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
History of beliefs about the human body be detected. Definitions of the body and it's disorders therefore focus on physical manifestations of energy through the body. This is mostly seen in Chinese Traditional Medicine and has today been explained in physical ways by modern science. The ideal body of east Asian medical literature was not muscular and instead focused on key energy manifestations in the body for directed therapy. The Yellow Emperor's Body is a term derived from the references to the Yellow Emperor within the Ancient Chinese book, the "book of change". The Term describes the references to both the physical body that can be touched,