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Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition
Published on: June 21, 2024
Diagnosis of urolithiasis
Cathy Langston1, Kelly Gisselman, Douglas Palma
1Animal Medical Center, New York, USA.
Compendium (Yardley, PA)
|October 4, 2008
Summary
Predicting urolithiasis (urinary stone) composition is key for treatment. Signalment, urinalysis, and imaging aid prediction, but chemical analysis is definitive.
Area of Science:
- Veterinary Medicine
- Diagnostic Imaging
- Urology
Background:
- Urolithiasis diagnosis commonly requires imaging.
- Double-contrast cystography offers high accuracy, comparable to ultrasonography.
- Understanding calculus mineral composition guides urolithiasis management.
Purpose of the Study:
- To evaluate the predictability of urolithiasis composition using signalment, imaging, and urinalysis.
- To compare the diagnostic accuracy of different imaging modalities for urolithiasis.
- To provide insights into common urolith compositions in cats and dogs.
Main Methods:
- Review of diagnostic imaging techniques for urolithiasis.
- Analysis of signalment data (species, sex, breed) for predictive value.
- Correlation of imaging and urinalysis findings with confirmed urolith composition.
Main Results:
- Signalment predicts urolith composition with approximately 70% accuracy.
- In cats, bladder stones are 50% struvite and 50% calcium oxalate; kidney and ureter stones are typically calcium oxalate.
- In female dogs, struvite is the most common bladder stone type; breed influences prediction in male dogs.
Conclusions:
- Signalment alone has limitations in predicting canine nephrolith and ureterolith composition.
- Urinalysis and imaging findings assist in predicting urolith composition.
- Definitive diagnosis of urolithiasis composition requires chemical analysis.
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