Question: how to evaluate a radiograph? 

Answer: To evaluate a radiograph, you must ensure density and contrast are adequate, the image is free of motion and/or distortion (unless indicated by the projection), and all of the proper anatomy is visualized.  In the case of digital images, the expose factor (eg EI, S) must also be within range.\n\nTo diagnose a radiograph, see a radiologist. :-)
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