Figure 4. Bar graph shows comparison of upper-extremity imaging protocols. Of note, the number of images signifies the total number obtained in each upper extremity separately. One refers to the entire upper extremity (shoulder to hand) on one image. Two (A) refers to the humerus and forearm together on one image and the hand on a separate image. Two (B) refers to the humerus on one image and the forearm and hand together on one image. Three refers to the humerus, forearm, and hand each on a separate image.