UltraSound - Technology Information PortalTuesday, 30 May 2017
Info
  Sheets



Out-
      side
 




 
 'Breast Ultrasound' 
SEARCH FOR   
 
  12345ABCDEFGHIJKLMNOPQRSTUVWZ
Result : Searchterm 'Breast Ultrasound' found in 1 term [] and 0 definition [], (+ 18 Boolean[] results)
1 - 5 (of 19)     next
Result Pages : [1]  [2 3 4]
Searchterm 'Breast Ultrasound' was also found in the following services: 
spacer
News  (87)  Resources  (31)  
 
Breast UltrasoundMRI Resource Directory:<br> - Breast -
 
Breast ultrasound (sonography or ultrasonography) it is an important tool in the characterization of breast lesions, detected with mammography or clinical breast examination. However, a breast sonogram is not approved by the U.S. Food and Drug Administration (FDA) as a screening tool for breast cancer and is used additional to a mammogram.
Ultrasound is useful in guiding needles for fine needle aspiration and core biopsies. Breast ultrasound has optimal contrast resolution, but it lacks the spatial resolution of conventional mammography and cannot provide as much detail as a mammogram image. In addition, ultrasound is unable to show tiny calcium deposits (microcalcifications) that are often early indications of breast cancer.
See also Biopsy, Interventional Ultrasound, Ultrasound Safety, Side Effect and Ultrasound Regulations.
Radiology-tip.comMammography
spacer
Radiology-tip.comBreast MRI
spacer

• View the news results for 'Breast Ultrasound' (6).


• Related Searches:
    • Ultrasound Safety
    • Medical Imaging
    • Ultrasonography
    • 3D Ultrasound
    • Ultrasound Imaging Procedures

 Further Reading:
  Basics:
ultrasound characteristics of breast cancerOpen this link in a new window
   by rad.usuhs.mil    
  News & More:
Path from ultrasound guided biopsy on 18 Dec 03 pendingOpen this link in a new window
   by rad.usuhs.mil    
ultrasound-guided aspiration of breast cystOpen this link in a new window
   by rad.usuhs.mil    
Searchterm 'Breast Ultrasound' was also found in the following service: 
spacer
Radiology  (1) Open this link in a new windowMRI  (1) Open this link in a new window
History of UltrasoundMRI Resource Directory:<br> - History of UltraSound -
 
point In 1880 the Curie brothers discovered the piezoelectric effect in quartz. Converse piezoelectricity was mathematically deduced from fundamental thermodynamic principles by Lippmann in 1881.
point In 1917, Paul Langevin (France) and his coworkers developed an underwater sonar system (called hydrophone) that uses the piezoelectric effect to detect submarines through echo location.
point In 1935, the first RADAR system was produced by the British physicist Robert Watson-Wat. Also about 1935, developments began with the objective to use ultrasonic power therapeutically, utilizing its heating and disruptive effects on living tissues. In 1936, Siemens markets the first ultrasonic therapeutic machine, the Sonostat.
point Shortly after the World War II, researchers began to explore medical diagnostic capabilities of ultrasound. Karl Theo Dussik (Austria) attempted to locate the cerebral ventricles by measuring the transmission of ultrasound beam through the skull. Other researchers try to use ultrasound to detect gallstones, breast masses, and tumors. These first investigations were performed with A-mode.
point Shortly after the World War II, researchers in Europe, the United States and Japan began to explore medical diagnostic capabilities of ultrasound. Karl Theo Dussik (Austria) attempted to locate the cerebral ventricles by measuring the transmission of ultrasound beam through the skull. Other researchers, e.g. George Ludwig (United States) tried to use ultrasound to detect gallstones, breast masses, and tumors. This first experimentally investigations were performed with A-mode. Ultrasound pioneers contributed innovations and important discoveries, for example the velocity of sound transmission in animal soft tissues with a mean value of 1540 m/sec (still in use today), and determined values of the optimal scanning frequency of the ultrasound transducer.
point In the early 50`s the first B-mode images were obtained. Images were static, without gray-scale information in simple black and white and compound technique. Carl Hellmuth Hertz and Inge Edler (Sweden) made in 1953 the first scan of heart activity. Ian Donald and Colleagues (Scotland) were specialized on obstetric and gynecologic ultrasound research. By continuous development it was possible to study pregnancy and diagnose possible complications.
point After about 1960 two-dimensional compound procedures were developed. The applications in obstetric and gynecologic ultrasound boomed worldwide from the mid 60’s with both, A-scan and B-scan equipment. In the late 60’s B-mode ultrasonography replaced A-mode in wide parts.
point In the 70’s gray scale imaging became available and with progress of computer technique ultrasonic imaging gets better and faster.
point After continuous work, in the 80’s fast realtime B-mode gray-scale imaging was developed. Electronic focusing and duplex flow measurements became popular. A wider range of applications were possible.
point In the 90’s, high resolution scanners with digital beamforming, high transducer frequencies, multi-channel focus and broad-band transducer technology became state of the art. Optimized tissue contrast and improved diagnostic accuracy lead to an important role in breast imaging and cancer detection. Color Doppler and Duplex became available and sensitivity for low flow was continuously improved.
point Actually, machines with advanced ultrasound system performance are equipped with realtime compound imaging, tissue harmonic imaging, contrast harmonic imaging, vascular assessment, matrix array transducers, pulse inversion imaging, 3D and 4D ultrasound with panoramic view.
read more

Radiology-tip.comDiagnostic Imaging
spacer
Radiology-tip.comMRI History
spacer

 Further Reading:
  News & More:
Physics Tutorial: Ultrasound PhysicsOpen this link in a new window
   by www.physics247.com    
A-Mode Area RatioOpen this link in a new window
   by www.wildultrasound.com    
US Resources  
Hospitals - Societies - Carotid - Resources pool - DICOM - Corporations
 
Transthoracic EchocardiographyMRI Resource Directory:<br> - Cardiac -
 
(TTE) Transthoracic echocardiography is a common type of cardiac ultrasound and is used to evaluate the size and function of the heart.

