Digital Radiographic Image Acquisition Systems Quiz

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Questions and Answers

What is the foremost difference between digital radiography and conventional radiography?

  • The dynamic range of the images
  • The resolution of the images
  • The technique of capture of the latent image (correct)
  • The method of post-processing

What is a disadvantage of digital radiography compared to conventional radiography?

  • Inability to perform edge enhancement
  • Difficulty in image acquisition
  • Limited dynamic range
  • Lower resolution (correct)

What is the principal component of a digital radiographic image acquisition system (DRIS)?

  • Digital detector (correct)
  • Analogue-to-digital converter (ADC)
  • Display unit
  • Processing unit

How are x-rays converted to electrical signals in digital radiography?

<p>Using a digital detector (D)</p> Signup and view all the answers

What is the role of the analogue-to-digital converter (ADC) in digital radiography?

<p>Converts electrical signals to digital data (C)</p> Signup and view all the answers

What is the role of an image matrix in digital imaging?

<p>It is the array of discrete units that makes up the entire digital image (A)</p> Signup and view all the answers

What is the primary function of a pixel in digital imaging?

<p>It is the square unit that forms the image matrix (B)</p> Signup and view all the answers

What is the difference between a pixel and a voxel in digital imaging?

<p>A pixel is a 2D representation, while a voxel includes a third dimension (B)</p> Signup and view all the answers

What is the process of photostimulable luminescence in digital radiography?

<p>Electrons absorb energy and move into f-zones upon exposure to x-ray photons (A)</p> Signup and view all the answers

How does the size of the image matrix affect image resolution in digital imaging?

<p>The larger the matrix size, the better the image resolution (D)</p> Signup and view all the answers

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