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Brody A, Crooks JC, French JM, Lang LG, Randall EK, Griffin LR. Staging canine patients with appendicular osteosarcoma utilizing fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography compared to whole body computed tomography. Vet Comp Oncol 2022; 20:541-550. [PMID: 35166445 DOI: 10.1111/vco.12805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/21/2022] [Accepted: 02/10/2022] [Indexed: 11/30/2022]
Abstract
Few studies have investigated the diagnostic performance of fluorine-18-fluorodeoxyglucose (18 F-FDG) positron emission tomography/computed tomography (PET/CT) for staging veterinary patients with appendicular osteosarcoma. The purpose of this study was to evaluate the efficacy of 18 F-FDG-PET/CT compared to whole-body CT (WBCT) for staging canine patients with appendicular osteosarcoma. The 18 F-FDG-PET/CT imaging studies of 66 dogs with appendicular osteosarcoma were anonymized and separated into two detached studies (one with whole body pre- and post-contrast CT images and the other with the whole body pre- and post-contrast CT images with the associated 18 F-FDG-PET overlay). Image assessment was performed retrospectively by five board-certified veterinary radiologists. The radiologists were instructed to assign a predefined categorical score to each pre-designated anatomic region based on a devised lesional scoring system. A score of 1 was normal, 2 abnormal but not neoplastic, 3 abnormal and concerning for neoplasia, and 4 abnormal, most likely neoplastic. Overall, the likelihood of detection of '3 or 4' was found to be significantly higher with 18 F-FDG PET/CT when compared to WBCT after adjusting for the effect of evaluator and the subject. Most significantly, 13 osseous lesions concerning for metastasis (scored 3-4) were identified in 10/66 dogs by at least one reviewer on 18 F-FDG PET/CT, which were not identified by any reviewer on WBCT. Additionally, four comorbid neoplastic lesions were identified with 18 F-FDG PET/CT and not with WBCT. The results of this study suggest that 18 F-FDG PET/CT is more efficacious in detecting metastatic and comorbid neoplastic lesions compared to WBCT in dogs with appendicular osteosarcoma. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ariel Brody
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Veterinary Teaching Hospital, 300 West Drake Road, Fort Collins, CO, 80523 (Brody, Crooks, Lang, Randall, Griffin). Antech Imaging Services, 17620 Mt Herrmann St. Fountain Valley, California 92708, (French) United States
| | - J Clifton Crooks
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Veterinary Teaching Hospital, 300 West Drake Road, Fort Collins, CO, 80523 (Brody, Crooks, Lang, Randall, Griffin). Antech Imaging Services, 17620 Mt Herrmann St. Fountain Valley, California 92708, (French) United States
| | - John M French
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Veterinary Teaching Hospital, 300 West Drake Road, Fort Collins, CO, 80523 (Brody, Crooks, Lang, Randall, Griffin). Antech Imaging Services, 17620 Mt Herrmann St. Fountain Valley, California 92708, (French) United States
| | - Linda G Lang
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Veterinary Teaching Hospital, 300 West Drake Road, Fort Collins, CO, 80523 (Brody, Crooks, Lang, Randall, Griffin). Antech Imaging Services, 17620 Mt Herrmann St. Fountain Valley, California 92708, (French) United States
| | - Elissa K Randall
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Veterinary Teaching Hospital, 300 West Drake Road, Fort Collins, CO, 80523 (Brody, Crooks, Lang, Randall, Griffin). Antech Imaging Services, 17620 Mt Herrmann St. Fountain Valley, California 92708, (French) United States
| | - Lynn R Griffin
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Veterinary Teaching Hospital, 300 West Drake Road, Fort Collins, CO, 80523 (Brody, Crooks, Lang, Randall, Griffin). Antech Imaging Services, 17620 Mt Herrmann St. Fountain Valley, California 92708, (French) United States
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2
