Journal of Ultrasound in Medicine, Vol 17, Issue 6 349-356, Copyright © 1998 by American Institute of Ultrasound in Medicine
Lack of bioeffects of ultrasound energy after intravenous administration of FS069 (Optison) in the anesthetized rabbit
A. L. Killam, Y. Greener, B. A. McFerran, J. Maniquis, A. Bloom, K. J. Widder and H. C. Dittrich
Molecular Biosystems, Inc., San Diego, California 92121, USA.
The current study was designed to provide a sensitive in vivo model to
maximize the potential bioeffects (measured by hemolysis) of B-mode
ultrasound energy in combination with FS069 (Optison). B-mode ultrasound
energy was delivered to anesthetized male New Zealand white rabbits with a
phased array 5 MHz transducer on a Hewlett-Packard Sonos 1500
ultrasonograph, with transmit level set to maximum (40 dB, approx 135
W/cm2). FS069 (Optison), latex particles in human albumin, or human albumin
alone (vehicle) was infused via an ear vein at 0.6 mL/kg. No statistically
significant changes were noted in serum free hemoglobin or lactate
dehydrogenase either over time or between groups.