Tissue Doppler echocardiography Tissue Doppler echocardiography Tissue Doppler echocardiography (TDE) is a medical ultrasound technology, specifically a form of echocardiography that measures the velocity of the heart muscle (myocardium) through the phases of one or more heartbeats by the Doppler effect (frequency shift) of the reflected ultrasound. The technique is the same as for flow Doppler echocardiography measuring flow velocities. Tissue signals, however, have higher amplitude and lower velocities, and the signals are extracted by using different filter and gain settings. The terms tissue Doppler imaging (TDI) and tissue velocity imaging (TVI) are usually synonymous with TDE because echocardiography is the main use
Catholic theology of the body communicate with him. The human body is the lower element of the human person. Through the body, man experiences his temporal existence. But Gregory also admired human beauty and the bodily abilities to dream, sleep and memorize. The body can be both a friend and enemy of a person, according to Gregory. The final goal is a unity of the soul with God, which is possible with Grace and the assistance of the Holy Spirit according to Gregory. Gregory of Nyssa (335-394) was a bishop who wrote, among others, about the creation of the human body. Unlike Irenaeus, Gregory states,