Knee and Shoulder

The knee and shoulder were grouped together due to having similar part thickness. Both a knee and a shoulder are greater than 10cm in size and therefore need a grid. With both parts being a similar size the kVp was set for both to the low 70s. We used previous knee exposure factors to set the exposure for both.

KNEE

*Lateral Knee

This Image is good because the knee is in a true lateral and the epicondyles are superimposed. The Patellofemoral joint is open and visible.

AP Knee

70 kVp 2.8 mAs

Grid 10:1

10x12 FOV

40" SID

DI 0.6

Oblique Knee

70 kVp 2.8 mAs

Grid 10:1

10x12 FOV

40" SID

DI 0.5

Lateral Knee

70 kVp 4.5 mAs

Grid 10:1

10x12 FOV

40" SID

DI 0

SHOULDER

*AP Shoulder

This Image of the shoulder is good because you can fully see the humeral head Inside the glenoid cavity, as well as the clavicle.

AP Shoulder

72 kVp 7.1 mAs

Grid 10:1

10x12 FOV

40" SID

DI 0.1

Transthoracic Shoulder

72 kVp 10@2 mAs

Grid 10:1

10x12 FOV

40" SID

DI -1.2

Scap Y Shoulder

72 kVp 4.5 mAs

Grid 10:1

10x12 FOV

40" SID

DI -0.3

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