Where am I going?
This is what happens when it travels too far
What is attenuation?
The ability for a material to accept a charge
What is the Piezoelectric Effect?
The region around the focus
What is the focal zone?
These are the 3 formats of viewing ultrasound information
What is A-Mode, B-Mode and M-Mode?
These are the two types of diagnostic ultrasound
What are anatomical and functional ultrasound?
A method of rating numbers
What is a logarithm?
It is a natural ferroelectric material
What is Quart, Rochelle salts or tourmaline?
The diameter of the crystal is 9 mm; therefore, this is the focal width
What is 4.5 mm?
This is how many images are needed to create a grayscale image
What is at least 24 images?
This one has 4 pulses per scan line and hits the bullseye
What is an annular phased array transducer?
Attenuation causes these things to happen
What is absorption, reflection and scattering?
The range of frequencies within a pulse
What is bandwidth?
This is what happens when it's no longer within the maximum beam diameter
What is divergence?
I don't go by my given name, Axial
What is longitudinal, range, radial or depth?
The best of the best use this transducer
What is a linear phased array probe?
It's dependent on angle and returns from one direction
What is specular reflection?
This occurs when the thickness of the PZT is half the wavelength of the sound wave generated within it
What is resonant frequency?
According to this, it keeps its' shapely figure
What is Huygen's Principle?
This is how I determine LARRD
What is spatial pulse length divided by 2?
It does not have phased steering and tends to cause overlapping of scan lines
What is a linear sequential array transducer?
Intensity is solved by this equation
What is density x propagation speed?
Thinner active elements create these
What are pulses with higher frequencies and shorter wavelength cycles?
This is how the near zone length is determined
What is transducer diameter squared x operating frequency / 6?
These 3 things determine lateral resolution
What are beam width, beam focusing and scan line density?
During reception, multiple elements are excited which create electrical spikes and it can adjust the focus depth of pixels received
What is dynamic receive focusing?