"Validação das medidas lineares crânio-faciais por meio da tomografia computadorizada multislice em 3D" / Assessment of bone craniofacial measurements using multislice 3D-CT

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

This research objectives the assessment of the precision and accuracy (validity) of the linear craniofacial measurements in three-dimensional reconstructed volume rendered images (3D) using a multislice computed tomography (CT). The study population consisted of 10 (ten) dry skulls, previously selected, without distinction of ethnic group and sex, which were submitted to a multislice CT 16 slices using 0.5 mm of slice thickness and 0.3 mm of interval of reconstruction. Subsequently the data were sent to an independent workstation with Vitrea software. Conventional craniofacial points were localized and linear measurements were obtained by 02 examiners, previously calibrated, twice each, independently, in 3D images. The physical measurements were obtained by a third examiner using a digital caliper. The data analysis was carried out, regarding to inter and intra examiner, in 3D-CT, and between image and physical measurements from dry skulls, using ANOVA (analysis of variance). There were also no statistically significant differences between imaging and physical measurements with p>0.6 for all measurements. In conclusion, all the linear craniofacial measurements were considered accurate and precise using a 3D volume rendering technique by multislice CT.

ASSUNTO(S)

medidas ósseas face crânio computed tomography cranio tomografia computadorizada bone measurements face

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