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Plain radiographs may help, since about 15% of stones are radiopaque , but need not be done if other modalities available.
Because many injected substances are radiopaque , radiographs may help quantify the extent of the injury.
In another application, unitary catheters can feature radiopaque markers to determine distance.
Typically, spines and stingers are radiopaque , so radiography or ultrasonography may be used to locate any remaining pieces.
A plain film of the right calf was negative for fracture, dislocation or radiopaque foreign bodies.
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