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Journal of Dental Research, Dental Clinics, Dental prospects، جلد ۸، شماره ۲، صفحات ۱۰۷-۱۱۰
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عنوان انگلیسی Relationship between hounsfield unit in CT scan and gray scale in CBCT
چکیده انگلیسی مقاله Background and aims. Cone-beam computed tomography (CBCT) is an imaging system which has many advantages over computed tomography (CT). In CT scan, Hounsfield Unit (HU) is proportional to the degree of x-ray attenuation by the tissue. In CBCT, the degree of x-ray attenuation is shown by gray scale (voxel value). The aim of the present study was to investigate the relationship between gray scale in CBCT) and Hounsfield Unit (HU) in CT scan. Materials and methods. In this descriptive study, the head of a sheep was scanned with 3 CBCT and one medical CT scanner. Gray scales and HUs were detected on images. Reconstructed data were analyzed to investigate relationship between CBCT gray scales and HUs. Results. A strong correlation between gray scales of CBCT and HUs of CT scan was determined. Conclusion. Considering the fact that gray scale in CBCT is the criteria in measurement of bone density before implant treatments, it is recommended because of the lower dose and cost compared to CT scan.
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نویسندگان مقاله تهمینه رضی | tahmineh razi
assistant professor, department of oral and maxillofacial radiology tabriz university of medical science

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

مهدی نیکنامی | mahdi niknami
assistant professor, department of oral and maxillofacial radiology tehran university of medical science

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

فخری علوی غازانی | fakhri alavi ghazani
post graduate student department of oral and maxillofacial radiology tabriz university of medical science

سازمان اصلی تایید شده: دانشگاه تبریز (Tabriz university)

نشانی اینترنتی http://dentistry.tbzmed.ac.ir/joddd/index.php/joddd/article/view/1144
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/183/article-183-319732.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article
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