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
Body Worlds any connection between the closed Chinese exhibition and his Body Worlds franchise. Similar exhibitions had already been successfully staged in Lyon and Marseille. The UK Parliament created legislation for exhibits of human remains, including plastinated bodies and body parts, in England and Wales under the Human Tissue Act 2004. This requires a licence to be granted by the Human Tissue Authority. The Human Tissue Act superseded the Anatomy Act 1832, which had been found by an independent commission (The Redfern Report) to be inadequate on contemporary collection and use of human tissues, following the Alder Hey organs scandal. In March