PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus displaying an ultrasonic tomographic image of a subject, and automatically detecting abnormal motion of an object tissue of the subject.SOLUTION: In this ultrasonic diagnostic apparatus, the section of the object tissue of the subject is scanned by ultrasonic waves, an ultrasonic tomographic image is generated based on an obtained echo signal, and the ultrasonic tomographic image is displayed on a display means. The apparatus includes a biological motion measuring means 8 for obtaining a biological waveform showing the motion to the time of the biological motion by measuring periodic biological motion of the object tissue during scanning and a decision means 61 for comparing the reference waveform of the biological waveform with the measured biological waveform to decide abnormal motion when a difference between them exceeds a predetermined value.COPYRIGHT: (C)2008,JPO&INPIT【課題】被検体の超音波断層画像を表示するとともに、被検体の対象組織の異常運動を自動的に検出する超音波診断装置を提供する。【解決手段】被検体の対象組織の断面を超音波でスキャンし、得られたエコー信号に基づいて超音波断層像を生成し、超音波断層像を表示手段に表示する超音波診断装置であって、スキャン中に、対象組織の周期的な生体運動を計測することにより、生体運動の時間に対する動きを表す生体波形を求める生体運動計測手段8と、生体波形の基準波形と、計測した生体波形とを比較し、それらの差が所定値を超えたときに異常運動と判断する判断手段61とを備える。【選択図】図1
