Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomography
The aim of this study was to evaluate the validity of the bone density value of potential implant sites in HU obtained by a specific cone-beam computed tomography (CBCT) device. In this study, the HU values obtained using a MSCT scanner were used as the gold standard. Twenty mandibles (40 potential...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Sociedade Brasileira de Pesquisa Odontológica
2012-12-01
|
Series: | Brazilian Oral Research |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242012000600011 |
id |
doaj-5f7fddc7a326429ab73830fbe53f6da4 |
---|---|
record_format |
Article |
spelling |
doaj-5f7fddc7a326429ab73830fbe53f6da42020-11-25T02:50:07ZengSociedade Brasileira de Pesquisa Odontológica Brazilian Oral Research1806-83242012-12-0126655055610.1590/S1806-83242012000600011Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomographyIsabela Maria de Carvalho Crusoé SilvaDeborah Queiroz de FreitasGlaucia Maria Bovi AmbrosanoFrab Norberto BóscoloSolange Maria AlmeidaThe aim of this study was to evaluate the validity of the bone density value of potential implant sites in HU obtained by a specific cone-beam computed tomography (CBCT) device. In this study, the HU values obtained using a MSCT scanner were used as the gold standard. Twenty mandibles (40 potential implant sites) were scanned using an MSCT scanner (Somatom Sensation 40) and a CBCT scanner (i-CAT). The MSCT images were evaluated using the Syngo CT Workplace software and the CBCT images, using the XoranCat software. The images were evaluated twice by three oral radiologists, at 60 day intervals. The trabecular bone density of the same area was evaluated on both images. Intraclass coefficients (ICC) were calculated to examine the agreement between the examiners and between the two periods of evaluation. The bone density and area of the ROI were compared by the Student t test and Bland-Altman analysis. ICCs were excellent. The mean HU value obtained using CBCT (418.06) was higher than that obtained using MSCT (313.13), with a statistically significant difference (p < 0.0001). In addition, Bland-Altman analysis showed that the HU measures were not equivalent. In conclusion, the bone density in HU with CBCT images obtained using the device studied proved unreliable, since it was higher than that obtained using MSCT.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242012000600011TomographyX-Ray ComputedCone-Beam Computed TomographyBone DensityDental Implants |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Isabela Maria de Carvalho Crusoé Silva Deborah Queiroz de Freitas Glaucia Maria Bovi Ambrosano Frab Norberto Bóscolo Solange Maria Almeida |
spellingShingle |
Isabela Maria de Carvalho Crusoé Silva Deborah Queiroz de Freitas Glaucia Maria Bovi Ambrosano Frab Norberto Bóscolo Solange Maria Almeida Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomography Brazilian Oral Research Tomography X-Ray Computed Cone-Beam Computed Tomography Bone Density Dental Implants |
author_facet |
Isabela Maria de Carvalho Crusoé Silva Deborah Queiroz de Freitas Glaucia Maria Bovi Ambrosano Frab Norberto Bóscolo Solange Maria Almeida |
author_sort |
Isabela Maria de Carvalho Crusoé Silva |
title |
Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomography |
title_short |
Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomography |
title_full |
Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomography |
title_fullStr |
Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomography |
title_full_unstemmed |
Bone density: comparative evaluation of Hounsfield units in multislice and cone-beam computed tomography |
title_sort |
bone density: comparative evaluation of hounsfield units in multislice and cone-beam computed tomography |
publisher |
Sociedade Brasileira de Pesquisa Odontológica |
series |
Brazilian Oral Research |
issn |
1806-8324 |
publishDate |
2012-12-01 |
description |
The aim of this study was to evaluate the validity of the bone density value of potential implant sites in HU obtained by a specific cone-beam computed tomography (CBCT) device. In this study, the HU values obtained using a MSCT scanner were used as the gold standard. Twenty mandibles (40 potential implant sites) were scanned using an MSCT scanner (Somatom Sensation 40) and a CBCT scanner (i-CAT). The MSCT images were evaluated using the Syngo CT Workplace software and the CBCT images, using the XoranCat software. The images were evaluated twice by three oral radiologists, at 60 day intervals. The trabecular bone density of the same area was evaluated on both images. Intraclass coefficients (ICC) were calculated to examine the agreement between the examiners and between the two periods of evaluation. The bone density and area of the ROI were compared by the Student t test and Bland-Altman analysis. ICCs were excellent. The mean HU value obtained using CBCT (418.06) was higher than that obtained using MSCT (313.13), with a statistically significant difference (p < 0.0001). In addition, Bland-Altman analysis showed that the HU measures were not equivalent. In conclusion, the bone density in HU with CBCT images obtained using the device studied proved unreliable, since it was higher than that obtained using MSCT. |
topic |
Tomography X-Ray Computed Cone-Beam Computed Tomography Bone Density Dental Implants |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242012000600011 |
work_keys_str_mv |
AT isabelamariadecarvalhocrusoesilva bonedensitycomparativeevaluationofhounsfieldunitsinmultisliceandconebeamcomputedtomography AT deborahqueirozdefreitas bonedensitycomparativeevaluationofhounsfieldunitsinmultisliceandconebeamcomputedtomography AT glauciamariaboviambrosano bonedensitycomparativeevaluationofhounsfieldunitsinmultisliceandconebeamcomputedtomography AT frabnorbertoboscolo bonedensitycomparativeevaluationofhounsfieldunitsinmultisliceandconebeamcomputedtomography AT solangemariaalmeida bonedensitycomparativeevaluationofhounsfieldunitsinmultisliceandconebeamcomputedtomography |
_version_ |
1724740074065625088 |