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Osathanon R, Lamb CR, Church DB. Associations between respiratory signs, thoracic CT findings and results of tracheobronchoscopy and bronchoalveolar lavage in dogs. Vet Rec 2022; 191:e1385. [PMID: 35092696 DOI: 10.1002/vetr.1385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/20/2021] [Accepted: 01/06/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Several diagnostic techniques are used in dogs with signs of respiratory disease. The aims of the present study are to estimate the relative sensitivities and associations between the results of diagnostic tests in dogs with respiratory conditions. METHOD A retrospective cross-sectional study of dogs referred for investigation of respiratory signs. Associations between clinical signs, thoracic CT findings, tracheobronchoscopic findings, cytology results and bacterial culture results were tested using binary logistic regression. RESULTS One hundred and thirty-three dogs were included. Abnormalities were detected by cytology, tracheobronchoscopy, CT and bacterial culture in 91%, 88%, 80% and 25% cases, respectively. There were associations between cough and bronchial lesions on thoracic CT (odds ratio [OR] 2.6, 95% confidence interval [CI] 1.1-6.4, p = 0.037), and between cough and neutrophilic inflammation on cytology (OR 4.5, 95% CI 1.3-15.8, p = 0.020). Bronchial foreign body at bronchoscopy was associated with pulmonary consolidation on CT (OR 8.0, 95% CI 1.6-41.7, p = 0.013) and with positive bacterial culture (OR 10.9, 95% CI 2.1-57.0, p = 0.005). In dogs with normal thoracic CT, abnormalities were detected by cytology, tracheobronchoscopy and bacterial culture in 89%, 77% and 23% cases, respectively. CONCLUSION Airway cytology and tracheobronchoscopy provided useful information for diagnosis in many dogs with respiratory signs that had a normal thoracic CT.
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Affiliation(s)
- Rungrote Osathanon
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield, Hertfordshire, UK.,Department of Clinical Science and Public Health, Faculty of Veterinary Science, Mahidol University, Salaya, Phutthamonthon, Nakorn Pathom, Thailand
| | - Christopher R Lamb
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield, Hertfordshire, UK
| | - David B Church
- Department of Clinical Science and Services, Royal Veterinary College, Hatfield, Hertfordshire, UK
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3
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Wright LV, Renwick M, Soh RWY, Fan NR, Tebb AJ, Indrawirawan YH. Outcomes and Blood Product Use in 89 Surgically Managed and 79 Medically Managed Cases of Acute Spontaneous Hemoperitoneum in the Dog. Front Vet Sci 2021; 8:736329. [PMID: 34692810 PMCID: PMC8531209 DOI: 10.3389/fvets.2021.736329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/10/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: To describe a population of dogs with acute spontaneous hemoperitoneum (ASH) that were treated with either surgical or medical management in the first 12 h after presentation, and to perform a preliminary investigation into whether there were differences in achieving cardiovascular stabilization or patterns of red blood cell (RBC) transfusion between patients treated with early (<12 h) surgery vs.medical management. Design: A retrospective multicenter preliminary study performed on 168 dogs presenting with ASH between January 2015 and May 2019. Patients were excluded if they were euthanized or discharged from hospital within the first 12 h, or if clinical records were incomplete. All patients received appropriate medical stabilization efforts. Statistical analysis was performed comparing patients that underwent early (<12 h) surgery and those that did not. Results: Eighty-nine patients were in the early surgical group and 79 patients in the medical group. A significantly higher proportion of medical cases were euthanized (p < 0.001). A significantly higher proportion of early surgical cases were discharged from hospital (p = 0.005). There was no statistically significant difference between groups in achieving cardiovascular stabilization (OR 1.07 p = 0.82). A higher proportion of patients with body-weight over 20 kg achieved stabilization within 12 h than those with body-weight of 20 kg or less (62.7 vs. 41.4%, p < 0.01). A higher proportion of patients with splenic conditions achieved stabilization than patients with non-splenic conditions (56.5 vs. 28.6%, p = 0.05). The odds of receiving an RBC transfusion were higher in the early surgical group than the medical group [OR 3.81 (p < 0.001)]. Conclusions: This preliminary study did not identify a significant difference in the ability to achieve cardiovascular stabilization in the first 12 h in dogs with ASH that underwent early surgical intervention vs. those managed medically. Patients in the early surgical group were more likely to receive a RBC transfusion than those in the medical group. At this time the decision on whether to pursue medical or early surgical management should be made on a case by case basis.
