Computerized discrimination of microemboli in extracorporeal circuits. 1978

L R Abts, and R T Beyer, and P M Galletti, and P D Richardson, and D Karon, and R Massimino, and K E Karlson

A computerized ultrasonic particle detection system is capable of identifying microemboli in the 10 to 350 microgram. Data show that appropriate computer analysis of the reflecting signals allows discrimination of size and type of emboli. All extracorporeal circuits have microemboli with a large variation in size and number, depending upon the apparatus and how it is run.

UI MeSH Term Description Entries
D010107 Oxygenators, Membrane Devices in which blood and oxygen are separated by a semipermeable membrane, generally of Teflon or polypropylene, across which gas exchange occurs. The membrane may be arranged as a series of parallel plates or as a number of hollow fibers; in the latter arrangement, the blood may flow inside the fibers, which are surrounded by gas, or the blood may flow outside the fibers and the gas inside the fibers. (Dorland, 28th ed) Membrane Oxygenator,Membrane Oxygenators,Oxygenator, Membrane
D010316 Particle Size Relating to the size of solids. Particle Sizes,Size, Particle,Sizes, Particle
D003201 Computers Programmable electronic devices designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Calculators, Programmable,Computer Hardware,Computers, Digital,Hardware, Computer,Calculator, Programmable,Computer,Computer, Digital,Digital Computer,Digital Computers,Programmable Calculator,Programmable Calculators
D004617 Embolism Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream. Embolus,Embolisms
D005112 Extracorporeal Circulation Diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation. Circulation, Extracorporeal,Circulations, Extracorporeal,Extracorporeal Circulations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014465 Ultrasonics A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues. Ultrasonic

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