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Ercolin ACM, Uchôa AS, Aires LPN, Gomes DR, Tinto ST, Feliciano GSM, Feliciano MAR. Use of New Ultrasonography Methods for Detecting Neoplasms in Dogs and Cats: A Review. Animals (Basel) 2024; 14:312. [PMID: 38275771 PMCID: PMC10812759 DOI: 10.3390/ani14020312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/27/2024] Open
Abstract
The aim of this literature review was to present the novel imaging modalities elastography and contrast-enhanced ultrasonography. We provided an overview of the concepts and applications of each technique for the investigation of neoplastic and metastatic tumors in dogs and cats. Studies on elastography are based on the elasticity and deformation of the evaluated tissue. The information obtained from the different types of elastography can aid in the detection and differentiation of malignant and benign structures. Descriptions of elastography studies in several organs and tissue in veterinary medicine reported that, in general, malignant tumors tend to be more rigid and, therefore, less deformable than benign lesions or in comparison to the healthy parenchyma. Contrast-enhanced ultrasonography is based on the intravenous injection of contrast media constituted by microbubbles. This imaging modality can be performed in nonsedated animals and provides information on the tissue perfusion, allowing the investigation of macro- and micro-circulation. Studies on different organs and tissues were performed in dogs and cats and revealed a tendency of malignant tumors to present faster transit of the contrast media (time to wash-in, peak and wash-out). These advanced techniques can be associated with other imaging modalities, aiding important information to the well-established exams of B-mode and Doppler ultrasonography. They can be used as screening tests, potentially representing an alternative to the invasive sampling methods required for cytological and histopathological analysis.
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Affiliation(s)
- Anna Carolina Mazeto Ercolin
- Laboratory of Veterinary, Faculty of Animal Science and Food Engineering, Sao Paulo University, Sao Paulo 13635-900, Brazil; (A.C.M.E.); (A.S.U.); (D.R.G.); (S.T.T.); (G.S.M.F.)
| | - Alex Silveira Uchôa
- Laboratory of Veterinary, Faculty of Animal Science and Food Engineering, Sao Paulo University, Sao Paulo 13635-900, Brazil; (A.C.M.E.); (A.S.U.); (D.R.G.); (S.T.T.); (G.S.M.F.)
| | - Luiz Paulo Nogueira Aires
- Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinarian Sciences, Sao Paulo State University “Júlio de Mesquita Filho”, Sao Paulo 14884-900, Brazil;
| | - Diego Rodrigues Gomes
- Laboratory of Veterinary, Faculty of Animal Science and Food Engineering, Sao Paulo University, Sao Paulo 13635-900, Brazil; (A.C.M.E.); (A.S.U.); (D.R.G.); (S.T.T.); (G.S.M.F.)
| | - Stefany Tagliatela Tinto
- Laboratory of Veterinary, Faculty of Animal Science and Food Engineering, Sao Paulo University, Sao Paulo 13635-900, Brazil; (A.C.M.E.); (A.S.U.); (D.R.G.); (S.T.T.); (G.S.M.F.)
| | - Giovanna Serpa Maciel Feliciano
- Laboratory of Veterinary, Faculty of Animal Science and Food Engineering, Sao Paulo University, Sao Paulo 13635-900, Brazil; (A.C.M.E.); (A.S.U.); (D.R.G.); (S.T.T.); (G.S.M.F.)
| | - Marcus Antônio Rossi Feliciano
- Laboratory of Veterinary, Faculty of Animal Science and Food Engineering, Sao Paulo University, Sao Paulo 13635-900, Brazil; (A.C.M.E.); (A.S.U.); (D.R.G.); (S.T.T.); (G.S.M.F.)
