High-quality image acquisition by double exposure overlap in dental cone beam computed tomography

Mark Plachtovics, Peter Bujtar, Maurice Mommaerts, Katalin Nagy

Research output: Contribution to journalArticle

3 Citations (Scopus)


Objective With a double exposure overlapping cone beam computed tomography (CBCT) scan technique, using CBCT acquisition radiation dose, the objective was to obtain apparent density similar to that of multidetector computed tomography (MDCT). Study Design Factory quality-assurance phantom and water phantom were used for the evaluation of apparent density fidelity of iCAT scans in different modes. Each scan's apparent density was analyzed for identical regions using ImageJ, version 1.42q. Results The iCAT Classic extended height acquisition with 4-cm central overlap and reconstruction of 2 groups of 300 projections per rotation for the water and quality-assurance CBCT phantoms resulted in improved apparent density fidelity. This apparent density accuracy was superior to that of iCAT scan at high resolution (600 projections during 1 rotation). Conclusions Using double exposure overlapping CBCT scans allows the analysis quality to be comparable with that of MDCT.

Original languageEnglish
Pages (from-to)760-767
Number of pages8
JournalOral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Issue number6
Publication statusPublished - Jun 2014

ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Pathology and Forensic Medicine
  • Dentistry (miscellaneous)
  • Radiology Nuclear Medicine and imaging

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