Direct digital extraoral radiography of the head and neck with a solid-state linear x-ray detector

William D. McDavid, S. Brent Dove, Ulf Welander, Gunilla Tronje

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A narrow fan beam of x-rays intercepted by a linear array detector was used to acquire transmission data for a radiographic phantom moved across the beam. The digital data were displayed as images representing a variety of extraoral views of the head and neck. Projections investigated include the straight lateral view, two frontal projections, and a half-axial projection. The digital images appear to provide adequate contrast and resolution for common diagnostic tasks. In addition, the use of a scanning linear detector reduces the amount of scatter, which increases contrast relative to images made with an area detector. The system appears to provide a versatile and convenient means for the acquisition of extraoral views relevant to dental practice while it eliminates the logistical difficulties and errors associated with film processing.

Original languageEnglish (US)
Pages (from-to)811-817
Number of pages7
JournalOral Surgery, Oral Medicine, Oral Pathology
Volume74
Issue number6
DOIs
StatePublished - Dec 1992

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Dentistry(all)

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