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Burti S, Zotti A, Rubini G, Orlandi R, Bargellini P, Bonsembiante F, Contiero B, Banzato T. Contrast-enhanced ultrasound features of focal pancreatic lesions in dogs. Vet Rec 2022; 191:e2080. [PMID: 36000675 DOI: 10.1002/vetr.2080] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 06/21/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Contrast-enhanced ultrasound (CEUS) features of pancreatic lesions are poorly reported in veterinary literature. METHODS Qualitative and quantitative features of pancreatic benign (nodular hyperplasia [NH], cyst and abscess) and malignant (adenocarcinoma and insulinoma) lesions during B-mode and CEUS examinations are described in 75 dogs. RESULTS Adenocarcinomas (n = 23) had mixed echogenicity at B-mode, and they were hypoenhancing or non-enhancing at CEUS, with a non-homogeneous and cystic enhancement pattern. Insulinomas (n = 23) appeared as hypoechoic lesions at B-mode, and as hyperenhancing, homogeneous and solid lesions at CEUS. NH (n = 17) had an constant appearance, being hypoechoic at ultrasound (US) and isoenhancing at CEUS. Cysts (n = 7) were all anechoic, with acoustic enhancement clearly detectable at US, but were non-enhancing at CEUS. Lastly, abscesses (n = 5) had mixed echogenicity, and they showed both hyperenhancement and non-enhancement at CEUS. Hypoenhancement and non-homogeneous appearance had a moderate diagnostic accuracy in the detection of adenocarcinomas. In particular, hyperenhancement was evident only in malignant lesions (adenocarcinomas and insulinomas). CONCLUSION CEUS, in combination with B-mode US features, is a valuable tool for distinction of benign and malignant abnormalities of the pancreas and can potentially differentiate insulinomas from adenocarcinomas.
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Affiliation(s)
- Silvia Burti
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
| | - Alessandro Zotti
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
| | | | | | | | - Federico Bonsembiante
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
| | - Barbara Contiero
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
| | - Tommaso Banzato
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
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Gibson EA, Goldman RE, Culp WTN. Comparative Oncology: Management of Hepatic Neoplasia in Humans and Dogs. Vet Sci 2022; 9:vetsci9090489. [PMID: 36136704 PMCID: PMC9505178 DOI: 10.3390/vetsci9090489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Primary hepatic neoplasia is uncommonly reported in dogs. Hepatocellular carcinoma (HCC) is the most frequent neoplasia identified in dogs and considerable effort has been committed towards identifying definitive and palliative treatment options. HCC is well recognized in humans as a sequelae of liver disease such as hepatitis or cirrhosis, while in dogs a similar link has failed to be fully elucidated. Management of HCC in people may be curative or palliative dependent on staging and transplant eligibility. Despite differences in etiology, there is substantial similarity between treatment options for liver neoplasia in human and veterinary medicine. The below summary provides a comparative discussion regarding hepatic neoplasia in dogs and people with a specific focus on HCC. Diagnosis as well as descriptions of the myriad treatment options will be reviewed.
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Affiliation(s)
- Erin A. Gibson
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA
| | - Roger E. Goldman
- Department of Radiology, University of California-Davis Medical Center, Sacramento, CA 95817, USA
| | - William T. N. Culp
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA
- Correspondence:
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Kurokawa S, Tanaka T, Yamazaki H, Noguchi S, Wada Y, Nishida H, Akiyoshi H. Comparing the CT and MRI findings for canine primary hepatocellular lesions. Vet Rec 2021; 190:e1083. [PMID: 34751436 DOI: 10.1002/vetr.1083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 08/24/2021] [Accepted: 10/17/2021] [Indexed: 11/11/2022]
Abstract
BACKGROUND Triple-phase CT and gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA) MRI have been used to differentiate hepatocellular carcinomas (HCCs) in dogs. METHODS This retrospective case series aimed to compare the CT findings with MRI findings of 20 canine hepatocellular lesions, including eight poorly/moderately-differentiated HCCs, eight well-differentiated HCCs and four hyperplasias. CT data were analysed, and the following parameters were noted: vessel enhancement, enhancement pattern in the equilibrium phase, maximal transverse diameter, the lowest enhancement, and the attenuation values of each hepatocellular lesion in the precontrast and triple-phase series, including the arterial phase, portal phase and equilibrium phase. MRI data were analysed, and the following parameters were noted: signal intensities of each hepatocellular lesion on T2-weighted images and T1-weighted images, and signal intensity ratio of the hepatocellular lesions in the hepatobiliary phase. RESULTS In 62.5% of poorly/moderately-differentiated HCC and 75% of well-differentiated HCC, presumptive necrosis was detected on CT and MRI. In the hepatobiliary phase on MRI, the median signal intensity ratio of poorly/moderately-differentiated HCC (0.54 [range: 0.3-0.71]) was significantly lower than that of well-differentiated HCC (0.75 [range: 0.6-0.96]) and hyperplasia (0.79 [range: 071-0.98]; p = 0.02 and p = 0.02, respectively). CONCLUSION Gd-EOB-DTPA-enhanced MRI may be a superior modality for differentiating hepatocellular origin lesions.
