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[[File:Philips-IE33.jpg|right|thumb| Philips IE33 Ultrasound]]
[[File:Philips-IE33.jpg|right|thumb| Philips IE33 Ultrasound]]
'''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.
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.
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.
[[Category:physics]] [[Category:Medicine]]
[[Category:Physics]] [[Category:Medicine]]