Ultrasound diagnostic system and method of detecting lesion

An ultrasound diagnostic system, comprising:

• a high intensity frequency ultrasound (HIFU) probe for injecting the HIFU on a lesion in a body;
• an imaging probe for transmitting ultrasound signals to the lesion and receiving ultrasound echo signals from the lesion, the imaging probe further being configured to output receive signals obtained from the ultrasound echo signals;
• a signal processing unit for detecting center frequencies of two receive signals outputted from the imaging probe and calculating center frequency shift between the two receive signals, the signal processing unit further being configured to determine a position of the lesion in consideration of the center frequency shift;
• an image processor for forming at least one ultrasound image showing the lesion based on the receive signals and a center frequency shift image based on center frequency shift;
• and
• a display unit for displaying the ultrasound image and the center frequency shift image.

A method of detecting a lesion in a body, comprising:

• transmitting ultrasound signals to a lesion in a body;
• receiving first ultrasound echo signals from the lesion;
• injecting high intensity frequency ultrasound (HIFU) on the lesion;
• transmitting ultrasound signals to a lesion in a body;
• receiving second ultrasound echo signals from the lesion;
• obtaining first receive signals from the first ultrasound echo signals and second receive signals from the second ultrasound echo signals;
• detecting center frequencies of the first and second receive signals;
• calculating center frequency shift between the first and second receive signals, wherein the center frequency shift is a pixel value of each pixel for forming a center frequency shift image;
• determining a position of the lesion in consideration of the center frequency shift;
• forming the center frequency shift image based on the center frequency shift;
• and
• displaying the center frequency shift image.

A method of detecting a lesion in a body, comprising:

• injecting a high intensity frequency ultrasound (HIFU) on a lesion in a body;
• transmitting ultrasound signals to the lesion when the HIFU is injected on the lesion;
• obtaining former and latter receive signals with ultrasound echo signals from the lesion, successively, when the HIFU is injected on the lesion;
• detecting center frequencies of the former and latter receive signals;
• calculating center frequency shift between the former and latter receive signals, wherein the center frequency shift is a pixel value of each pixel for forming a center frequency shift image;
• determining a position of the lesion in consideration of the center frequency shift;
• forming the center frequency shift image based on the center frequency shift;
• and
• displaying the center frequency shift image.