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Affiliation(s)
- Leah Veronica Wright
- Emergency and Critical Care Department, Veterinary Referral Hospital, Melbourne, VIC, Australia
| | - Michelle Renwick
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Rachel W. Y. Soh
- Emergency and Critical Care Department, The University of Sydney, Darlington, NSW, Australia
| | - Nicole R. Fan
- Emergency and Critical Care Department, Sydney Veterinary Emergency and Specialists, Sydney, NSW, Australia
| | - Anna J. Tebb
- Small Animal Medicine Department, Western Australian Veterinary Emergency and Specialty, Perth, WA, Australia
| | - Yenny H. Indrawirawan
- Emergency and Critical Care Department, Veterinary Referral Hospital, Melbourne, VIC, Australia
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4
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Chibuk J, Flory A, Kruglyak KM, Leibman N, Nahama A, Dharajiya N, van den Boom D, Jensen TJ, Friedman JS, Shen MR, Clemente-Vicario F, Chorny I, Tynan JA, Lytle KM, Holtvoigt LE, Murtaza M, Diaz LA, Tsui DWY, Grosu DS. Horizons in Veterinary Precision Oncology: Fundamentals of Cancer Genomics and Applications of Liquid Biopsy for the Detection, Characterization, and Management of Cancer in Dogs. Front Vet Sci 2021; 8:664718. [PMID: 33834049 PMCID: PMC8021921 DOI: 10.3389/fvets.2021.664718] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 02/23/2021] [Indexed: 12/14/2022] Open
Abstract
Cancer is the leading cause of death in dogs, in part because many cases are identified at an advanced stage when clinical signs have developed, and prognosis is poor. Increased understanding of cancer as a disease of the genome has led to the introduction of liquid biopsy testing, allowing for detection of genomic alterations in cell-free DNA fragments in blood to facilitate earlier detection, characterization, and management of cancer through non-invasive means. Recent discoveries in the areas of genomics and oncology have provided a deeper understanding of the molecular origins and evolution of cancer, and of the "one health" similarities between humans and dogs that underlie the field of comparative oncology. These discoveries, combined with technological advances in DNA profiling, are shifting the paradigm for cancer diagnosis toward earlier detection with the goal of improving outcomes. Liquid biopsy testing has already revolutionized the way cancer is managed in human medicine - and it is poised to make a similar impact in veterinary medicine. Multiple clinical use cases for liquid biopsy are emerging, including screening, aid in diagnosis, targeted treatment selection, treatment response monitoring, minimal residual disease detection, and recurrence monitoring. This review article highlights key scientific advances in genomics and their relevance for veterinary oncology, with the goal of providing a foundational introduction to this important topic for veterinarians. As these technologies migrate from human medicine into veterinary medicine, improved awareness and understanding will facilitate their rapid adoption, for the benefit of veterinary patients.
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Affiliation(s)
| | | | | | - Nicole Leibman
- The Cancer Institute, Animal Medical Center, New York, NY, United States
| | | | | | | | | | | | - M. Richard Shen
- RS Technology Ventures LLC., Rancho Santa Fe, CA, United States
| | | | | | | | | | | | - Muhammed Murtaza
- Department of Surgery and Center for Human Genomics and Precision Medicine, University of Wisconsin-Madison, Madison, WI, United States
| | - Luis A. Diaz
- Division of Solid Tumor Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, United States
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5
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Giannasi C, Rushton S, Rook A, Steen NVD, Venier F, Ward PT, Bell R, Trevail T, Lamb V, Eiras A, Ellis J, Roberts E. Canine thyroid carcinoma prognosis following the utilisation of computed tomography assisted staging. Vet Rec 2021; 189:e55. [PMID: 34241838 DOI: 10.1002/vetr.55] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/09/2020] [Accepted: 12/03/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND Metastatic disease is frequently present at the time of diagnosis of canine thyroid carcinoma; however, utilisation of computed tomography (CT) alone for staging pre-treatment has been rarely reported in the veterinary literature. METHODS The aims of this retrospective study were to stage affected dogs using CT findings of the cervical and thoracic regions, combined with histopathology/cytology results, in order to assess whether metastatic disease/WHO staging was of prognostic significance. RESULTS Fifty-eight dogs were included in the study. Classification of cases into WHO stages I, II, III and IV were 10%, 50%, 9% and 31%, respectively. No statistically significant effect of WHO stage classification on overall survival/follow-up time was found (P = .576). Surgery resulted in a statistically significant increase in overall survival/follow-up time (P < .01). There was no statistically significant effect on overall survival/follow-up time in dogs that received medical therapy, either as sole therapy or as an adjunctive post-surgery (P = .198). CONCLUSION In summary, this study documents the metastatic rate of canine thyroid carcinoma using CT for staging pre-treatment. Staging utilising CT revealed a higher distant metastatic rate in dogs with thyroid carcinoma when compared to historical studies using different imaging techniques. As long-term outcomes are possible for cases with advanced disease, surgical intervention could still be considered.
