Resumen
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) |
|---|---|
| Páginas (desde-hasta) | 333-340 |
| Número de páginas | 8 |
| Publicación | Fortschritte auf den Gebiete der Rontgenstrahlen und der Nuklearmedizin |
| Volumen | 137 |
| N.º | 3 |
| Estado | Published - dic 1 1982 |
ASJC Scopus subject areas
- Medicine(all)