Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT

This study aim to evaluate the effect of different angle on bone density estimation based on HU on CT and CBCT scanning. A phantom of jaw was scanned using CT and CBCT machine from different angle (0, 15 and 30 degrees). The data were transformed into DICOM format and loaded into MIMICS software for...

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Main Authors: Genisa, Maya, Rajion, Zainul Ahmad, Mohamad, Dasmawati, Pohchi, Abdullah, Abdul Kadir, Mohammed Rafiq, Shuib, Solehuddin
Format: Article
Published: Penerbit Universiti Kebangsaan Malaysia 2015
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Online Access:http://eprints.utm.my/id/eprint/58363/
http://dx.doi.org/10.17576/jsm-2015-4409-16
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spelling my.utm.583632021-12-16T11:28:58Z http://eprints.utm.my/id/eprint/58363/ Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT Genisa, Maya Rajion, Zainul Ahmad Mohamad, Dasmawati Pohchi, Abdullah Abdul Kadir, Mohammed Rafiq Shuib, Solehuddin Q Science (General) This study aim to evaluate the effect of different angle on bone density estimation based on HU on CT and CBCT scanning. A phantom of jaw was scanned using CT and CBCT machine from different angle (0, 15 and 30 degrees). The data were transformed into DICOM format and loaded into MIMICS software for density measurement. The density was measured at 9.55 mm from cemento-enamel junction (CEJ) on every different angle scanning data. Then these data were grouped as Group A1, A2 and A3 for CBCT group (0, 15 and 30 degrees, respectively) and Group B1, B2 and B3 for CT group (0, 15 and 30 degrees, respectively). The differences between the groups and the references (0 degree scanning) are measured statistically using SPSS software. In the CBCT data, the density reading at 15 and 30 degrees are higher than 0 degree scanning (mean difference =-155.63+62.61, p=0.03, mean difference =-33.13+84.24, p=0.206 for 15 and 30 degrees scanning, respectively). In the CT data, the density at 15 and 30 degrees scanning is lower than at 0 degrees scanning (mean different: 84.49+46.76, p=0.09 and 15.09+23.61, p=0.532). The differences are not significant statistically. Compared with CT, the effect of different angle scanning on density estimation on CBCT is stronger. These results showed that different angle scanning produce more error on density estimation based on HU on CBCT compared with CT. This study demonstrated that the uses of a CBCT and CT for density monitoring to evaluate bone density of jaws are affected by angle scanning. Penerbit Universiti Kebangsaan Malaysia 2015 Article PeerReviewed Genisa, Maya and Rajion, Zainul Ahmad and Mohamad, Dasmawati and Pohchi, Abdullah and Abdul Kadir, Mohammed Rafiq and Shuib, Solehuddin (2015) Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT. Sains Malaysia, 44 (9). pp. 1331-1337. ISSN 0126-6039 http://dx.doi.org/10.17576/jsm-2015-4409-16
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic Q Science (General)
spellingShingle Q Science (General)
Genisa, Maya
Rajion, Zainul Ahmad
Mohamad, Dasmawati
Pohchi, Abdullah
Abdul Kadir, Mohammed Rafiq
Shuib, Solehuddin
Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT
description This study aim to evaluate the effect of different angle on bone density estimation based on HU on CT and CBCT scanning. A phantom of jaw was scanned using CT and CBCT machine from different angle (0, 15 and 30 degrees). The data were transformed into DICOM format and loaded into MIMICS software for density measurement. The density was measured at 9.55 mm from cemento-enamel junction (CEJ) on every different angle scanning data. Then these data were grouped as Group A1, A2 and A3 for CBCT group (0, 15 and 30 degrees, respectively) and Group B1, B2 and B3 for CT group (0, 15 and 30 degrees, respectively). The differences between the groups and the references (0 degree scanning) are measured statistically using SPSS software. In the CBCT data, the density reading at 15 and 30 degrees are higher than 0 degree scanning (mean difference =-155.63+62.61, p=0.03, mean difference =-33.13+84.24, p=0.206 for 15 and 30 degrees scanning, respectively). In the CT data, the density at 15 and 30 degrees scanning is lower than at 0 degrees scanning (mean different: 84.49+46.76, p=0.09 and 15.09+23.61, p=0.532). The differences are not significant statistically. Compared with CT, the effect of different angle scanning on density estimation on CBCT is stronger. These results showed that different angle scanning produce more error on density estimation based on HU on CBCT compared with CT. This study demonstrated that the uses of a CBCT and CT for density monitoring to evaluate bone density of jaws are affected by angle scanning.
format Article
author Genisa, Maya
Rajion, Zainul Ahmad
Mohamad, Dasmawati
Pohchi, Abdullah
Abdul Kadir, Mohammed Rafiq
Shuib, Solehuddin
author_facet Genisa, Maya
Rajion, Zainul Ahmad
Mohamad, Dasmawati
Pohchi, Abdullah
Abdul Kadir, Mohammed Rafiq
Shuib, Solehuddin
author_sort Genisa, Maya
title Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT
title_short Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT
title_full Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT
title_fullStr Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT
title_full_unstemmed Effect of different angle scanning on density estimation based on hounsfield unit on CT and CBCT
title_sort effect of different angle scanning on density estimation based on hounsfield unit on ct and cbct
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2015
url http://eprints.utm.my/id/eprint/58363/
http://dx.doi.org/10.17576/jsm-2015-4409-16
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