Titlebook: Angiocardiography; Current Status and F H. Just,P. H. Heintzen Conference proceedings 1986 Springer-Verlag Berlin Heidelberg 1986 Bypass.Di

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Evaluation of Myocardial Function Using Power Indices,f the ventricle. An acute increase of the afterload, for instance, combined with no change of contractility results in a reduction of the ejection fraction and of the velocity of fiber shortening [8, 12].

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合唱團(tuán)

https://doi.org/10.1007/978-3-662-06830-4 this way can the high demands regarding image quality and dynamic resolution be satisfactorily met. For routine work, extremely high frame speeds (up to many hundreds per s) are unneccessary [2]; the emphasis is more on the range of 50–100 per s [3].

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Forage飼料

采納

Equipment for Angiocardiography,He failed, however, to visualize the chambers of the heart when in 1931 he injected an iodide solution. The first researchers who managed to outline the right heart (in children) were Castellanos et al. in Havana, in 1937.

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New Developments in Video Systems: Camera Tubes and Storage Devices,tation possible. While the stereo technique also appears to be very suitable, so far it has only been applied in individual cases [1]. Instead of the cut film changer with its frame speed limitation, nowadays, without exception, the image intensifier cine technique is used for documentation. Only in