Question

Which of the following types of compensating filters would primarily be used for shoulder images?

1) Wedge filter
2) Trough filter
3) Boomerang filter
4) Bowtie filter

Answer 1

A boomerang filter is primarily used for shoulder images to compensate for varying thickness and ensure a uniform exposure across the entire image.

Step-by-step explanation:

The type of compensating filter that is primarily used for shoulder images is the boomerang filter. Compensating filters are used in radiography to even out the density of an image by absorbing more photons in areas that are less dense, allowing for a more uniform exposure. The boomerang filter is specifically designed to accommodate the varying thickness around the shoulder area, providing better image quality for shoulder radiographs. For instance, when imaging a lateral view of the shoulder, there may be significant differences in density between the humerus and the soft tissue around it. The boomerang filter compensates for these variations, preventing overexposure of the thinner parts of the shoulder while ensuring adequate exposure of the denser humerus.