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Affiliation(s)
- Chiara Giannasi
- Internal Medicine Department, Cave Veterinary Specialists, West Buckland, UK.,Internal Medicine Department, Wear Referrals, Veterinary Hospital, Bradbury, Stockton-on-Tees, UK
| | - Steven Rushton
- Biological Modelling, School of Natural and Environmental Sciences, University of Newcastle, Newcastle upon Tyne, UK
| | - Alice Rook
- Internal Medicine Department, Cave Veterinary Specialists, West Buckland, UK
| | - Nele Van Den Steen
- Internal Medicine Department, Cave Veterinary Specialists, West Buckland, UK
| | - Francesca Venier
- Internal Medicine Department, Small Animal Hospital, University of Glasgow, Glasgow, UK.,Internal Medicine Department, NorthWest Veterinary Specialists, Sutton Weaver, Runcorn, UK
| | - Patricia Trish Ward
- Internal Medicine Department, Small Animal Hospital, University of Glasgow, Glasgow, UK
| | - Rory Bell
- Internal Medicine Department, Wear Referrals, Veterinary Hospital, Bradbury, Stockton-on-Tees, UK.,Internal Medicine Department, Swift Referrals, Wetherby, West Yorkshire, UK
| | - Tim Trevail
- Diagnostic Imaging, Department, Southern Counties Veterinary Specialists, Ringwood, Hampshire, UK
| | - Valerie Lamb
- Internal Medicine Department, Southern Counties Veterinary Specialists, Ringwood, Hampshire, UK
| | - Aldara Eiras
- Internal Medicine Department, Dick White Referrals, Six Mile Bottom, Cambridgeshire, UK
| | - Jenny Ellis
- Internal Medicine Department, Dick White Referrals, Six Mile Bottom, Cambridgeshire, UK.,Internal Medicine Department, Western Australian Veterinary Emergency & Speciality, Success, UK
| | - Emma Roberts
- Internal Medicine Department, Cave Veterinary Specialists, West Buckland, UK.,Internal Medicine Department, Highcroft Veterinary Referrals, Whitchurch, Bristol, UK
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6
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Rose RJ, Worley DR. A Contemporary Retrospective Study of Survival in Dogs With Primary Lung Tumors: 40 Cases (2005-2017). Front Vet Sci 2020; 7:519703. [PMID: 33195509 PMCID: PMC7645112 DOI: 10.3389/fvets.2020.519703] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 09/16/2020] [Indexed: 12/18/2022] Open
Abstract
Objective: To report the median survival time in a contemporary cohort of dogs with primary lung tumors and intrathoracic nodal metastasis. Design: Retrospective Case Series. Animals (or sample): Dogs with primary lung tumors treated with lung lobectomy and lymph node biopsy. Procedures: The medical record database at Colorado State University was queried for dogs with primary lung tumors from January 1, 2005 to December 31, 2017. Patients were identified for inclusion if they had lung lobectomy and an intrathoracic lymph node biopsy performed. The median survival time (MST) for lymph node positive (LN+) and negative dogs (LN–) was calculated as well as the MST in dogs that did or did not receive adjuvant chemotherapy. Differences were compared between groups with significance set at p < 0.05. Results: The MST in LN+ dogs (n = 11) was 167 days which was not statistically different from LN– dogs (n = 29) at 456 days (p = 0.2407). No significant difference in the MST in LN+ dogs was identified between dogs that received adjuvant chemotherapy (n = 4; 110 days) and those that did not receive adjuvant chemotherapy (n = 6; 125 days) (p = 0.4409). There was no difference in survival time in LN– dogs receiving chemotherapy (n = 12; 335 days) as compared to those LN– dogs (n = 10) that did not receive adjuvant chemotherapy (258.5 days; p = 0.6475). Conclusions and Clinical Relevance: The survival of primary pulmonary neoplasia in dogs with intrathoracic nodal metastasis is longer than previously reported in this contemporary cohort. Chemotherapy did not appear to improve survival in LN+ or LN– dogs. The combination of tumor size between 100 and 999 cm3 and positive lymph node status significantly reduced survival.
