We use thyroid scans to determine whether or not a cat is in fact hyperthyroid before proceeding with I-131 treatment. Below are thyroid scan images from two different cats, one who was positive for feline hyperthyroidism, the other negative. Without looking at the second picture below, can you tell the difference between the positive and negative images? (Click on each to view full-size versions.)

Here is the answer:

Other Posts

Free Download: VICSD Guide to Advanced Imaging
Food for thought on the new iodine-restricted diet for feline hyperthyroidism
I-131 Therapy CE Seminar Presentation
Real-Time Ultrasound is now streaming!
3-D CT & MRI Videos
Abdominal Ultrasound CE Seminar Presentations
DICOM CE Seminar Presentation