1
|
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.
Collapse
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
| |
Collapse
|