A Radiograph of an AP Axial L5-S1 Projection Reveals That

question 4

Multiple Choice

A radiograph of an AP axial L5-S1 projection reveals that the joint space is not open.The following factors were used on this female patient: 80 kV, 40-inch (102-cm) SID, grid, 35° caudad angle, and CR centered to the ASIS.Which of the following factors needs to be modified to produce a more diagnostic image?

• A)Increase the CR angulation.
• B)Decrease the CR angulation.
• C)Change the direction of the CR angulation.
• D)Center the CR higher to place it parallel to the joint space.

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Definitions:

Dependent Samples T-Test

A statistical test used to compare the means of two related groups.

Regression

A statistical method used to model and analyze relationships between variables.

Obtained Value

The actual value or result achieved in an experiment or study, typically used in statistical analysis to compare against theoretical values.

Critical Value

The threshold value that the test statistic must exceed in order for the null hypothesis to be rejected in a hypothesis test.