A digital (CR) image taken of a lateral thoracic spine projection demonstrates poor visibility of the spine.The image was taken on a full 14 *17-inch (35 *43 cm) IR.The following factors were used during the exposure: 80 kV,80 mAs,40-inch (102 cm) SID,and collimation to the size of the IR.Which one of the following modifications will result in a more diagnostic image?
A) Decrease kV.
B) Decrease mAs.
C) Collimate to spine.
D) Increase SID.
Correct Answer:
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