Peer-reviewed veterinary case report
First-pass radionuclide angiography in the diagnosis of aortoiliac thromboembolism in a horse.
- Journal:
- Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association
- Year:
- 1997
- Authors:
- Ross, M W et al.
- Affiliation:
- Department of Clinical Studies-New Bolton Center · United States
- Species:
- horse
Plain-English summary
In a study involving a 6-year-old male Standardbred horse, researchers used a special imaging technique called first-pass radionuclide angiography to diagnose a condition known as aortoiliac thromboembolism, which is when a blood clot blocks blood flow in the arteries of the hind legs. This horse had been experiencing ongoing lameness in both hind legs, with the right leg being more affected. The imaging showed a significant decrease in blood flow in the arteries supplying the hind legs, confirming the diagnosis. This method proved effective in identifying the problem and could help in diagnosing similar issues in other horses. The treatment approach based on this diagnosis was successful in addressing the horse's condition.
Abstract
First-pass radionuclide angiography of the terminal aorta was performed in 3 normal horses and a 6-year-old Standardbred intact male with aortoiliac thromboembolism. Thromboembolism caused chronic bilateral hind limb lameness, more severe in the right hind limb, was detected by rectal examination, and confirmed using transrectal ultrasonography. Using 99mTc-HDP, first-pass radionuclide angiography was combined with hind limb and pelvis bone (delayed) scintigraphy and revealed marked reduction in blood flow through both external iliac arteries and absence of blood flow in the internal iliac arteries. Quantitative analysis showed a decreased activity in the right iliac vessels in the clinic patient consistent with reduced blood flow when compared to control horses. First-pass radionuclide angiography provided a method to obtain diagnostic images of the terminal aorta and branches and a method to diagnose aortoiliac thromboembolism in the horse.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/9238795/