Tissue harmonic ultrasound for imaging normal abdominal organs in dogs and cats
2003
Matheson, Jodi S. | O'Brien, Robert T. | Delaney, Fern
Normal cats (n= 38) and dogs (n= 40) were imaged with fundamental ultrasound and tissue harmonic ultrasound. Images of the liver, gall bladder, spleen, left kidney, urinary bladder, and jejunum were collected in all animals. Images of the left adrenal gland were collected in all dogs. All normal cats and dogs had improved imaging with tissue harmonic ultrasound. The number of organs with improved conspicuity ranged from one to all organs imaged. The most common organ to have improved conspicuity was the jejunum (100% of dogs and 89% of cats). Significant improvement by tissue harmonic ultrasound was seen in images of gall bladder (p= .05) and left adrenal gland (p= .02) in dogs, and spleen, urinary bladder, and intestinal images (p= .01) in cats. Significant improvement was seen in tissue harmonic ultrasound images of the gall bladder in dogs weighing greater than 16 kilograms (p= .03) and in the images of the urinary bladder of dogs weighing less than 16 kilograms (p= .02). These data suggest that image quality improvement of normal organs using tissue harmonic ultrasound is consistent but not predictable. The exception was the jejunum, where improvement was seen in all dogs. Sonographers should be cognizant of the potential benefits of tissue harmonic ultrasound.
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