Article (Scientific journals)
Dynamic contrast-enhanced computed tomography in dogs with nasal tumors.
Mortier, Jérémy; Maddox, Thomas W; Blackwood, Laura et al.
2023In Journal of Veterinary Internal Medicine, 37 (3), p. 1146 - 1154
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Keywords :
DCECT; dogs; nasal tumor; perfusion CT; radiotherapy; Dogs; Animals; Prospective Studies; Cross-Sectional Studies; Tomography, X-Ray Computed/veterinary; Tomography, X-Ray Computed/methods; Nose Neoplasms/diagnostic imaging; Nose Neoplasms/veterinary; Carcinoma/veterinary; Sarcoma/diagnostic imaging; Sarcoma/veterinary; Adenocarcinoma/veterinary; Dog Diseases/diagnostic imaging; Adenocarcinoma; Carcinoma; Dog Diseases; Nose Neoplasms; Sarcoma; Tomography, X-Ray Computed; Veterinary (all); General Veterinary
Abstract :
[en] [en] BACKGROUND: Treatment of nasal tumors in dogs is associated with high morbidity and reliable prognostic factors are lacking. Dynamic contrast-enhanced computed tomography (DCECT) can be used to assess tumor perfusion. OBJECTIVES: To assess perfusion parameters of nasal tumors (correlating with tumor type) before and during radiotherapy (RT) and find potential correlation with survival. ANIMALS: Twenty-four client-owned dogs with nasal tumors, including 16 epithelial tumors and 8 sarcomas. METHODS: Prospective cross-sectional study. All dogs had baseline DCECT to assess fractional vascular volume (BV), blood flow (BF), and transit time (TT). Thirteen dogs had repeat DCECT after 12 Gy of megavoltage RT. Survival times were calculated. RESULTS: Median BV was 17.83 mL/100 g (range, 3.63-66.02), median BF was 122.63 mL/100 g/minute (range, 23.65-279.99), and median TT was 8.91 seconds (range, 4.57-14.23). Sarcomas had a significantly lower BF than adenocarcinomas (P = .002), carcinomas (P = .01), and other carcinomas (P = .001), and significantly lower BV than adenocarcinomas (P = .03) and other carcinomas (P = .004). Significant associations were found between epithelial tumors and sarcoma for change in tumor volume (P = .01), width (P = .004), and length (P = .02) in that epithelial tumors decreased in volume whereas sarcomas increased in volume. Perfusion parameters were not correlated with survival. CONCLUSIONS AND CLINICAL IMPORTANCE: Nasal sarcomas have lower BV and BF than nasal carcinomas, and sarcomas have a lower size reduction than carcinomas early on during RT. Baseline results and changes in perfusion parameters may not be correlated with survival.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Mortier, Jérémy  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) ; Small Animal Teaching Hospital, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom
Maddox, Thomas W;  Small Animal Teaching Hospital, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom
Blackwood, Laura;  Small Animal Teaching Hospital, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, United Kingdom
La Fontaine, Matthew D;  The Netherlands Cancer Institute, Amsterdam, The Netherlands
Busoni, Valeria  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Médecine vétérinaire comparée
Language :
English
Title :
Dynamic contrast-enhanced computed tomography in dogs with nasal tumors.
Publication date :
2023
Journal title :
Journal of Veterinary Internal Medicine
ISSN :
0891-6640
eISSN :
1939-1676
Publisher :
John Wiley and Sons Inc, United States
Volume :
37
Issue :
3
Pages :
1146 - 1154
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ULiège - Université de Liège
Funding number :
FSR2018
Funding text :
Funding provided by a research grant from the Université de Liège. Part of this study was presented at the Congrès d'Imagerie Vétérinaire Francophone 2019 (Bordeaux, France), at the FARAH day 2019 (Liège, Belgium) and at the EAVDI‐BID meeting 2022 (Warwick, UK).
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since 25 December 2023

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