Abstract: Radiolabelled polypeptides derived from the Viperidae disintegrins are provided as well as a method for the detection of venous and arterial thrombi, pulmonary emboli and tumors or abscesses that have a thrombus component. Compositions suitable for parenteral administration comprising the radiolabelled polypeptides and a pharmaceutically acceptable carrier are also provided.

Abstract: Nuclear magnetic resonance imaging of animal or human tissue is enhanced when a paramagnetic pyrophosphate compound is administered intraveneously as a contrast agent. The contrast agent is particularly useful in magnetic resonance imaging of area of tissue calcification, such as acute myocardial infarctions. Specific localization of paramagnetic pyrophosphate in ischemic and necrotic muscle cells at the periphery of a myocardial infarction makes accurate localization and sizing of the central infarct and peri-infarct zones possible.

Abstract: A method and apparatus for automatically detecting the blood pressure of a person by auscultation in which a standard blood pressure cuff is connected to a pressure transducer for providing a pressure signal and a microphone is used for providing an electrical signal from the Korotkoff sounds detected. The Korotkoff sound electrical signal is amplified and passed through a bandpass filter which has a flat response between approximately 50 and 160 Hz and a sharp cutoff below 50 Hz. The resultant signal is then summed with the pressure signal to provide an output which indicates the pressures at which the five phases associated with the Korotkoff sounds occur.