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Affiliation(s)
- Ruth J Rose
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, United States.,Flint Animal Cancer Center, Colorado State University, Fort Collins, CO, United States
| | - Deanna R Worley
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, United States.,Flint Animal Cancer Center, Colorado State University, Fort Collins, CO, United States
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7
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Sellier C, Carabalona J, Hahn H, Dvm EG, Bismuth C. Use of a cavitron ultrasonic surgical aspirator for parenchyma-sparing and complex liver resections in dogs. Vet Surg 2020; 49:800-810. [PMID: 32073180 DOI: 10.1111/vsu.13401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 01/21/2020] [Accepted: 01/25/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To report the clinical use of a cavitron ultrasonic surgical aspirator (CUSA) for the resection of hepatic lesions in dogs. STUDY DESIGN Clinical prospective study. ANIMALS Eleven client-owned dogs. METHODS Dogs requiring a hepatic nodulectomy, segmentectomy, and/or a lobectomy (including complex lobectomies) were enrolled. The number and location of procedures, blood loss, duration of surgery, and short-term complications were recorded. RESULTS Dogs underwent a mean of 2.3 ± 1.1 procedures. All masses were amenable to surgical excision regardless of their location and their relationship with major hepatic vessels. Dogs lost a median of 77 mL of blood (9.9-161), which corresponded to 4.3% of blood volume (0.8%-23.2%). The dog with the highest blood loss survived without requiring transfusion. The median duration of all CUSA procedures was 33.5 minutes (15-82). Short-term outcomes were assessed for the first 15 days, during which two complications were diagnosed. Cholangiohepatitis was diagnosed in one dog and resolved after medical management, and another dog developed necrotic pancreatitis and died. CONCLUSION Liver parenchyma-sparing nodulectomies and segmentectomies and liver lobectomies including complex lobectomies were achieved with a CUSA in all dogs. CLINICAL SIGNIFICANCE Use of a CUSA can be considered as an alternative for the removal of hepatic lesions in dogs.
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Affiliation(s)
- Clément Sellier
- Department of Surgery, Small Animal, Veterinary Hospital Frégis, Arcueil, France
| | - Julien Carabalona
- Department of Surgery, Small Animal, Veterinary Hospital Frégis, Arcueil, France
| | - Harriet Hahn
- Department of Diagnostic Imaging, Small Animal, Veterinary Hospital Frégis, Arcueil, France
| | - Eymeric Gomes Dvm
- Department of Diagnostic Imaging, Small Animal, Veterinary Hospital Frégis, Arcueil, France
| | - Camille Bismuth
- Department of Surgery, Small Animal, Veterinary Hospital Frégis, Arcueil, France
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8
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Iwasaki R, Shimosato Y, Yoshikawa R, Goto S, Yoshida K, Murakami M, Kawabe M, Sakai H, Mori T. Survival analysis in dogs with urinary transitional cell carcinoma that underwent whole-body computed tomography at diagnosis. Vet Comp Oncol 2019; 17:385-393. [PMID: 31012230 DOI: 10.1111/vco.12483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 04/15/2019] [Accepted: 04/16/2019] [Indexed: 12/01/2022]
Abstract
This retrospective study aimed to evaluate factors associated with survival and to compare characteristics between tumour localizations in dogs with urinary transitional cell carcinoma (TCC) that underwent whole-body computed tomography (CT) at diagnosis. Dogs with histologically confirmed TCC that received medical therapy between 2010 and 2017 were included; dogs that underwent surgery or radiotherapy for the primary tumour were excluded. According to the CT findings, primary tumour localization (classified into the Bladder, Urethra and Bladder and Urethra groups), prostate involvement, iliosacral lymphadenomegaly, sternal lymphadenomegaly and metastasis to the bone and lung were evaluated for survival analysis. CT at diagnosis revealed iliosacral lymphadenomegaly, sternal lymphadenomegaly, bone metastasis and lung metastasis in 47.7%, 18.5%, 24.6% and 35.4% of the 65 included dogs, respectively. The overall median survival time was 196 days. On multivariable analysis, TCC localization (hazard ratio [HR], 1.90; P = .037), bone metastasis (HR, 2.76; P = .013) and sternal lymphadenomegaly (HR, 3.56; P = .004) were significantly associated with survival. Compared to the Bladder group (n = 16), the Urethra group (n = 26) had higher metastasis rates to the bone (6.3% vs 42.3%; P = .045) and lung (6.3% vs 46.2%; P = .022). The survival time was shorter in the Urethra group than in the Bladder group (121.5 vs 420 days; P < .001), and it was similar only in female dogs (247 vs 420 days; P = .031). These findings suggest that whole-body CT could be valuable for predicting the prognosis in urinary TCC.