Indications:
list_point assessment of the cardiac size, shape and function;
list_point pathological changes of the myocardium;
list_point function of the cardiac valves;
list_point pericardial fluid;
list_point congenital heart defects.
TTE requires no sedation or special patient preparation. After the application of ECG electrodes and ultrasound couplant, the probe is maneuvered over the chest in the area adjacent to the breast bone and under the left breast, to provide the different views of the heart. Usually the images will be obtained lying relaxed on the left side. Other views can be sampled lying on the back with the knees bent, or sitting in an upright position.
See also Bicycle Stress Echocardiography and Transesophageal Echocardiography.
spacer

 Further Reading:
  Basics:
EchocardiographyOpen this link in a new window
2006   by en.wikipedia.org    
  News & More:
Non-invasive diagnosis of coronary artery disease by quantitative stress echocardiography: optimal diagnostic models using off-line tissue Doppler in the MYDISE study(.pdf)Open this link in a new window
   by eurheartj.oxfordjournals.org    
Searchterm 'Breast Ultrasound' was also found in the following services: 
spacer
News  (87)  Resources  (31)  
 
Ultrasound ImagingMRI Resource Directory:<br> - UltraSound Physics -
 
(US) Also called echography, sonography, ultrasonography, echotomography, ultrasonic tomography.
Ultrasonic waves generated by a quartz crystal, cause mechanical perturbation of an elastic medium with rarefaction and compression of the medium particles. These waves are reflected at the interfaces between different tissues due to differences in the mechanical properties of the tissues. The transmission and reflection of these high-frequency waves are displayed with different types of ultrasound modes.
Using the wave propagation speed in tissues, the time of reflection information can be converted into distance of reflection information. The higher the frequency used in medical ultrasound imaging, the better the image resolution. With higher frequencies, the absorption of the sound beam by the medium is also higher and the beam cannot penetrate so far.
Higher frequencies, for example 7.5 MHz are used to provide good detail of superficial organs such as the thyroid gland and the breast. Lower frequencies, for example 3.5 MHz are used for examinations of the abdomen.
The advantages of ultrasound in medical imaging are:
list_point The procedure is noninvasive.
list_point Ultrasound is safe with no potential risks.
list_point It is easy available and relatively less expensive.
Diagnostic ultrasound imaging is generally a safe technique with no adverse effects. Since ultrasound is so widely used in pregnancy and in pediatric imaging, it is essential for all practitioners to ensure that its use remains safe. Ultrasound causes mechanical and thermal effects in tissue which are increased as the output power is increased.
There has been a general trend towards increased output with the introduction of color flow imaging, more use of pulsed spectral Doppler and higher demands on B-mode imaging. In response to these increasings, recommendations for the safe use of ultrasound have been issued. In addition, recent ultrasound safety regulations have changed to more responsibility of the operator to ensure that ultrasound is used safely.
See also Skinline, Pregnancy Ultrasound, Obstetric and Gynecologic Ultrasound, Musculoskeletal and Joint Ultrasound, and Prostate Ultrasound.
Radiology-tip.comDigital Radiography
spacer
Radiology-tip.comMRI Procedure
spacer

• View the news results for 'Ultrasound Imaging' (49).



 Further Reading:
  Basics:
Ultrasound Physics Main differences between Ultrasound and X-rays, Velocity of sound in some Biological MaterialsOpen this link in a new window
   by www.drgdiaz.com    
  News & More:
ultrasound characteristics of breast cancerOpen this link in a new window
   by rad.usuhs.mil    
Ultrasound anatomy of the neckOpen this link in a new window
   by rad.usuhs.mil    
Searchterm 'Breast Ultrasound' was also found in the following service: 
spacer
Radiology  (1) Open this link in a new windowMRI  (1) Open this link in a new window
AbsorptionMRI Resource Directory:<br> - UltraSound Physics -
 
Absorption is the transfer of energy from the ultrasound beam to the tissue. Absorption of acoustic energy increases the temperature of the tissue. This phenomenon, known as thermal radiation, has been used with some limited success to treat cancerous lesions in the breast and prostate gland. The absorption is proportional to the frequency.
See also Absorbed Dose, Thermal Effect, Thermotherapy.
spacer

 Further Reading:
  Basics:
Physics Tutorial: Ultrasound PhysicsOpen this link in a new window
   by www.physics247.com    
  News & More:
ultrasound characteristics of breast cancerOpen this link in a new window
   by rad.usuhs.mil    
Ultrasound in diagnostic and therapyOpen this link in a new window
   by www.anst.uu.se    
US Resources  
Research Labs - Societies - Universities - Ultrasound Therapy - Gynecology - Quality Advice
 
Related Searches:
 • Ultrasound Safety
 • Ultrasonography
 • 3D Ultrasound
 • Ultrasound Imaging Procedures
 • Sonographic Features
SEARCH FOR   
 
  12345ABCDEFGHIJKLMNOPQRSTUVWZ
     1 - 5 (of 19)     next
Result Pages : [1]  [2 3 4]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

US-TIP    
Community   
User
Pass
Forgot your UserID/Password ?  


Look
      Ups



UltraSound - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • US-TIP • The-Medical-Market
Copyright © 2006 - 2016 SoftWays. All rights reserved.
Terms of Use | Privacy Policy | Advertising
 [last update: 2015-03-04 09:17:02]