Thursday, January 25, 2024

use of high ratio grids is associated with.. pediatric radiography

use of high ratio grids is associated with:

  • 1. increased patient dose
  • 2. higher contrast
  • 3. pediatric radiography
  • A. 1 only
  • B. 1 and 2 only
  • C. 1and 3 only
  • D. 1,2 and 3

Out of the listed options, the most accurate answer is: B. 1 and 2 only

Here's why:

1. Increased patient dose:

This is true. High ratio grids absorb more scattered radiation, which can improve image quality. However, this comes at the cost of requiring a higher X-ray tube current to achieve the same film density. This translates to a higher radiation dose for the patient.

2. Higher contrast:

This is also true. By filtering out scattered radiation, high ratio grids improve the contrast between the desired anatomical structures and surrounding tissues. This makes the image sharper and easier to interpret.

3. Pediatric radiography:

This is not associated with the use of high ratio grids. In fact, due to the increased patient dose and potential for motion artifacts, high ratio grids are generally not recommended for pediatric radiography.

Therefore, considering both the benefits and drawbacks of high ratio grids, the correct answer is B. 1 and 2 only. They increase patient dose while simultaneously improving image contrast.

Remember, choosing the appropriate grid for a specific imaging task requires careful consideration of factors like patient age, desired image quality, and acceptable radiation dose. Consult a qualified radiographer or radiologist for guidance on selecting the optimal grid for your specific needs.