On contrast two-dimensional echocardiography : applications and new developments . part viii *
semanticscholar(2010)
Abstract
To investigate whether precision microbubbles can be simply generated and used for quantitative contrast echocardiographic studies, precision microbubbles were fabricated in gelatin using a simple generator. The generator consisted of a fluid pump, a generating site containing a narrow bore tube and a bubble stream output port. Up to 5,000 microbubbles/s were generated with a controllable radius of 80 to 150 11-. No detectable interbubble size variation was observed under high power microscopy. To examine whether these bubbles could be used for quantitative contrast echocardiographic studies, they were then infused into a tube with a known flow of degassed water during ultrasonic imaging. The resulting ultrasonic contrast effect in the tube lumen at
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