UltraSound - Technology Information PortalFriday, 18 August 2017
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Radiology Database Open this link in a new window Magnetic Resonance Imaging Database Open this link in a new window
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US Resources  
Endoscopic - General - PACS - Prenatal - Developers - Doppler UltraSound
 
Obstetric and Gynecologic UltrasoundMRI Resource Directory:
 - Obstetric -
 
Obstetric and gynecologic [gynaecologic, Brit.] ultrasound is an essential tool to evaluate the fetus, uterus, ovaries and surrounding tissues. Pelvic ultrasound is performed routinely during pregnancy, examinations to determine the cause of infertility, pelvic pain or abnormal vaginal bleeding.
Women with uncomplicated pregnancies may be referred to ultrasound between the 16th and 20th week of pregnancy for routine assessment of gestational age, fetal size and growth with a real-time scanner. Many defects of the fetal anatomy can be identified using ultrasound examination during the mid-trimester of pregnancy.
For gynecological sonography, a transabdominal sonogram is performed with a full bladder. If the pelvic ultrasound shows any pathology, or does not provide a clear image of the organs, a transvaginal ultrasound is performed to better visualize the uterus and ovaries. In general, ultrasound can detect inflammation, free fluid, cysts, and tumors in the pelvic region.
See also Pregnancy Ultrasound, Pelvic Ultrasound, Hysterosalpingo Contrast Sonography and Vaginal Probe.
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• View the NEWS results for 'Obstetric and Gynecologic Ultrasound' (1).Open this link in a new window.

• View the DATABASE results for 'Obstetric and Gynecologic Ultrasound' (6).Open this link in a new window.

 Further Reading:
  Basics:
Pelvic ultrasoundOpen this link in a new window
   by www.surgeryencyclopedia.com    
EDUCATIONAL TUTORIALS: ULTRASOUND - IMAGING Open this link in a new window
   by www.obgyn.net    
OculoplethysmographyMRI Resource Directory:
 - Carotid -
 
(OPG) The Oculoplethysmography is used to detect a hemodynamically significant stenosis of the carotid circulation, by measuring the arrival times of pulses in the eye and ear. Indirectly the blood flow in the ophthalmic artery is measured, which branches off the carotid artery and supplies blood to the eye. A delay between pulse arrival in the eye and ear is an indication of a hemodynamically significant stenosis in the vessel whose corresponding pulse is delayed.
Other ultrasound or angiography procedures are necessary to confirm the diagnosis and have also replaced this technique.
See also Plethysmography and Ultrasound Biomicroscopy.
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• View the DATABASE results for 'Oculoplethysmography' (3).Open this link in a new window.

 Further Reading:
  News & More:
Guidelines for the Safe Use of Diagnostic Ultrasound(.pdf)Open this link in a new window
   by folk.ntnu.no    
US Resources  
Musculoskeletal and Joint - Ultrasound Gel - Veterinary UltraSound - Resources pool - Resources - Abdominal
 
OmnidirectionalMRI Resource Directory:
 - UltraSound Physics -
 
An omnidirectional transducer transmits or receives ultrasound waves in or from any direction with 360 degrees receiving capability.
See also Transmitter, and Receiver.
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• View the DATABASE results for 'Omnidirectional' (3).Open this link in a new window.

OpacificationMRI Resource Directory:
 - Image Quality -
 
Opacification is the filling of an echo free region, such as a ventricular cavity, with echoes from microbubble contrast.
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• View the DATABASE results for 'Opacification' (10).Open this link in a new window.

 Further Reading:
  News & More:
Combination of contrast with stress echocardiography: A practical guide to methods and interpretationOpen this link in a new window
2004   by www.cardiovascularultrasound.com    
Open Circuit VoltageMRI Resource Directory:
 - UltraSound Physics -
 
The open circuit voltage is the level of the electrical output per one microPascal of acoustic input.
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• View the DATABASE results for 'Open Circuit Voltage' (2).Open this link in a new window.

US Resources  
Renal - Online Books - Research Labs - Vascular - Service and Repair - Cardiac
 
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