Utility of the computed tomography indices on cone beam computed tomography images in the diagnosis of osteoporosis in women.
10.5624/isd.2011.41.3.101
- Author:
Kwang Joon KOH
1
;
Kyoung A KIM
Author Information
1. Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University, Jeonju, Korea. kkj1512@jbnu.ac.kr
- Publication Type:Original Article
- Keywords:
Cone-Beam Computed Tomography;
Osteoporosis;
Bone Density
- MeSH:
Absorptiometry, Photon;
Bone Density;
Cone-Beam Computed Tomography;
Female;
Femur;
Hand;
Humans;
Lumbar Vertebrae;
Osteoporosis
- From:Imaging Science in Dentistry
2011;41(3):101-106
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: This study evaluated the potential use of the computed tomography indices (CTI) on cone beam CT (CBCT) images for an assessment of the bone mineral density (BMD) in postmenopausal osteoporotic women. MATERIALS AND METHODS: Twenty-one postmenopausal osteoporotic women and 21 postmenopausal healthy women were enrolled as the subjects. The BMD of the lumbar vertebrae and femur were calculated by dual energy X-ray absorptiometry (DXA) using a DXA scanner. The CBCT images were obtained from the unilateral mental foramen region using a PSR-9000N(TM) Dental CT system. The axial, sagittal, and coronal images were reconstructed from the block images using OnDemend3D(TM). The new term "CTI" on CBCT images was proposed. The relationship between the CT measurements and BMDs were assessed and the intra-observer agreement was determined. RESULTS: There were significant differences between the normal and osteoporotic groups in the computed tomography mandibular index superior (CTI(S)), computed tomography mandibular index inferior (CTI(I)), and computed tomography cortical index (CTCI). On the other hand, there was no difference between the groups in the computed tomography mental index (CTMI: inferior cortical width). CONCLUSION: CTI(S), CTI(I), and CTCI on the CBCT images can be used to assess the osteoporotic women.
