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 '4D Ultrasound' 
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4D UltrasoundInfoSheet: - Modes - 
Intro, 
Overview, 
Types of, 
etc.MRI Resource Directory:<br> - Modes -
 
As far as ultrasound is concerned, 4D ultrasound (also referred to as live 3D ultrasound or 4B-mode) is the latest ultrasound technology - the fourth dimension means length, width, and depth over time. 4D Ultrasound takes 3D ultrasound images and adds the element of time to the progress so that a moving three-dimensional image is seen on the monitor. A 4D scan takes the same amounts of time as a 2D or 3D scan; the difference is the ultrasound equipment being used. One advantage of a 4D fetal ultrasound to a 2D-mode is that parents can see how their baby will generally look like. However, there are different opinions over the medical advantages.
To scan a 3D ultrasound image, the probe is swept over the maternal abdomen. A computer takes multiple images and renders the 3D picture. With 4D imaging, the computer takes the images as multiple pictures while the probe is hold still and a 3D image is simultaneously rendered in real time on a monitor.
In most cases, the standard 2D ultrasound is taken, and then the 3D/4D scan capability is added if an abnormality is detected or suspected. The 3D/4D sonogram is then focused on a specific area, to provide the details needed to assess and diagnose a suspected problem. A quick 4D scan of the face of the fetus may be performed at the end of a routine exam, providing the parents with a photo.
Radiology-tip.comFluoroscopy
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• View the news results for '4D Ultrasound' (5).


• Related Searches:
    • Obstetric and Gynecologic Ultrasound
    • Ultrasound Picture
    • Ultrasound Imaging
    • B-Mode (brightness) Ultrasound
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 Further Reading:
  Basics:
Impulse Imaging 4D Imaging : 4D Ultrasound, 4D Radar, 4D Sonar, ... Real Time 3D Imaging using Ellipsoidal BackprojectionOpen this link in a new window
2001   by www.impulseimaging.net    
  News & More:
Ultrasound: Weighing the Propaganda Against the FactsOpen this link in a new window
   by www.midwiferytoday.com    
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4B-ModeMRI Resource Directory:<br> - Modes -
 
A four dimensional B-mode ultrasound means length, width, and depth over time so that a moving three-dimensional image is seen on the monitor.
See 4D Ultrasound.
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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.
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 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    
Searchterm '4D Ultrasound' was also found in the following services: 
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LOGIQ® 7InfoSheet: - Devices -
Intro, 
TypesMRI Resource Directory:<br> - Devices Machines Scanners Systems -
 
gehealthcare.com/usen/ultrasound/genimg/products/logiq7/index.html

From GE Healthcare.;
'The System of Choice for Shared Service.
The LOGIQ® 7 system provides a full range of clinical applications including abdominal, small parts, surgery, vascular and cardiac imaging and the power of GE’s patented TruScan architecture. Just imagine an ultrasound system so versatile and reliable that it can meet the demands of virtually any clinical setting. And an ergonomic design that improves scanning comfort and clinical work flow.'


Device Information and Specification
APPLICATIONS Abdominal, cardiac, breast, intraoperative, musculoskeletal, neonatal, OB/GYN, orthopedic, pediatric, small parts, transcranial, urologic, vascular
CONFIGURATION 17" high resolution non-interlaced flat CRT, 4 active probe ports
RANGE OF PROBE TYPE Multi-frequency, 4D ultrasound, convex - micro convex, phased array, linear, specialty
TRANSDUCERS LOGIQ® 7 Probes
IMAGING MODES B-mode, M-mode, coded harmonic imaging, color flow mode (CFM), power Doppler imaging (PDI), color Doppler, pulsed wave Doppler, tissue harmonic imaging
IMAGING OPTIONS CrossXBeam spatial compounding, coded ultrasound acquisition),speckle reduction imaging (SRI), TruScan technology store raw data, CINE review with 4 speed types
OPTIONAL PACKAGE Transesophageal scanning, stress echo, tissue velocity imaging (TVI), tissue velocity Doppler (TVD), contrast harmonic imaging
STORAGE, CONNECTIVITY, OS Patient and image archive, HDD, DICOM 3.0, CD/DVD, MOD, Windows-based
DATA PROCESSING Digital beamformer with 1024 system processing channel technology
H*W*D m (inch.) 1.62 * 0.61 * 0.99 (64 * 24 * 39)
WEIGHT 246 kg (498 lbs.)
power CONSUMPTION less than 1.5 KVA
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• View the news results for 'LOGIQ® 7' (2).



 Further Reading:
  Basics:
LOGIQ 9,7& S6 series Transducer Guide(.pdf)Open this link in a new window
   by www.gehealthcare.com    
Searchterm '4D Ultrasound' was also found in the following service: 
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Radiology  (1) Open this link in a new window
LOGIQ® 9InfoSheet: - Devices -
Intro, 
TypesMRI Resource Directory:<br> - Devices Machines Scanners Systems -
 
gehealthcare.com/usen/ultrasound/genimg/products/logiq9/index.html

From GE Healthcare.;
'The System of Choice for General Imaging
Imagine a leading-edge ultrasound system so versatile that it can meet the demands of virtually any clinical setting. With the LOGIQ® 9, you’ll have a high-performance system capable of multi-dimensional imaging for a full range of clinical applications – from abdominal to breast to vascular imaging. And an ergonomic design that improves scanning comfort and clinical work flow. Now, imagine what LOGIQ® 9 could do for you and your patients.'


Device Information and Specification
APPLICATIONS Abdominal, cardiac, breast, intraoperative, musculoskeletal, neonatal, OB/GYN, orthopedic, pediatric, small parts, transcranial, urologic, vascular
CONFIGURATION 17" high resolution non-interlaced flat CRT, 4 active probe ports
RANGE OF PROBE TYPE Multi-frequency, 4D, convex - micro convex, phased array, linear, specialty
TRANSDUCERS Transducer guide (PDF)
IMAGING MODES B-mode, M-mode, coded harmonic imaging, color flow mode (CFM), power Doppler imaging (PDI), PW-HPRF, CW Doppler, color Doppler, pulsed wave Doppler, tissue harmonic imaging
IMAGING OPTIONS CrossXBeam spatial compounding, coded ultrasound acquisition), speckle reduction imaging (SRI), TruScan technology store raw data, real-time 4D ultrasound, Tru 3D ultrasound
STORAGE, CONNECTIVITY, OS Patient and image archive, HDD, DICOM 3.0, CD/DVD, MOD, PCMCIA, USB, Windows-based
DATA PROCESSING Digital beamformer with 1024 system processing channel technology
H*W*D m (inch.) 1.62 * 0.61 * 0.99 (64 * 24 * 39)
WEIGHT 202 kg (408 lb.)
POWER CONSUMPTION less than 2 KVA
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• View the news results for 'LOGIQ® 9' (2).



 Further Reading:
  Basics:
LOGIQ 9 Image LibraryOpen this link in a new window
   by www.logiqlibrary.com    
US Resources  
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 • Obstetric and Gynecologic Ultrasound
 • Ultrasound Imaging Modes
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 • Ultrasound Picture
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