Compatible system and method for synchronized working of magnetic resonance imaging and focused ultrasound thermal ablation

A compatible system for synchronized working of magnetic resonance imaging and focused ultrasound thermal ablation, comprising a magnetic resonance device and a focused ultrasound device, wherein the system further comprises a signal collector and a control circuit connected to the signal collector;

• and
• in an imaging process of the magnetic resonance device, the signal collector is configured to detect a radio frequency (RF) signal of the magnetic resonance device, and the control circuit is configured for recording a trigger time of the RF signal, generating an enable signal triggering the focused ultrasound device to start heating based on the trigger time of the RF signal, and controlling a heating duration of the focused ultrasound device according to an echo time;
• wherein the generating the enable signal triggering the focused ultrasound device to start working based on the trigger time of the RF signal comprises:
• calculating an error value between a trigger time difference and a time of repetition (TR) cycle according to the trigger time difference between a current trigger time of the RF signal and an adjacent last trigger time of the RF signal, and determining whether the error value is less than a set threshold value;
• in response to the error value being less than the set threshold value, generating the enable signal at the current trigger time of the RF signal;
• and
• in response to the error value being not less than the set threshold value, deleting the current trigger time of the RF signal.