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Affiliation(s)
- Shohei Kurokawa
- Department of Graduate School of Life and Environmental Sciences, Laboratory of Veterinary Surgery, Osaka Prefecture University, Izumisano, Japan
| | - Toshiyuki Tanaka
- Department of Graduate School of Life and Environmental Sciences, Laboratory of Veterinary Surgery, Osaka Prefecture University, Izumisano, Japan.,Kinki Animal Medical Training Institute & Veterinary Clinic, Higashiosaka, Japan
| | - Hiroki Yamazaki
- Department of Graduate School of Life and Environmental Sciences, Laboratory of Veterinary Surgery, Osaka Prefecture University, Izumisano, Japan
| | - Shunsuke Noguchi
- Department of Graduate School of Life and Environmental Sciences, Laboratory of Veterinary Radiology, Osaka Prefecture University, Izumisano, Japan
| | - Yusuke Wada
- Veterinary Medical Centre, College of Life, Environmental and Advanced Sciences, Osaka Prefecture University, Izumisano, Japan
| | - Hidetaka Nishida
- Department of Graduate School of Life and Environmental Sciences, Laboratory of Veterinary Surgery, Osaka Prefecture University, Izumisano, Japan
| | - Hideo Akiyoshi
- Department of Graduate School of Life and Environmental Sciences, Laboratory of Veterinary Surgery, Osaka Prefecture University, Izumisano, Japan
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Burti S, Zotti A, Contiero B, Banzato T. Computed tomography features for differentiating malignant and benign focal liver lesions in dogs: A meta-analysis. Vet J 2021; 278:105773. [PMID: 34742915 DOI: 10.1016/j.tvjl.2021.105773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 10/27/2021] [Accepted: 10/27/2021] [Indexed: 10/19/2022]
Abstract
Computed tomography (CT) is often performed to complement ultrasound following detection of focal liver lesions (FLL). There is no consensus in the literature regarding the CT features that might be helpful in the distinction between benign and malignant FLL. The aim of this meta-analysis was to identify, based on the available literature, the qualitative and quantitative CT features able to distinguish between benign and malignant FLL. Studies on the diagnostic accuracy of CT in characterising FLL were searched in MEDLINE, Web of Science, and Scopus databases. Pooled sensitivity, pooled specificity, diagnostic odds ratio (DOR), receiver operator curve (ROC) area, were calculated for qualitative features. DOR were used to determine which qualitative features were most informative to detect malignancy; quantitative features were selected/identified based on standardised mean difference (SMD). Well-defined margins, presence of a capsule, abnormal lymph nodes, and heterogeneity in the arterial, portal and delayed phase were classified as informative qualitative CT features. The pooled sensitivity ranged from 0.630 (abnormal lymph nodes) to 0.786 (well-defined margins), while pooled specificity ranged from 0.643 (well-defined margins) to 0.816 (heterogeneous in delayed phase). Maximum dimensions, ellipsoid volume, attenuation of the liver in the pre-contrast phase, and attenuation of the liver in the arterial, portal, and delayed phase were found to be informative quantitative CT features. Larger maximum dimensions and volume (positive SMD), and lower attenuation values (negative SMD) were more associated with malignancy. This meta-analysis provides the evidence base for the interpreting CT imaging in the characterization of FLL.
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Affiliation(s)
- S Burti
- Department of Animal Medicine, Production and Health, University of Padua, Viale dell'Università 16, 35020 Legnaro, Padua, Italy
| | - A Zotti
- Department of Animal Medicine, Production and Health, University of Padua, Viale dell'Università 16, 35020 Legnaro, Padua, Italy
| | - B Contiero
- Department of Animal Medicine, Production and Health, University of Padua, Viale dell'Università 16, 35020 Legnaro, Padua, Italy
| | - T Banzato
- Department of Animal Medicine, Production and Health, University of Padua, Viale dell'Università 16, 35020 Legnaro, Padua, Italy.
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Burti S, Zotti A, Bonsembiante F, Contiero B, Banzato T. Diagnostic Accuracy of Delayed Phase Post Contrast Computed Tomographic Images in the Diagnosis of Focal Liver Lesions in Dogs: 69 Cases. Front Vet Sci 2021; 8:611556. [PMID: 33748206 PMCID: PMC7969650 DOI: 10.3389/fvets.2021.611556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/08/2021] [Indexed: 11/13/2022] Open
Abstract
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.
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Affiliation(s)
- Silvia Burti
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
| | - Alessandro Zotti
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
| | - Federico Bonsembiante
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy.,Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
| | - Barbara Contiero
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
| | - Tommaso Banzato
- Department of Animal Medicine, Productions and Health, University of Padua, Padua, Italy
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