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Color Doppler ImagingInfoSheet: - Modes - Intro, Overview, Types of, etc.MRI Resource Directory:<br> - Modes -
 
(CDI) Color Doppler imaging depicts the mean frequency shifts of the Doppler signal. Color [colour, Brit.] Doppler imaging is a method for visualizing direction and velocity of movement, such as of blood flow within the cardiac chambers or blood vessels. The flow direction and velocity information gathered by Doppler ultrasonography is color coded onto a gray scale cross-sectional image. The sensitivity of Doppler ultrasound is increased in conjunction with the use of vascular contrast agents.
Direction and blood flow velocity are coded as colors and shades:
Red - flow coming nearer to the probe.
Blue - flow coming away of the probe.
See also Bi-directional Illumination, Color Map.
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• View the news results for 'Color Doppler Imaging' (1).


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 Further Reading:
  News & More:
Success Rate of Transcranial Color-Coded Duplex Ultrasonography in Visualizing the Basal Cerebral Arteries in Vascular Patients Over 60 Years of AgeOpen this link in a new window
Thursday, 1 July 1999   by stroke.ahajournals.org    
Evaluation of lower extremity bypass grafts with use of color duplex sonographyOpen this link in a new window
Thursday, 30 June 2005   by radiographics.rsna.org    
Searchterm 'probe' was also found in the following service: 
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Radiology  (2) Open this link in a new windowMRI  (5) Open this link in a new window
Color Power AngioInfoSheet: - Modes - Intro, Overview, Types of, etc.MRI Resource Directory:<br> - Modes -
 
(CPA) Color power angio is a Doppler measurement, which employs the Doppler effect to assess whether blood is moving towards or away from the probe. By calculating the frequency shift of a particular sample volume, its speed and direction can be determined and visualized. This is particularly useful in cardiovascular studies and essential in many areas such as determining reverse blood flow in the liver vasculature in portal hypertension. The CPA information is displayed as a color image superimposed on the 2D gray scale image.
See also Color Power Doppler.
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Convex TransducerInfoSheet: Probes/Transducers Intro, Probes, TransducersMRI Resource Directory:<br> - Probes Transducers -
 
Convex transducers are today standard on every new scanner. A convex surface allows the scanning of a larger area with a smaller array. The method of focusing and beam sweeping of a convex or curvilinear / curved array is similar to a linear array transducer, except of the shape of the probe and the sector format of the created image.
The better fit to the body, caused by the curved shape with smaller convex contact surface, and the wider field of view further from the transducer face are advantages in abdominal ultrasound.
However, also a convex array is often too large to image the heart when probing between the ribs. Caused by combining a large field of view with smallest array size, phased array transducers are the best choice in cardiac ultrasound.
See also Curved Transducer.
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 Further Reading:
  News & More:
Ultrasound renal anatomyOpen this link in a new window
   by rad.usuhs.mil    
Searchterm 'probe' was also found in the following services: 
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CTS-200InfoSheet: - Devices - Intro, TypesMRI Resource Directory:<br> - Devices Machines Scanners Systems -
 
www.siui.com/english/product/200.htm

From SIUI Inc.;
'The SIUI CTS-200 is one of few "linear only" units to be developed with a digital scan converter to process all incoming signals. With a digital processor, not only is the incoming signal processed faster but less noise is introduced into the signal path. The images are cleaner, crisper than you have experienced, even in machines at many times the price.'
'CTS-200 is suitable to a wide range of examination of liver, gallbladder, kidney, spleen, pancreas, thyroid gland, breast, uterus, urinary bladder, OB/GYN, etc. It is a portable ultrasound scanner of high performance.'

Device Information and Specification
APPLICATIONS See description above
CONFIGURATION Portable, gray scale(256)
TRANSDUCERS Linear
PROBES STANDARD 1 * 3.5MHz Linear Probe EZU-PL21
PROBES FREQUENCY 3.5MHz, 7.5MHz
IMAGING MODES B-mode,B/M, M-mode,B+B mode
IMAGING OPTIONS ×1, ×1.5, ×2 as well as depth shift
OPTIONAL PACKAGE 7.5MHz Linear Probe EZU-PL23; 7.5MHz Transrectal Probe EUP-U23; 3.5MHz Biopsy Probe EUP-B11A; Trolley/Mobile Cart; ...
DATA PROCESSING Pre-processing, correlation-processing, interpolation
POWER REQUIREMENT AC 220V/110V, 50Hz/60Hz
POWER CONSUMPTION 0.05 KVA
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 Further Reading:
  Basics:
CTS-200Open this link in a new window
   by www.accessdata.fda.gov    
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Ultrasound pancreatic anatomyOpen this link in a new window
   by rad.usuhs.mil    
ultrasound characteristics of breast cancerOpen this link in a new window
   by rad.usuhs.mil    
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Radiology  (2) Open this link in a new windowMRI  (5) Open this link in a new window
CTS-200VInfoSheet: - Devices - Intro, TypesMRI Resource Directory:<br> - Devices Machines Scanners Systems -
 
www.siui.com/english/product/200v.htm

From SIUI Inc.;
'The CTS-285V is designed for the diagnosis of big and small animals. It can work with a 5.0MHz rectal probe, 7.5MHz rectal probe and 5.0MHz microconvex probe.'

The CTS-200 V is the veterinary version to the CTS-200.
For 'Device Information and Specification' see CTS-200

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