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
American Association of Tissue Banks The AATB also accommodates accreditation to non-transplant tissue banks and whole body donation programs. To avoid violating the Health Insurance Portability and Accountability Act, AATB must through their legal anatomical authorizations obtain consent which allows AATB representatives access to donor information for accreditation reviews. American Association of Tissue Banks The American Association of Tissue Banks (AATB); a transplant trade organization that is dedicated to ensuring that human tissues intended for transplantation are safe and free of infectious disease, of uniform high quality, and available in quantities sufficient to meet the needs of the national. The AATB provides accreditation for over