UltraSound - Technology Information PortalWednesday, 19 December 2018
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Ultrasound Gel - Databases - General - Corporations - Societies - Ultrasound Guided Interventions
 
Contrast Enhanced UltrasoundInfoSheet: - Contrast Agents - 
Intro, 
Historical Development, 
Microbubbles,
etc.MRI Resource Directory:<br> - Vascular -
 
(CEUS) Contrast agents increase the reflection of ultrasonic energy, improve the signal to noise ratio and caused by that the detection of abnormal microvascular and macrovascular disorders. Contrast enhanced ultrasound is used in abdominal ultrasound (liver sonography) as well as in cerebrovascular examinations e.g., for an accurate grading of carotid stenosis. The used contrast agents are safe and well tolerated.

The quality of the enhancement depends on:
point the concentration of the contrast agent;
point the type of injection, flow rate;
point the patient characteristics;
point the microbubble quality and properties of the filling gas and the shell.
The additional use of ultrasound contrast agents (USCAs) may overcome typical limitations like poor contrast of B-mode imaging or limited sensitivity of Doppler techniques. The development of new ultrasound applications (e.g., blood flow imaging, perfusion quantification) depends also from the development of pulse sequences for bubble specific imaging. In addition, contrast enhanced ultrasound improves the monitoring of ultrasound guided interventions like RF thermal ablation.
See also Contrast Enhanced Doppler Imaging, Contrast Harmonic Imaging, Contrast Imaging Techniques and Contrast Pulse Sequencing.
Radiology-tip.comContrast Enhanced Computed Tomography
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Radiology-tip.comContrast Enhanced MRI
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• View the news results for 'Contrast Enhanced Ultrasound' (1).


• Related Searches:
    • Contrast Harmonic Imaging
    • Ultrasound Contrast Agent Safety
    • Liver Sonography
    • Second Generation USCA
    • Ultrasound Contrast Agents

 Further Reading:
  Basics:
Guidelines and Good Clinical Practice Recommendations for Contrast Enhanced Ultrasound (CEUS)Open this link in a new window
2008   by www.efsumb.org    
  News & More:
Role of ultrasound and contrast-enhanced ultrasound in patients with cerebrovascular disease(.pdf)Open this link in a new window
Friday, 1 March 2002   by eurheartjsupp.oupjournals.org    
The clinical applications of contrast echocardiography(.pdf)Open this link in a new window
2000   by cme.medscape.com     
US Resources  
Manufacturers - Resources - Pediatric - UltraSound Physics - Heart - Journals
 
Acoustically Active LipospheresMRI Resource Directory:<br> - Contrast Agents -
 
(AALs) Acoustically active lipospheres and ultrasound are under development to deliver bioactive molecules to the vascular endothelium. The AALs are similar to both ultrasound contrast agents and drug-delivering liposomes. They can carry bioactive substances using biologically inert shells and deliver those substances when disrupted by ultrasound.
The lipospheres consist of a small gas microbubble surrounded by a thick oil shell and are enclosed by an outermost lipid layer. The gas bubble contained in these vehicles makes them acoustically active, similar to ultrasound contrast agents. Acoustically active lipospheres can be nondestructively deflected using ultrasound radiation force, and fragmented with high intensity ultrasound pulses. Their lipid-oil complex can carry bioactive substances at high concentrations. An optimized sequence of ultrasound pulses can deflect the AALs toward a vessel wall then disrupt them, painting their contents across the vascular endothelium.
See also Filling Gas, and MRX 115.
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 Further Reading:
  Basics:
A Method for Radiation-Force Localized DrugDelivery Using Gas-Filled Lipospheres(.pdf)Open this link in a new window
Wednesday, 7 July 2004   by www.ncbi.nlm.nih.gov    
  News & More:
Radiation-Force Assisted Targeting Facilitates Ultrasonic Molecular ImagingOpen this link in a new window
Sunday, 4 July 2004   by www.bme.ucdavis.edu    
Bio-effects of ultrasound contrast agents in daily clinical practice: fact or fiction?(.pdf)Open this link in a new window
Monday, 30 April 2007   by eurheartj.oxfordjournals.org    
US Resources  
Distributors - Rental - Preferential Sites - PACS - Modes - Carotid
 
Vector Array TransducerInfoSheet: Probes/Transducers
Intro,
Probes, 
TransducersMRI Resource Directory:<br> - Probes Transducers -
 
Vector array transducers have phasing applied to linear sequenced arrays to steer pulses in various directions.
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US Resources  
Image Quality - Manufacturers - Online Books - Breast - Heart - UltraSound Technician and Technologist Jobs
 
Related Searches:
 • Liver Sonography
 • Ultrasound Contrast Agent Safety
 • Ultrasound Contrast Agents
 • First generation USCA
 • Contrast Harmonic Imaging
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