Systems and methods for enhancing efficacy of ultrasound treatment

An ultrasound treatment system comprising:

• an ultrasonic probe comprising an ultrasound therapy transducer adapted to apply ultrasonic therapy to tissue;
• and
• an electrical power system configured to provide electrical power to the ultrasound therapy transducer, the electrical power system comprising a power amplifier device and a circuit;
• wherein the power amplifier device comprises at least one semiconductor transistor,
• wherein the at least one semiconductor transistor is a field effect transistor,
• wherein the field effect transistor is configured to operate with an efficiency of at least 75% at a radio frequency (RF) in a range between 200 kHz and 20 MHz.

An ultrasound treatment system comprising:

• an ultrasonic probe comprising an ultrasound therapy transducer adapted to apply ultrasonic therapy to tissue;
• and
• an electrical power system configured to provide electrical power to the ultrasound therapy transducer, the electrical power system comprising a power amplifier device and a circuit;
• wherein the power amplifier device comprises at least one semiconductor transistor configured to operate with an efficiency of at least 50% at a radio frequency (RF) in a range between 1.0 MHz and 12.0 MHz.

An ultrasound treatment system comprising:

• an ultrasonic probe comprising a housing containing a piezoelectrically active ultrasound therapy transducer adapted to focus acoustic ultrasonic waves a depth from the housing in a focal zone in a tissue;
• an electrical power system configured to provide electrical power to the ultrasound therapy transducer, the electrical power system comprising a power amplifier;
• and
• an electrical power measurement system configured to monitor electrical output power from an output signal from the power amplifier,
• wherein the electrical power measurement system comprises:
• a resistive current sensing circuit configured to monitor an electrical current output from the power amplifier;
• and
• a resistive voltage sensing circuit configured to monitor an electrical voltage output from the power amplifier, and
• wherein the electrical power measurement system is configured to monitor electrical output power from the power amplifier in a frequency range spanning at least two octaves for the ultrasound therapy transducer.