Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases
To describe the computed tomographic (CT) features of focal liver lesions (FLLs) in dogs, that could enable predicting lesion histotype. Dogs diagnosed with FLLs through both CT and cytopathology and/or histopathology were retrospectively collected. Ten qualitative and 6 quantitative CT features hav...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:12100bb9ad45403bba60a2b7481b747b2021-11-04T14:29:16ZDiagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases2297-176910.3389/fvets.2021.611556https://doaj.org/article/12100bb9ad45403bba60a2b7481b747b2021-03-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fvets.2021.611556/fullhttps://doaj.org/toc/2297-1769To describe the computed tomographic (CT) features of focal liver lesions (FLLs) in dogs, that could enable predicting lesion histotype. Dogs diagnosed with FLLs through both CT and cytopathology and/or histopathology were retrospectively collected. Ten qualitative and 6 quantitative CT features have been described for each case. Lastly, a machine learning-based decision tree was developed to predict the lesion histotype. Four categories of FLLs - hepatocellular carcinoma (HCC, n = 13), nodular hyperplasia (NH, n = 19), other benign lesions (OBL, n = 18), and other malignant lesions (OML, n = 19) - were evaluated in 69 dogs. Five of the observed qualitative CT features resulted to be statistically significant in the distinction between the 4 categories: surface, appearance, lymph-node appearance, capsule formation, and homogeneity of contrast medium distribution. Three of the observed quantitative CT features were significantly different between the 4 categories: the Hounsfield Units (HU) of the radiologically normal liver parenchyma during the pre-contrast scan, the maximum dimension, and the ellipsoid volume of the lesion. Using the machine learning-based decision tree, it was possible to correctly classify NHs, OBLs, HCCs, and OMLs with an accuracy of 0.74, 0.88, 0.87, and 0.75, respectively. The developed decision tree could be an easy-to-use tool to predict the histotype of different FLLs in dogs. Cytology and histology are necessary to obtain the final diagnosis of the lesions.Silvia BurtiAlessandro ZottiFederico BonsembianteFederico BonsembianteBarbara ContieroTommaso BanzatoFrontiers Media S.A.articledecision treeHCC (hepatic cellular carcinoma)contrast - enhanced CTcomputed tomographyfocal liver lesionVeterinary medicineSF600-1100ENFrontiers in Veterinary Science, Vol 8 (2021) |
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decision tree HCC (hepatic cellular carcinoma) contrast - enhanced CT computed tomography focal liver lesion Veterinary medicine SF600-1100 |
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decision tree HCC (hepatic cellular carcinoma) contrast - enhanced CT computed tomography focal liver lesion Veterinary medicine SF600-1100 Silvia Burti Alessandro Zotti Federico Bonsembiante Federico Bonsembiante Barbara Contiero Tommaso Banzato Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases |
description |
To describe the computed tomographic (CT) features of focal liver lesions (FLLs) in dogs, that could enable predicting lesion histotype. Dogs diagnosed with FLLs through both CT and cytopathology and/or histopathology were retrospectively collected. Ten qualitative and 6 quantitative CT features have been described for each case. Lastly, a machine learning-based decision tree was developed to predict the lesion histotype. Four categories of FLLs - hepatocellular carcinoma (HCC, n = 13), nodular hyperplasia (NH, n = 19), other benign lesions (OBL, n = 18), and other malignant lesions (OML, n = 19) - were evaluated in 69 dogs. Five of the observed qualitative CT features resulted to be statistically significant in the distinction between the 4 categories: surface, appearance, lymph-node appearance, capsule formation, and homogeneity of contrast medium distribution. Three of the observed quantitative CT features were significantly different between the 4 categories: the Hounsfield Units (HU) of the radiologically normal liver parenchyma during the pre-contrast scan, the maximum dimension, and the ellipsoid volume of the lesion. Using the machine learning-based decision tree, it was possible to correctly classify NHs, OBLs, HCCs, and OMLs with an accuracy of 0.74, 0.88, 0.87, and 0.75, respectively. The developed decision tree could be an easy-to-use tool to predict the histotype of different FLLs in dogs. Cytology and histology are necessary to obtain the final diagnosis of the lesions. |
format |
article |
author |
Silvia Burti Alessandro Zotti Federico Bonsembiante Federico Bonsembiante Barbara Contiero Tommaso Banzato |
author_facet |
Silvia Burti Alessandro Zotti Federico Bonsembiante Federico Bonsembiante Barbara Contiero Tommaso Banzato |
author_sort |
Silvia Burti |
title |
Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases |
title_short |
Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases |
title_full |
Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases |
title_fullStr |
Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases |
title_full_unstemmed |
Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases |
title_sort |
diagnostic accuracy of delayed phase post contrast computed tomographic images in the diagnosis of focal liver lesions in dogs: 69 cases |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doaj.org/article/12100bb9ad45403bba60a2b7481b747b |
work_keys_str_mv |
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