When imaging long bones, which of the following is (are) correct statements?
1)Choose a large enough IR so that one or both joints are included on the projection.
2)Extend the collimation field so it extends 1 to 2 inches (2.5 cm to 5 cm) beyond the joints spaces as required.
3)Histogram errors may occur if the system algorithm does not recognize a diagonal exposure field.
4)Align the long bone parallel to the IR to prevent a histogram analysis error.
A) 1 only
B) 4 only
C) 1, 2, and 4 only
D) 1, 2, 3, and 4

Question

Quizplus · Accepted Answer

1) Including one or both joints on the projection is important for diagnostic purposes. 2) Extending the collimation field beyond the joint spaces ensures the entire area of interest is captured. 3) Histogram errors can occur if the system's algorithm fails to recognize an irregularly shaped exposure field, such as a diagonal one. 4) Aligning the long bone parallel to the IR helps in preventing histogram analysis errors by ensuring the exposure field is recognized correctly by the system.

When Imaging Long Bones, Which of the Following Is (Are)