Ultrasonic diagnosis apparatus, operation method of the same, and computer readable recording medium

An operation method of an ultrasonic diagnosis apparatus that transmits an ultrasonic wave to a specimen and receives an ultrasonic wave reflected off the specimen for determining a tissue characteristic of the specimen based on a received ultrasonic wave, the operation method comprising:

• calculating a frequency spectrum at a frequency analyzing unit by analyzing a frequency of a received ultrasonic wave;
• setting at least an upper limit frequency of a frequency band for use in approximating the calculated frequency spectrum to a predetermined frequency according to a receiving depth of an ultrasonic wave;
• extracting feature data of the frequency spectrum at a feature data extracting unit by approximating a frequency spectrum of the set frequency band;
• and
• determining a tissue characteristic in a predetermined area in the specimen at a tissue characteristic determining unit using feature data read out of a storage unit storing feature data of a frequency spectrum extracted based on ultrasonic waves reflected off a plurality of known specimens in association with tissue characteristics of the plurality of known specimens and the feature data extracted at the feature data extracting unit.

A non-transitory computer readable recording medium with an executable program recorded thereon, wherein the program instructs a processor to perform:

• calculating a frequency spectrum at a frequency analyzing unit by analyzing a frequency of a received ultrasonic wave;
• setting at least an upper limit frequency of a frequency band for use in approximating the calculated frequency spectrum to a predetermined frequency according to a receiving depth of an ultrasonic wave;
• extracting feature data of the frequency spectrum at a feature data extracting unit by approximating a frequency spectrum of the set frequency band;
• and
• determining a tissue characteristic in a predetermined area in the specimen at a tissue characteristic determining unit using feature data read out of a storage unit storing feature data of a frequency spectrum extracted based on ultrasonic waves reflected off a plurality of known specimens in association with tissue characteristics of the plurality of known specimens and the feature data extracted at the feature data extracting unit.