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 'Ultrasonic' 
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Result : Searchterm 'Ultrasonic' found in 4 terms [] and 36 definitions [])
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UltrasonicMRI Resource Directory:<br> - UltraSound Physics -
 
Ultrasonic or ultrasound relates to energy waves of high frequencies above 30,000 Hz similar to those of audible sound.
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• Related Searches:
    • Ultrasonography
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    • Thermal Effect
    • Absorbed Dose
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Ultrasonic PowerMRI Resource Directory:<br> - UltraSound Physics -
 
The ultrasonic power is the total amount of sound energy emitted by the transducer per unit of time.
See also Ultrasonic Heating.
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Physics Tutorial: Ultrasound PhysicsOpen this link in a new window
   by www.physics247.com    
US Resources  
Non-English - Musculoskeletal and Joint - Supplies and Accessories - Quality Advice - Examinations - Education
 
Ultrasonic HeatingMRI Resource Directory:<br> - Safety -
 
Due to the absorption of ultrasound, heating of tissue (including bone) can occur. For this reason, the sonographer should follow the ALARA principle to minimize the potential for ultrasonic heating of tissue during for example M-mode ultrasound. The thermal effect of Doppler ultrasound flow examinations is significantly greater.
See also Thermal Index and Ultrasonic Power.
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Guidelines for the Safe Use of Diagnostic Ultrasound(.pdf)Open this link in a new window
   by folk.ntnu.no    
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Ultrasonic Contrast AgentsMRI Resource Directory:<br> - Contrast Agents -
 
(UCA / USCA) Ultrasonic contrast agents, also called ultrasound contrast agents, are encapsulated bubbles on the order of 1?10 µm in diameter. These gas bubbles are injected into the blood stream in order to increase blood/ tissue contrast during an ultrasonogram. These microbubbles are filled with air or a gas with a lower solubility in blood than air, such as perfluorochemicals. The microbubble shell consists of albumin, phospholipid, or other material and encapsulates the gas core. Due to this construction, ultrasonic contrast agents are highly compressible, and have a high echogenicity.
See also Ultrasound Contrast Agent Safety.
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Absorbed DoseMRI Resource Directory:<br> - UltraSound Physics -
 
In physics, the absorbed dose is the ultrasonic power absorbed per unit of mass of an object, and is measured in watts per kilogram (W/kg). The absorption increases with ultrasound intensity and frequency.
The thermal index describes the potential for heating of the patient's tissue due to the application of energy.
See also Thermal Effect, Ultrasound Safety, Ultrasound Regulations.
Radiology-tip.comRadiation Absorbed Dose
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Radiology-tip.comAbsorbed Dose
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 Further Reading:
  Basics:
Physics Tutorial: Ultrasound PhysicsOpen this link in a new window
   by www.physics247.com    
US Resources  
Kidney - 4d UltraSound - Thyroid - Portals - Liver - Research Labs
 
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