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
Tissue bank it is for transplant and/or therapy. The American Association of Tissue Banks (AATB) is the most recognized accrediting body for American tissue banks. At the first European Conference on Problems of Tissue Banking and Clinical Applications, held in Berlin on Oct 24-26, 1991, many European countries joined together to adapt common practices regarding tissue banks and the European Association of Tissue Banks was created. Body brokers are firms or individuals that buy and sell cadaver human body parts for use of research. Trade in these body parts is performed in a manner similar to other raw materials, though many brokers