Ultrasonic hyperthermia for animal tumor treatment: CT assessment.

The effect of cancer treatment by ultrasound-induced hyperthermia in domestic pets was evaluated by computed tomography (CT) regarding changes in tumor volume and x-ray attenuation after intravenous contrast material. CT scanning is more accurate in measuring tumor volume than estimates after surface measurements. A decrease inn tumor volume and x-ray attenuation after contrast medium seems to be a valuable index of tumor response to hyperthermia.