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Affiliation(s)
- Ryota Iwasaki
- Animal Medical Centre, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Yuka Shimosato
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Ryutaro Yoshikawa
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Sho Goto
- Animal Medical Centre, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Kyoko Yoshida
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Mami Murakami
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Mifumi Kawabe
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Hiroki Sakai
- Laboratory of Veterinary Pathology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
| | - Takashi Mori
- Laboratory of Veterinary Clinical Oncology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan
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Lamb CR, Whitlock J, Foster‐Yeow ATL. Prevalence of pulmonary nodules in dogs with malignant neoplasia as determined by CT. Vet Radiol Ultrasound 2019; 60:300-305. [DOI: 10.1111/vru.12723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 12/05/2018] [Accepted: 12/13/2018] [Indexed: 11/30/2022] Open
Affiliation(s)
- Christopher R. Lamb
- Department of Clinical Sciences and ServicesThe Royal Veterinary College Hertfordshire United Kingdom
| | - James Whitlock
- Department of Clinical Sciences and ServicesThe Royal Veterinary College Hertfordshire United Kingdom
| | - Andrew T. L. Foster‐Yeow
- Department of Clinical Sciences and ServicesThe Royal Veterinary College Hertfordshire United Kingdom
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10
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Hans EC, Pinard C, van Nimwegen SA, Kirpensteijn J, Singh A, MacEachern S, Naber S, Dudley RM. Effect of surgical site infection on survival after limb amputation in the curative‐intent treatment of canine appendicular osteosarcoma: a Veterinary Society of Surgical Oncology retrospective study. Vet Surg 2018; 47:E88-E96. [DOI: 10.1111/vsu.13105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 03/05/2018] [Accepted: 03/13/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Eric C. Hans
- MedVet Medical and Cancer Center for Pets Worthington Ohio
| | - Chris Pinard
- Ontario Veterinary CollegeUniversity of Guelph Guelph Ontario Canada
| | - S. A. van Nimwegen
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary MedicineUtrecht University Utrecht The Netherlands
| | - Jolle Kirpensteijn
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary MedicineUtrecht University Utrecht The Netherlands
| | - Ameet Singh
- Department of Clinical Studies, Ontario Veterinary CollegeUniversity of Guelph Guelph Ontario Canada
| | | | - Steven Naber
- Department of StatisticsThe Ohio State University Columbus Ohio
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11
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Magestro LM, Gieger TL. Detection of synchronous primary tumours and previously undetected metastases in 736 dogs with neoplasia undergoing CT scans for diagnostic, staging and/or radiation treatment planning purposes. Vet Comp Oncol 2016; 15:576-581. [PMID: 27135757 DOI: 10.1111/vco.12201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 11/02/2015] [Accepted: 11/02/2015] [Indexed: 11/28/2022]
Abstract
The purpose of our study was to describe synchronous primary tumours and previously undetected metastases in 736 dogs with confirmed neoplasia in which computed tomography (CT) scans were performed for diagnostic, staging and/or radiation treatment planning purposes. All CTs were reviewed by a radiologist. Tumour-associated CT abnormalities were detected in 38/736 (5%), including confirmed or suspected synchronous primary neoplasms (n = 24), metastases of the primary tumour (n = 9) or both (n = 3). In lymph nodes (LN) that were considered abnormal on CT scan and were aspirated, 23% contained metastasis, and 6% of 'normal' appearing LN that were aspirated contained metastasis. Thorough evaluation of CTs and routine aspiration of regional LN are critical because results affect recommendations to perform additional staging tests and treatment for the primary and secondary tumour(s).
