sound waves are returned at random angles by reflection

refers to oscillation of molecules that result from a sound wave hitting a medium

number of cycles per second

Inversely related to Wavelength

Rate of vibration

Length of time to complete one cycle

Inversely proportional to frequency

How fast the sound waves move through the medium.

Is the length of one complete cycle.

Travels faster in a stiffer material

Resolving objects that lie above or below another

Sound passing through a medium

The time from the start of one pulse to the start of another pulse

Side to side resolution

The length of time to complete one cycle

Returns the signal to the transducer

Causes the signal to change path as it transitions between different mediums

Inversely proportional to density and directly proportional to stiffness

Absorption

Pressure Electric

Resolution that provides the ability to distinguish two separate objects that are close together

Resolution that provides the ability to distinguish two separate objects that are close together

Length (distance) of one complete cycle

Strength of the sound wave, measured in Watts

Crystals arranged in concentric rings with different frequencies of sound produced

Crystals arranged in concentric rings with different frequencies of sound produced

Determined by how hard the electrical pulse strikes the crystal

the number of cycles per second

electronic focusing

the rate energy travels through a medium

___ objects such as a mechanical valve prosthesis

___ areas are often poorly imaged

___ uses diagnostic imaging to measure blood flow through the kidneys

The unsuitable reflections generated when the sound wave strikes a highly reflective object creating artifacts is known as ____

uses diagnostic imaging to see the inside of the heart

Some common uses for diagnostic ultrasound include ___ and gynecology

the increase in reflection from objects that lie behind a weakly attenuating structure

the loss of information below an object bc the greater portion of the sound energy was absorbed or reflected back by the object

A deep penetrating fundamental frequency is emitted with a ___ overtone being detected

ends a continuous wave of sound into the tissue

in ___ mode, the echo is represented as dots on a screen that combine to form an image

the backing block ____ the movement of the crystal.

the ___ of the crystals produce the ultrasonic waves

The ___ is the part of the system in direct contact with the PT

___ is the distance a wave travels in a single cycle

Pressure electric

the resistance of a material to compression is known as stiffness

The bending of waves as they pass from one medium to another

In A-Mode, the ___ is represented by the distance between the spikes

The unit for wave frequency

The number of complete waveforms in one second

Harmonic mode often provides improved ____ resolution and reduced artifacts

Depth resolution is another name for ___ resolution

a reduction in amplitude and intensity

the strength of the wave

reflected sound

a medical imaging tech that uses high freq sound waves and their echoes

Wet laser imagers have ___ installation and operating cost due to waste management and ___

There are three types of laser based on technology: wet, ___, laser induced ___

Laser imagers have undergone continuous improvement to offer better resolution, ___ and ___ speed

An ___ modulator sits in the laser beam path and rapidly adjusts the laser ___ as the beam scans the film

An ___ screen intensifies the effect of the x-ray ___ by producing a larger number of light photons

Dynamic range is the maximum and minimum measurable ___ intensities

A latent image is a ____ image produced by the exposure of light to a photosensitive material

it is ___ possible to transfer images in the original quality produced by the modality itself

The position and intensity of the laser beam in a dry laser imager is controlled by a ___

Installation and maintenance of a dry laser imager is simple, since ___ connection and drains are not necessary

type of x-ray detector that uses electromagnetic waves to capture an image

the housing that holds the psp plate

the tray in a table or wall stand of an x-ray system that holds a film

this is a PSP that is stored inside a sturdy housing called a cassette

Removes the PSP plate from the cassette. Reads the latent image on the PSP plate with a laser to form the digital image sent to the Workstation

contains a computer and HQ greyscale monitor. Connected to PACS for transmission.