ultrasonography while the CT scan revealed an inhomogeneous tissue structure. CONCLUSIONS: The CT examination can be a beneficial diagnostic tool for examining the prostatic size and for evaluating the prostatic tissue. The different HUs reflected age-related changes and alterations in the prostate while measuring the density of the prostate. Contrast agent application enables a more specific analysis of the prostate to be carried out and for precise changes in tissue structure to be observed.
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spelling pubmed-54228652017-05-12 Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate? Kuhnt, N.S.M. Harder, L. K. Nolte, I. Wefstaedt, P. BMC Vet Res Research Article BACKGROUND: Prostatic diseases in intact male dogs are common. However, studies about the computed tomographic (CT) examination of the prostate in dogs are rare. The aim of the present study was to evaluate age related-changes in the canine prostate with the help of the CT and to evaluate whether measuring Hounsfield Units (HUs) in different morphological conditions of the prostate is of diagnostic value. Fifty pre- and post-contrast CT scans of the prostate of dogs were evaluated and divided into three groups according to the tissue structure: Group1 dogs with homogenous prostate tissue (16/50); group 2 with prostate cysts (26/50) and group 3 with inhomogeneous prostate tissue (8/50). The prostatic dimensions were measured and the ratio between length, height and width and the sixth lumbar vertebra was calculated. Median values of prostatic attenuation measured in HUs, using regions of interests (ROIs) were determined on pre- and post- contrast scans over the whole length of the prostate. The results were compared to the dog’s age. Furthermore, the CT Images were compared with the results of ultrasonography (47/50). RESULTS: On pre-contrast scans HUs within ROIs placed in the prostate did not differ statistically significantly between the different morphological groups (1: 37.7; 2: 36.3; 3: 39.8 HU). HUs within on the post- contrast scans showed statistically significant differences between the groups. Group one had a mean density of 93.6 HU, group two had a mean density of 106.1 HU and group three had one of 138.2 HU. The prostatic size in the first group was smaller than in the other groups, whereas the largest prostates were found in the second group. In six cases the post-contrast CT scan showed results that differed from the ultrasound examination. Dogs had a homogenous tissue in ultrasonography while the CT scan revealed an inhomogeneous tissue structure. CONCLUSIONS: The CT examination can be a beneficial diagnostic tool for examining the prostatic size and for evaluating the prostatic tissue. The different HUs reflected age-related changes and alterations in the prostate while measuring the density of the prostate. Contrast agent application enables a more specific analysis of the prostate to be carried out and for precise changes in tissue structure to be observed. BioMed Central 2017-05-08 /pmc/articles/PMC5422865/ /pubmed/28482833 http://dx.doi.org/10.1186/s12917-017-1016-5 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Kuhnt, N.S.M.
Harder, L. K.
Nolte, I.
Wefstaedt, P.
Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?
title Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?
title_full Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?
title_fullStr Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?
title_full_unstemmed Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?
title_short Computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?
title_sort computed tomography: a beneficial diagnostic tool for the evaluation of the canine prostate?
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5422865/
https://www.ncbi.nlm.nih.gov/pubmed/28482833
http://dx.doi.org/10.1186/s12917-017-1016-5
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