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'''Ultrasound''' is [[sound]] composed of frequencies in excess of 20,000 [[Hertz]] (20 kHz).  Ultrasound falls outside the range of normal [[human]] hearing ability.
 
'''Ultrasound''' is [[sound]] composed of frequencies in excess of 20,000 [[Hertz]] (20 kHz).  Ultrasound falls outside the range of normal [[human]] hearing ability.
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The '''ultrasound''' technology is particularly effective and affordable for viewing an unborn child in a pregnant woman, in a procedure known as a '''sonogram'''.  About 80% of women considering having an [[abortion]] change their mind and keep their child after viewing an ultrasound of him or her. Modern ultrasounds have the ability to acquire images in 3D & 4D.
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Modern ultrasounds have the ability to acquire images in 3D & 4D.
    
Types of ultrasounds include shared service machines, portable notebooks and handheld ultrasounds.
 
Types of ultrasounds include shared service machines, portable notebooks and handheld ultrasounds.
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* Cleaning.
 
* Cleaning.
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One of the most notable applications is in sonograms, which have particular effectiveness in the [[pro-life]] movement; after seeing their unborn child(ren) insider of her, about 80% of women considering having an [[abortion]] change their mind and carry the child(ren) to term.
    
[[Category:Physics]] [[Category:Medicine]]
 
[[Category:Physics]] [[Category:Medicine]]
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