Ultrasound
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| show | Lazaro Spallanzani
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| What year Lazaro Spallanzi document the waves from flying bats | show 🗑
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| show | Francis Galton
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| show | 1880
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| They noted that electricity maybe created by Piezoelectric Effect | show 🗑
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| show | Jacques and Pierre Curie
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| show | Robert Hooke
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| show | Lewis Fry Richard Soon, 1913
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| They invented Sonar (sound navigation and ranging or sonic navigation and ranging) and in what year | show 🗑
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| show | Robert Boyle
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| Type of ultrasound that is use for treatment | show 🗑
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| He created a system in which the receiver was a separate device collecting the waves in 1941 | show 🗑
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| He received a recognition for the Reflectoscope | show 🗑
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| show | Karl and Friederick Dussik-
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| Noted for developing the 1st application of ultrasound to the human body | show 🗑
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| He detected heart motions with a flaw detector and later called ECHOCARDIOGRAPHY in 1953 | show 🗑
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| show | VIDOSON
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| show | Richard Soldner
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| show | HEWLETT PACKARD 70020A
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| show | Ian MacDonald
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| show | Don Baker, Dennis Watkins, and John Reid
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| Color Doppler Sound Intruments in what year | show 🗑
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| He developed 3-D US captured images of fetus in 1980 | show 🗑
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| show | US
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| Travels in straight line through air or medium that can be heard | show 🗑
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| Bumping of particles creates what | show 🗑
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| show | Mechanical Wave
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| show | Amplitude
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| show | Compression
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| show | Frequency
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| show | Loudness
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| Describes the perceived highness or lowness of a sound wave | show 🗑
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| The region in the sound wave where the particles have been spread out and are the least dense part of the wave | show 🗑
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| show | Wavelength
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| show | > 20 000 Hz (20 KHz)
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| Active elements found in US Transducers | show 🗑
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| show | Piezoelectric Effect
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| show | Piezein = Squeez or Press
Piezo = Push
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| Less resolution but deeper penetration | show 🗑
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| show | Higher Frequencies
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| show | 1-6 mHz
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| mHz for muscles and tendons | show 🗑
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| show | TGC - Time Gain Compensation Amplifier
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| show | Attenuation
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| show | Divergence
Interference
Scatter
Diffraction
Absorption
Reflection
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| show | Specular Reflector
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| Small echoes, irregular shape and reflection returns in various directions (Soft Tissues) | show 🗑
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| show | Scatter
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| Occurs at interfaces involving structures of small dimensions | show 🗑
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| show | True
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| show | Gas or Solids
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| Why lungs can't be examined by US | show 🗑
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| show | False, not.
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| show | Absorption, Scattering, and Reflection
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| The higher the angle of incidence, the lesser sound scattering | show 🗑
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| show | True
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| show | True
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| show | Acoustic Impedance
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| Density and speed is directly proportional to acoustic impedance | show 🗑
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| show | Z = pv
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| show | Z = Acoustic Impedance
P = Density of medium
V = Speed of sound
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| Found in the body where sound wave travels the fastest | show 🗑
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| Found in the body where sound wave travels the slowest | show 🗑
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| show | Intensity Reflection Coefficient
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| show | TRUE
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| show | RF = [ ( Z2 - Z1 ) / ( Z2 + Z1 ) ] ^2
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| show | Echogenicity
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| Darker and less reflection | show 🗑
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| Brighter and more reflection | show 🗑
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| show | Anechoic - Air, Fluids
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| show | Isoechoic
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| show | Pulser - Trasnducer - Receiver
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| It applies high amplitude voltage to energize crystals | show 🗑
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| Converts electrical energy to mechanical energy | show 🗑
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| show | Receiver
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| show | Linear
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| show | Curvilinear
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| show | Transducer Probe, a central processing unit (CPU), a monitor, a keyboard with control knobs, disk storage devices, a printer and so on
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| A fluid medium needed to provide a link between transducer surface of the patient | show 🗑
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| Not a good coupling agent because it evaporates rapidly | show 🗑
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| Not a good coupling agent because it dissolves the rubber | show 🗑
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| show | Water Soluble Gel
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| Most Essential Component in US | show 🗑
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| Piezoelectric effect is also known as | show 🗑
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| show | Footprint
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| show | Probe Marker
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| Probe that is not good for curve structures but good near field resolution | show 🗑
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| Produces a fan like image and increase width in deeper penetration but poor near field resolution | show 🗑
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| show | Curvilinear
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| Has a small footprint with a Hz range of 5-12 MHz. Designed to fit in encocavitary spaces | show 🗑
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| show | Power/Output Control
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| Allows to increase and decrease field of view | show 🗑
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| Adjusts overall brightness | show 🗑
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| Allows adjustment of brightness at a specific depth of image | show 🗑
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| it is placed at the depth of interest | show 🗑
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| Allows image to be held frozen | show 🗑
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| Used for moving objects on monitor | show 🗑
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| show | Zoom
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| Mode of scanning or known as Brightness Mode and use to get back to grey scale imaging from color Doppler and/or Pulsed Wave Doppler | show 🗑
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| show | Measurement
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| show | A-mode or Amplifier Mode
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| If watched in a rapid sequence, they become real time images | show 🗑
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| show | Spectral Doppler or Pulsed Wave Doppler
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| show | Spectral Doppler or Pulsed Wave Doppler
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| Cursor line appears on the upper section of the image. Primarily to document motion | show 🗑
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| BART | show 🗑
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| Uses a color map to display information based on frequency | show 🗑
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| Uses a color map to show distribution of power or amplitude | show 🗑
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| show | Color flow knob
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| show | Continuous wave doppler unit
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| Measure the speed of blood in a vessel | show 🗑
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| show | The Doppler Effect
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