A clinical pilot study of jawbone mineral density measured by the newly developed dualenergy cone-beam computed tomography method compared to calibrated multislice computed tomography

• Published in: Imaging science in dentistry pp. 295 - 299
• Main Authors: 김현정, 김지은, 추지연, 민정희, 장성호, 이상철, 편웅범, 서광석, 감명환, 구기태, 류인철, 명훈, 허민석
• Format: Journal Article
• Language: English
• Published: 대한영상치의학회 01.12.2019
• Subjects: 치의학
• ISSN: 2233-7822; 2233-7830
• DOI: 10.5624/isd.2019.49.4.295

Purpose: This clinical pilot study was performed to determine the effectiveness of dual-energy cone-beam computed tomography (DE-CBCT) in measuring bone mineral density (BMD). Materials and Methods: The BMD values obtained using DE-CBCT were compared to those obtained using calibrated multislice computed tomography (MSCT). After BMD calibration with specially designed phantoms, both DE-CBCT and MSCT scanning were performed in 15 adult dental patients. Three-dimensional (3D) Digital Imaging and Communications in Medicine data were imported into a dental software program, and the defined regions of interest (ROIs) on the 3-dimensional surface-rendered images were identified. The automatically-measured BMD values of the ROIs (g/cm3), the differences in the measured BMD values of the matched ROIs obtained by DE-CBCT and MSCT 3D images, and the correlation between the BMD values obtained by the 2 devices were statistically analyzed. Results: The mean BMD values of the ROIs for the 15 patients as assessed using DE-CBCT and MSCT were 1.09±0.07 g/cm3 and 1.13±0.08 g/cm3, respectively. The mean of the differences between the BMD values of the matched ROIs as assessed using DE-CBCT and calibrated MSCT images was 0.04±0.02 g/cm3. The Pearson correlation coefficient between the BMD values of DE-CBCT and MSCT images was 0.982 (r=0.982, P<0.001). Conclusion: The newly developed DE-CBCT technique could be used to measure jaw BMD in dentistry and may soon replace MSCT, which is expensive and requires special facilities. KCI Citation Count: 0