Claim: Calcaneal spurs are detected by an imaging technique.
Evidence: Calcaneal spurs are typically detected by a radiographic examination -LRB- commonly referred to as an `` x-ray '' -RRB-.
Radiography is an imaging technique using X-rays to view the internal structure of an object.
To create the image , a beam of X-rays , a form of electromagnetic radiation , is produced by an X-ray generator and is projected toward the object.
The generation of flat two dimensional images by this technique is called projectional radiography.