Peer-reviewed veterinary case report
Ultrasound kidney thickness to aorta ratio in dogs with kidney disease
By Choo, Donghyeok et al.·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·2023·VIP Animal Medical Center, South Korea·View original on PubMed →
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Original publication title: Ultrasonographic quantitative evaluation of acute and chronic renal disease using the renal cortical thickness to aorta ratio in dogs.
- Species:
- dog
Plain-English summary
A group of dogs with kidney disease, both acute and chronic, were studied to see how their kidney size compared to healthy dogs. Researchers measured the thickness of the kidney cortex and compared it to the size of the abdominal aorta. They found that dogs with chronic kidney disease had a lower ratio than healthy dogs, while those with acute kidney injury had a higher ratio. This suggests that measuring this ratio could help veterinarians assess kidney health without invasive procedures.
People also search for: dog kidney disease symptoms · chronic kidney disease in dogs · acute kidney injury treatment for dogs
Abstract
The renal cortical thickness (RCT) has been correlated with renal function. Previous studies have also reported that the RCT:Abdominal aorta(Ao) ratio is constant in normal dogs with various physical factors. This multi-center, retrospective, analytical study aimed to determine if there are differences between actual RCT and predicted value of RCT considering physical factors in dogs with acute or chronic renal disease. We also aimed to demonstrate whether the RCT and Ao ratio index would be useful for evaluating renal pathology. A total of 54 dogs with acute or chronic renal disease and 30 normal healthy dogs were included in this study. The RCT was measured at the center of the renal pyramid as the shortest distance perpendicular to the renal capsule from the base of the renal medullary pyramid at three points. The diameter of the Ao was measured just caudal to the branch of the left renal artery in the sagittal plane in systole. The RCT:Ao ratio of chronic kidney disease (CKD) patients was 0.50 ± 0.11 (mean ± standard deviation). The RCT:Ao ratio in normal dogs was 0.67 ± 0.07. The RCT:Ao ratio in patients with acute kidney injury (AKI) was 0.83 ± 0.05. There was a statistically significant difference between normal dogs and dogs with CKD (P < 0.001) and between normal dogs and dogs with AKI (P < 0.001). In conclusion, findings from the current study supported using the RCT:Ao ratio as a non-invasive quantitative method for characterizing kidney pathology in dogs with acute or chronic renal disease.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/36049077/