Comparative study between conventional and cone beam CT-synthesized half and total skull cephalograms.

Autor: Liedke GS; Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil. gabiliedke@yahoo.com.br, Delamare EL, Vizzotto MB, da Silveira HL, Prietsch JR, Dutra V, da Silveira HE
Jazyk: angličtina
Zdroj: Dento maxillo facial radiology [Dentomaxillofac Radiol] 2012 Feb; Vol. 41 (2), pp. 136-42.
DOI: 10.1259/dmfr/22287302
Abstrakt: Objectives: The aim of this study was to compare cephalometric measurements obtained from conventional cephalograms with total and half-skull synthesized cone beam CT (CBCT) cephalograms.
Methods: Cephalometric analyses of 30 clinically symmetric patients were conducted by a calibrated examiner on conventional and CBCT-synthesized cephalograms (total, right and left). Reproducibility was investigated using the intraclass correlation coefficient (ICC). The Bland-Altman analysis was used to assess the agreement of the measurements from each factor obtained by conventional, total, right and left CBCT-synthesized cephalograms.
Results: The ICC was above 0.9 for most of the 40 cephalometric factors analysed, revealing similar levels of reproducibility. When the measurements obtained from conventional and CBCT-synthesized cephalograms were compared, the Bland-Altman analysis showed a strong agreement between them.
Conclusions: Half-skull CBCT-synthesized cephalograms offer the same diagnostic performance and equivalent reproducibility in terms of cephalometric analysis as observed in conventional and total CBCT-synthesized cephalograms.
Databáze: MEDLINE
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