Archive for the ‘Ultrasound’ Category
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 will remain in the systemic circulation for a certain period of time. Ultrasound waves are directed on the area of interest and when the micro-bubbles in the blood flow pass the imaging window they give rise to increased signal. Also, these CM allows detection of blood flow where it would otherwise not be seen.
|LEVOVIST||Palmitic acid||Air||3-5 mm|
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 cable (connector) – known as Read the rest of this entry »