The images produced in rotational scanography, currently under investigation at several institutions, may contain several kinds of artifacts. The sources of such artifacts are: vertical and horizontal misalignment of the focal spot with the axis of rotation; misalignment of the primary and secondary slits; a density gradient due to slit cut-off; vibration of the x-ray tube during rotation; a density gradient due to variation in motor speed; radiographic striations due to ripple of the tube output. Striations are present even if a 12-pulse generator is used, but they disappear if a constant potential generator is employed.
|Idioma original||English (US)|
|Número de páginas||8|
|Publicación||Fortschritte auf den Gebiete der Rontgenstrahlen und der Nuklearmedizin|
|Estado||Published - dic 1 1982|
ASJC Scopus subject areas