PROBLEM TO BE SOLVED: To improve accuracy of analysis and diagnosis while reducing time required for analysis and diagnosis.SOLUTION: An ultrasonic diagnostic device comprises a first acquisition part, a first generation part, a second generation part and a display control part. The first acquisition part acquires a three-dimensional ultrasonic image including the heart with one or more time phases. The first generation part generates a first cross-sectional image indicating the cross section of the three-dimensional ultrasonic image including a first axis passing a second portion for performing one of inflow of blood to a first position being the atrium or cardiac chamber and outflow of blood from the first portion, and including a third portion for performing the other of inflow of blood to the first portion and outflow of blood from the first portion in the three-dimensional ultrasonic image. The second generation part generates a second cross-sectional image indicating the cross section of the three-dimensional ultrasonic image including a second shaft passing the third portion on the first cross-sectional image and intersecting the first cross-sectional image. The display control part performs control to display the first cross-sectional image and the second cross-sectional image.【課題】解析や診断に要する時間を削減するとともに解析や診断の精度を向上させる。【解決手段】実施形態の超音波診断装置は、第１取得部と第１生成部と第２生成部と表示制御部とを備える。第１取得部は、１つ以上の時相の、心臓を含む３次元の超音波画像を取得する。第１生成部は、３次元の超音波画像において、心房または心室である第１部位への血液の流入および第１部位からの血液の流出のうちの何れか一方を行うための第２部位を通る第１軸を含み、かつ、第１部位への血液の流入および第１部位からの血液の流出のうちの何れか他方を行うための第３部位を含む３次元の超音波画像の断面を示す第１断面像を生成する。第２生成部は、第１断面像上で、第３部位を通る第２軸を含み、かつ、第１断面像に交わる３次元の超音波画像の断面を示す第２断面像を生成する。表示制御部は、第１断面像と第２断面像を表示する制御を行う。【選択図】図１
