Sources of artifacts in rotational scanography

R. Moore, D. Korbuly, F. Kotula, W. Castaneda-Zuniga, K. Amplatz

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)333-340
Number of pages8
JournalFortschritte auf den Gebiete der Rontgenstrahlen und der Nuklearmedizin
Volume137
Issue number3
StatePublished - Dec 1 1982

ASJC Scopus subject areas

  • Medicine(all)

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    Moore, R., Korbuly, D., Kotula, F., Castaneda-Zuniga, W., & Amplatz, K. (1982). Sources of artifacts in rotational scanography. Fortschritte auf den Gebiete der Rontgenstrahlen und der Nuklearmedizin, 137(3), 333-340.