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Affiliation(s)
- L M Magestro
- Department of Clinical Sciences (College of Veterinary Medicine) and Comparative Medicine Institute, North Carolina, State University, Raleigh, NC, 27607, USA
| | - T L Gieger
- Department of Clinical Sciences (College of Veterinary Medicine) and Comparative Medicine Institute, North Carolina, State University, Raleigh, NC, 27607, USA
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12
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Hughes KJ, Laidlaw EH, Reed SM, Keen J, Abbott JB, Trevail T, Hammond G, Parkin TDH, Love S. Repeatability and intra- and inter-observer agreement of cervical vertebral sagittal diameter ratios in horses with neurological disease. J Vet Intern Med 2016; 28:1860-70. [PMID: 25410955 PMCID: PMC4895627 DOI: 10.1111/jvim.12431] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/22/2014] [Accepted: 07/09/2014] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Sagittal ratio values (SRVs) of cervical vertebrae are used for ante-mortem diagnosis of cervical vertebral stenotic myelopathy, but intraobserver and interobserver variability in measurement may influence radiographic interpretation of vertebral stenosis in horses with neurological disease. OBJECTIVES To determine intraobserver repeatability in SRVs, intra- and interobserver agreement in SRVs and whether or not agreement was influenced by animal age. ANIMALS Forty-two horses (>1 year old) with neurological disease from which laterolateral computed radiographic images of C2-C7 were obtained. METHODS Four observers made measurements from C2 to C7 for each horse and interobserver agreement for intra- and intervertebral SRVs was determined using Bland-Altman analysis (acceptable agreement: limits of agreement [LOA] ≤ 0.05) on all horses and those ≤3 (n = 25) and >3 (n = 17) years old. Each observer also made repeated measurements for 10 horses and intraobserver repeatability and agreement were determined. RESULTS Adequate intraobserver repeatability was achieved for 6 sites. Within observers, paired measurements had a median difference ≤5.7%, but a large range in differences often occurred, most frequently at intervertebral sites. For C5, C6, C7, and C3-4, LOA ≤ 0.05 were achieved by at least 1 observer. With the exception of C5 for 1 pair, LOA were >0.05 for interobserver agreement, regardless of animal age. LOA were largest at intervertebral sites. CONCLUSIONS AND CLINICAL IMPORTANCE Within and between observers, measurement error may limit the diagnostic accuracy of SRVs and result in discrepancies of diagnosis and treatment and warrants consideration when used clinically in horses with neurological disease.
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Affiliation(s)
- K J Hughes
- Weipers Centre for Equine Welfare, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK; School of Animal and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW, Australia
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Adhesion Pulmonary Nodules Detection Based on Dot-Filter and Extracting Centerline Algorithm. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2015; 2015:597313. [PMID: 26089968 PMCID: PMC4452339 DOI: 10.1155/2015/597313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 08/26/2014] [Accepted: 09/13/2014] [Indexed: 01/15/2023]
Abstract
A suspected pulmonary nodule detection method was proposed based on dot-filter and extracting centerline algorithm. In this paper, we focus on the distinguishing adhesion pulmonary nodules attached to vessels in two-dimensional (2D) lung computed tomography (CT) images. Firstly, the dot-filter based on Hessian matrix was constructed to enhance the circular area of the pulmonary CT images, which enhanced the circular suspected pulmonary nodule and suppresses the line-like areas. Secondly, to detect the nondistinguishable attached pulmonary nodules by the dot-filter, an algorithm based on extracting centerline was developed to enhance the circle area formed by the end or head of the vessels including the intersection of the lines. 20 sets of CT images were used in the experiments. In addition, 20 true/false nodules extracted were used to test the function of classifier. The experimental results show that the method based on dot-filter and extracting centerline algorithm can detect the attached pulmonary nodules accurately, which is a basis for further studies on the pulmonary nodule detection and diagnose.
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