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 'Acoustic Window' 
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Result : Searchterm 'Acoustic Window' found in 1 term [] and 8 definitions [])
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Acoustic WindowMRI Resource Directory:<br> - UltraSound Physics -
 
The acoustic window or field is the area defined by the pathway of the ultrasound beam between the transducer and the acoustic reflector. The sound reflection to skin boundary should be minimized with an ultrasound gel where this gel acts as an acoustic window through which the image is seen.
Acoustic window refers also to the optimal placing of the transducers so that the areas of interest are clearly imaged.
See also Transforaminal Window, Transcranial Window, Transorbital Window and Transtemporal Window.
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Ultrasound renal anatomyOpen this link in a new window
   by rad.usuhs.mil    
US Resources  
Distributors - Calculation - UltraSound Technician and Technologist Schools - UltraSound Physics - Research Labs - Directories
 
Cerebrovascular UltrasonographyMRI Resource Directory:<br> - Carotid -
 
Cerebrovascular ultrasonography is the best screening tool for the detection of carotid artery stenosis. Transcranial sonography is used in the evaluation of patients with suspected cerebrovascular disease, but a common problem is the attenuation of the ultrasound signal by the skull.
Contrast enhanced ultrasound play a particularly important role in the visualization of the intracranial vessels, and thus improves the accuracy of transcranial Doppler and increases the potential of this technique. The use of microbubbles is helpful for classification of stenosis and for plaque evaluation in patients with poor initial examination. Ultrasound contrast agents avoid misdiagnosing a subtotal stenosis, which is a very important clinical issue.
See also Adventitia, Intima, Periorbital Doppler, and Acoustic Window.
Radiology-tip.comDigital Subtraction Angiography
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Radiology-tip.comContrast Enhanced Magnetic Resonance Angiography
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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    
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Carotid artery color doppler ultrasound: 80-90% stenosis of the proximal internal carotid artery secondary to large atherosclerotic plaquesOpen this link in a new window
   by rad.usuhs.mil    
US Resources  
UltraSound Training Courses - DICOM - - UltraSound Physics - Safety - History of UltraSound
 
Laparoscopic UltrasoundMRI Resource Directory:<br> - Endoscopic -
 
(LUS) Diagnostic laparoscopy combined with laparoscopic ultrasound is used for staging tumors and to monitor surgical interventions like for example radiofrequency ablation or cryotherapy. Laparoscopic ultrasound provides direct contact imaging of organs with high frequency ultrasound. Laparoscopic ultrasound identifies and characterizes the tumor, guides the probe, and monitors the progression of the freezing or the thermal destruction. This procedure avoid unnecessary open surgery and improves selection of patients for tumor resection e.g., in liver and pancreas.
Challenges of LUS are limitations of the intraoperative acoustic windows and the possible movement of the probe and that standard orientation techniques are difficult to apply with laparoscopic instruments, resulting in images from oblique planes. 3D ultrasound or special navigation systems may be helpful.
See also Ultrasound Therapy.
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Biliary ProceduresOpen this link in a new window
   by www.cpmc.org    
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A Navigation System for Augmenting Laparoscopic UltrasoundOpen this link in a new window
   by www.na-mic.org    
Searchterm 'Acoustic Window' was also found in the following services: 
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Pelvic UltrasoundMRI Resource Directory:<br> - Pelvic -
 
A pelvic ultrasound is commonly used during pregnancy to check on the prenatal development of the fetus. Gynecologic ultrasonography is a tool to image the female pelvic organs, like uterus, ovaries, Fallopian tubes, bladder, pouch of Douglas, and pelvic pathology of relevance outside of pregnancy. Male pelvic ultrasound checks the health of the bladder and prostate.
Pelvic ultrasound can be performed externally through the abdominal wall, transvaginal or transrectal. A full bladder is advantageous in obstetric and gynecologic ultrasound, because sound waves passes very well through liquid; the bladder is used as an acoustic window to see deeper structures and to push the bowel out the way, allowing for better imaging. If the bladder can not be made full enough, or if the gas within the bowel makes imaging difficult, transvaginal sonography is the most effective way of imaging the pelvis.
See also Fetal Ultrasound, Transvaginal Sonography, Vaginal Probe, Urologic Ultrasound, Reflux Sonography and Transrectal Sonography.
Radiology-tip.comAbdomen CT
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Radiology-tip.comAbdominal Imaging
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• View the news results for 'Pelvic Ultrasound' (1).



 Further Reading:
  Basics:
Female pelvis - ultrasound anatomyOpen this link in a new window
   by rad.usuhs.mil    
Medical Physics: Ultrasound - extended reading exerciseOpen this link in a new window
   by www.cyberphysics.pwp.blueyonder.co.uk    
General Pelvis Anatomy, UltrasoundOpen this link in a new window
   by rad.usuhs.mil    
Three-Dimensional Ultrasound in Gynecology: Where is it Applicable?Open this link in a new window
   by www.gehealthcare.com    
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Acute Appendicitis Diagnosed by UltrasoundOpen this link in a new window
   by rad.usuhs.mil    
Ultrasound appearances of pelvic inflammatory disease. Patient A: Hydrosalpinx. Patient B: Pyosalpinx. Patient C: Tubo-ovarian abscess.Open this link in a new window
   by rad.usuhs.mil    
US Resources  
Heart - Kidney - Quality Advice - Hospitals - Services and Supplies - Obstetric
 
Periorbital DopplerMRI Resource Directory:<br> - Carotid -
 
Periorbital Doppler is a continuous wave Doppler examination, determining the amplitude, flow direction, and compression effect of the frontal or supraorbital arteries in the periorbital region.
See also Acoustic Window, and Cerebrovascular Ultrasonography.
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Used and Refurbished UltraSound Equipment - Resources - Obstetric - 4d UltraSound - Safety - Ultrasound Guided Interventions
 
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