title: Sources of error in ultrasonography.
abstract: Sonograms often contain distortions and ghosts that may result in misinterpretations. The present work deals with some common artifacts and explains the reasons behind them. It is generally impossible to eliminate these effects, but if they are known, and if the equipment is used correctly and the examiner has sufficient experience of scanning, misdiagnoses can generally be avoided.
mesh_terms: D003951:Diagnostic Errors; D006801:Humans; D055585:Physical Phenomena; D010825:Physics; D014463:Ultrasonography / Q000295:instrumentation