Anomalien und Normvarianten einmal anders: alltägliche und nicht alltägliche Artefakte - Teil I.

Artifacts can affect the diagnostic quality of the images. Artifacts must also be reduced in radiotherapy for precise treatment planning. Metallic implants can cause considerable artifacts in magnetic resonance imaging, in particular signal loss, signal pile-up, geometric distortions and fat suppression failure. The composition of the prosthesis material determines the extent of the artifacts and the quality of the MR images. CT also has to contend with metal artifacts. Image quality issues are also possible with ultrasound. [ABSTRACT FROM AUTHOR]