Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/5

Click to flip

5 Cards in this Set

  • Front
  • Back
Digital Subtraction Angiography (DSA)
an image constructed by superimposing a contrast image (usually blood-vessel network) with the normal x-ray image [which is subtracted].
What is DSA used for?
may show blood vessel blockages
Describe the process of computerised tomography.
A computer will create an image based on the quantified absorption at a specific point and angle. The more x-rays taken about the target, the higher the resolution.
What values is a computer using to generate an image?
Each pixel of a generated image is based on the measured linear attenuation coefficient
Describe 3 methods of CT scanning.
First generation - source and detector opposite from each other rotate around the patient.
Fourth generation - the x-ray source "sweeps" back and forth from one point
Spiral - scan the length of the body to obtain many projections