Difference between revisions of "Ultrasound"
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(About 80% of women considering having an abortion change their mind and keep their child after viewing an ultrasound of him or her.) |
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| + | [[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. | ||
| − | An '''ultrasound''' is particularly effective and affordable for viewing an unborn child in a pregnant woman. About 80% of women considering having an [[abortion]] change their mind and keep their child after viewing an ultrasound of him or her. | + | An '''ultrasound''' is particularly effective and affordable for viewing an unborn child in a pregnant woman. 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. |
== Applications == | == Applications == | ||
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* Non-destructive testing (NDT) and non-destructive evaluation (NDE) of materials. | * Non-destructive testing (NDT) and non-destructive evaluation (NDE) of materials. | ||
* Medical [[imaging]] and [[tissue characterization]]. See [[ultrasonic imaging]] and [[ultrasonic tissue characterization]] | * Medical [[imaging]] and [[tissue characterization]]. See [[ultrasonic imaging]] and [[ultrasonic tissue characterization]] | ||
| + | * Therapeutic ultrasound is sometimes recommended for muscle as well as joint pain. | ||
* Range finding ([[sonar]]). | * Range finding ([[sonar]]). | ||
* Cleaning. | * Cleaning. | ||
| − | [[Category:physics]] | + | [[Category:physics]] [[Category:Medicine]] |
Revision as of 05:11, November 16, 2010
Ultrasound is sound composed of frequencies in excess of 20,000 Hertz (20 kHz). Ultrasound falls outside the range of normal human hearing ability.
An ultrasound is particularly effective and affordable for viewing an unborn child in a pregnant woman. 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.
Applications
Ultrasound has a variety of applications, including
- Non-destructive testing (NDT) and non-destructive evaluation (NDE) of materials.
- Medical imaging and tissue characterization. See ultrasonic imaging and ultrasonic tissue characterization
- Therapeutic ultrasound is sometimes recommended for muscle as well as joint pain.
- Range finding (sonar).
- Cleaning.