Ultrasound diagnosis apparatus, ultrasound diagnosis method, and non-transitory computer readable storage medium

An ultrasound diagnosis method, comprising:

• acquiring a first echo signal based on a first ultrasound beam and a second echo signal based on a second ultrasound beam, the second ultrasound beam covering an area at least partially overlapping, and differing in an elevation direction from, an area covered by the first ultrasound beam;
• calculating a differential signal representing a difference between the first echo signal and the second echo signal;
• and
• displaying a differential image based on the differential signal.

A non-transitory computer readable storage medium storing a program that causes processing circuitry to:

• acquire a first echo signal based on a first ultrasound beam and a second echo signal based on a second ultrasound beam, the second ultrasound beam covering an area at least partially overlapping, and differing in an elevation direction from, an area covered by the first ultrasound beam;
• calculate a differential signal representing a difference between the first echo signal and the second echo signal;
• and
• display a differential image based on the differential signal.