Intro to Diagnostic Imaging
The positive side of the x-ray tube.
What is the anode?
Collimation reduces this.
What is scatter radiation?
Phase of respiration preferred during exposure when taking thoracic radiographs.
What is peak inspiration (or inhalation)?
Decreasing this increases image contrast.
What is kVp?
Imaging modality that uses M-mode and color Doppler.
What is ultrasound?
The percentage of energy created in the x-ray tube that becomes x-ray photons.
What is 1 percent?
How lead defects in PPE appear in radiographs.
What is black?
The caudal collimation border for abdominal radiographs.
What is the greater trochanter?
Increasing this increases image density.
What is mAs?
This readily available medium can be used as a negative contrast agent.
What is air?
The location of the focal spot.
What is the anode?
Thicker tissue increases this.
What is scatter radiation?
Best position for radiographing the left lung.
What is right lateral recumbency?
Affects the energy and speed of electrons within the x-ray tube.
The radioisotope that is mostly attracted to bone.
What is technitium-99m
Material/element that makes up the x-ray filament.
What is tungsten?
Increasing this increases patient radiation dose.
What is mAs?
Best position for radiographing the heart.
What is sternal recumbency?
The appearance of dense tissues that absorb x-ray photons.
What is white?
The ultrasonography term used to describe structures that have the same echogenicity (i.e., they appear the same shade of gray).
What is isoechoic?
The charge of x-ray photons.
What is neutral charge?
What is the inverse square law?
Radiographic view in which the spine and sternum should be superimposed
What is V/D (or D/V) thoracic view?
Type of distortion that occurs when the object is not parallel to the image receptor.
What is foreshortening?
The imaging modality that uses imaging and a computer to generate cross-sectional images of internal structures.
What is computed tomography?