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ProbeInfoSheet: Probes/Transducers
Intro,
Probes, 
TransducersMRI Resource Directory:<br> - Probes Transducers -
 
In medical ultrasound, probe refers to the ultrasound transducer. The probe covers the elements, backing material, electrodes, matching layer and protective face that both sends and receives the sound waves. The reflected ultrasound waves are received by the probe and generate a signal. Most probes emit only for 10% of time and receive for the remaining 90% of time.
Probes come in different shapes and sizes for use in different scanning situations. The most common mechanical transducers are oscillating probes and the rotating probes driven by a motor. Mechanical probes produce excellent images, but are more subject to wear than electrical probes. Electrical probes are generally more expensive than mechanical probes.
See also Omnidirectional, Probe Cleaning, and Multi-frequency Probe.
Radiology-tip.comCryotherapy,  Radiation Meter
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Radiology-tip.comTransmit Receive Coil,  Coil
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• Related Searches:
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 Further Reading:
  Basics:
Medical Physics: Ultrasound - extended reading exerciseOpen this link in a new window
   by www.cyberphysics.pwp.blueyonder.co.uk    
  News & More:
Duke Engineers Develop New 3-D Cardiac Imaging ProbeOpen this link in a new window
Friday, 27 May 2005   by www.sciencedaily.com    
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FlowprobeInfoSheet: Probes/Transducers
Intro,
Probes, 
TransducersMRI Resource Directory:<br> - Probes Transducers -
 
A flowprobe (or flowsensor) measures flow with a transducer by insonating vessels to calculate and depict volume flow of blood.
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US Resources  
Artifacts - History of UltraSound - Rental - Ultrasound Therapy - Directories - Ultrasound Guided Interventions
 
Convex ProbeInfoSheet: Probes/Transducers
Intro,
Probes, 
TransducersMRI Resource Directory:<br> - Probes Transducers -
 
The convex shape of the probe allows scanning a larger area than with a smaller array. Convex probes produce sector images.
See also Convex Transducer.
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Linear ProbeInfoSheet: Probes/Transducers
Intro,
Probes, 
TransducersMRI Resource Directory:<br> - Probes Transducers -
 
A linear probe contains one or more acoustic linear array transducer elements arranged in a line to send pulses of sound into a material. The linear array gives a large probe surface (footprint) and near field. In Doppler mode, a linear probe operates a subset of its elements as a linear phased array and can thus steer the Doppler beam at a selected angle to the imaging beam. This is a popular configuration for peripheral vascular and perivascular scanning.
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 Further Reading:
  Basics:
Ultrasonic Testing Using Phased ArraysOpen this link in a new window
   by www.ndt.net    
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Rectal ProbeInfoSheet: Probes/Transducers
Intro,
Probes, 
TransducersMRI Resource Directory:<br> - Pelvic -
 
A rectal probe is a small ultrasound transducer with high frequency that is inserted directly into the rectum. Transrectal ultrasound is a well established examination for rectal or prostate carcinoma assessment. Rectal probes (e.g., a microconvex probe) generate a much sharper image, caused by the close proximity to the prostate or rectum, and the higher sensitivity.
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 Further Reading:
  Basics:
TRANSRECTAL ULTRASOUND (TRUS) GUIDED BIOPSY OF THE PROSTATE(.pdf)Open this link in a new window
   by urology.ucsf.edu    
  News & More:
Biplane ultrasound arrays with integrated multiplexing solution for enhanced diagnostic accuracy in endorectal and transvaginal imaging(.pdf)Open this link in a new window
   by www.ncbi.nlm.nih.gov    
US Resources  
DICOM - Rental - Non-English - UltraSound Training Courses - Musculoskeletal and Joint - Ultrasound Therapy
 
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