The effect of system parameters on resolution in rotational panoramic radiography. A mathematical analysis

Å Bäckström, U. Welander, W. D. McDavid, G. Tronje, G. C.H. Sanderink

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The unsharpness in rotational panoramic radiography is the combined effect of motion unsharpness, screen-film unsharpness and geometrical unsharpness. A computer program was written to calculate the noise equivalent passband (Ne) from the modulation transfer function (MTF) of each of the three sources of unsharpness in both the horizontal and vertical dimensions for a typical panoramic machine. Effects on system resolution resolution resulting from changing the size of the focal spot, the screen-film combination, the width of the beam, and the effective projection radius were computed and the interaction of the various parameters was evaluated. Data of this type is essential for evaluation of system performance and for optimizing the operation of panoramic systems.

Original languageEnglish (US)
Pages (from-to)169-176
Number of pages8
JournalDentomaxillofacial Radiology
Volume18
Issue number4
DOIs
StatePublished - Nov 1989

Keywords

  • Diagnostic imaging
  • imaging techniques
  • radiography, panoramic

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Radiology Nuclear Medicine and imaging
  • Dentistry(all)

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