Question

For a routine CT exam of the pelvis, what gantry tilt is used?

1) 20 degrees
2) -20 degrees
3) 10 degrees
4) no tilt

Answer 1

In a routine CT scan of the pelvis, the gantry is typically set to 0 degrees or no tilt. Gantry tilt adjustments are used in scanning areas of complex anatomy or to avoid artifacts, which is not usually required for pelvic CT exams.

Step-by-step explanation:

For a routine CT (Computed Tomography) exam of the pelvis, typically no gantry tilt is used. Gantry tilt is adjustable during CT imaging to avoid dental fillings or to reduce artifacts in the case of other areas like the head or neck, but for pelvic scans, the gantry is usually set to 0 degrees to ensure an accurate representation of the pelvic anatomy.

Gantry tilt adjustments are more common for areas with complex anatomy or where metal artifacts can cause significant image distortion. In such cases, the technologist might adjust the gantry to optimize the image quality. However, in routine pelvic CT scans, this is generally not necessary, and the scan protocol usually calls for no gantry tilt.