Medical Imaging Artifacts: Motion, Transient Interruption of Contrast, and Clothing

Beam hardening is a phenomenon that occurs when a monochromatic x-ray beam passes through an object.

Clothing artifacts are often misinterpreted by radiologists and require additional imaging studies.

Transient interruption of contrast is a type of motion artifact.

Photon starvation occurs in low attenuation areas.

Beam hardening results in a decrease in the mean beam energy.

Motion artifact is a type of flow artifact.

Radiographers usually ignore clothing artifacts and do not retake the image.

CT pulmonary angiography is immune to flow artifacts.

Beam hardening is similar to a low-pass filter.

Jewelry artifacts are rarely seen in imaging examinations.