3-D Volume Rendering Maxillofacial Analysis of Angular Measurements by Multislice CT

Overview

Journal Oral Surg Oral Med Oral Pathol Oral Radiol Endod

Publisher Elsevier

Specialties Dentistry
General Surgery

Date 2008 Jan 31

PMID 18230391

Citations 23

Authors

Patricia M L Lopes

Carla R Moreira

Andreia Perrella

Jose L Antunes

Marcelo G P Cavalcanti

Affiliations

Soon will be listed here.

Abstract

Objective: This study was designed to determine the precision and accuracy of angular measurements using three-dimensional computed tomography (3D-CT) volume rendering by computer systems.

Study Design: The study population consisted of 28 dried skulls that were scanned with a 64-row multislice CT, and 3D-CT images were generated. Angular measurements, (n = 6) based upon conventional craniometric anatomical landmarks (n = 9), were identified independently in 3D-CT images by 2 radiologists, twice each, and were then performed by 3D-CT imaging. Subsequently, physical measurements were made by a third examiner using a Beyond Crysta-C9168 series 900 device.

Results: The results demonstrated no statistically significant difference between interexaminer and intraexaminer analysis. The mean difference between the physical and 3-D-based angular measurements was -1.18% and -0.89%, respectively, for both examiners, demonstrating high accuracy.

Conclusion: Maxillofacial analysis of angular measurements using 3D-CT volume rendering by 64-row multislice CT is established and can be used for orthodontic and dentofacial orthopedic applications.

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