The study looked at different ways to diagnose lower urinary tract diseases in cats, using x-rays, ultrasounds, and contrast imaging. They found that ultrasound is good for evaluating these diseases, but x-rays and contrast imaging are also helpful for diagnosing certain conditions like urinary stones and chronic inflammation that may not be clear on ultrasound alone. The researchers identified various urinary tract issues in cats, such as cystitis, urinary crystals, bladder stones, polyps, and blood clots. They concluded that a combination of imaging techniques is best for diagnosing and treating these conditions in cats.