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Contrast Agents used in Ultrasound

Ultrasound contrast agents are gas-filled micro-bubbles which are injected into the blood stream. Micro-bubbles will give increased backscatter signal due to the large acoustic impedance mismatch between the gas-filled bubble and surrounding tissue Micro-bubble suspension is injected intravenously into the systemic circulation in a small bolus. The micro-bubbles...
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The Ultrasound Transducer and Its Parts

The ultrasound transducer, also known as probe or tranceiver (because it transmits and receives signals) is called the heart of the ultrasound machine, the most important part of the ultrasound machine and the most expensive as well. Below are the major parts and functions of the transducer: Coaxial...
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