Abstract: A system for monitoring an ablation therapy may include an ultrasound transmitter to transmit ultrasound signals through a region of tissue during an ablation procedure, an ultrasound receiver to receive the ultrasound signals after the ultrasound signals have passed through the region of tissue, and a signal processor to communicate with the ultrasound transmitter and the ultrasound receiver to obtain a set of measurements related to the ultrasound signals transmitted through the region of tissue during the ablation procedure. The signal processor may determine one or more acoustic characteristics of the ultrasound signals transmitted through the region of tissue based on the set of measurements and generate an image representing a thermal map of the region of tissue during the ablation procedure based on a mapping between the one or more acoustic characteristics of the ultrasound signals and changes in temperature.