By investment in ultrasound we have been able to greatly decrease the amount of surgical intervention to pursue a diagnosis. Many pets have benefited from this ability. We have been able to diagnose pregnancy and give accurate estimates of the anticipated birth date. We have diagnosed tumours of the spleen and liver without exploratory surgery. We have even diagnosed the presence of fluid filling the sac around a dog’s heart, and then been able to remove the fluid allowing the heart to function normally again. None of these would have been possible without this sophisticated equipment.