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논문 기본 정보

자료유형
학술저널
저자정보
Shokri, Abbas (Dental Implant Research Center, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Hamadan University of Medical Sciences) Ramezani, Leila (Dental Implant Research Center, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Hamadan University of Medical Sciences) Bidgoli, Mohsen (Department of Periodontics, Faculty of Dentistry, Hamadan University of Medical Sciences) Akbarzadeh, Mahdi (Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences) Ghazikhanlu-Sani, Karim (Department of Radiology, Faculty of Para Medicine, Hamadan University of Medical Sciences) Fallahi-Sichani, Hamed (Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Hamadan University of Medical Sciences)
저널정보
대한영상치의학회 Imaging science in dentistry Imaging science in dentistry 제48권 제1호
발행연도
2018.1
수록면
31 - 39 (9page)

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Purpose: This study aimed to evaluate the effect of field-of-view (FOV) size on the gray values derived from cone-beam computed tomography (CBCT) compared with the Hounsfield unit values from multidetector computed tomography (MDCT) scans as the gold standard. Materials and Methods: A radiographic phantom was designed with 4 acrylic cylinders. One cylinder was filled with distilled water, and the other 3 were filled with 3 types of bone substitute: namely, Nanobone, Cenobone, and Cerabone. The phantom was scanned with 2 CBCT systems using 2 different FOV sizes, and 1 MDCT system was used as the gold standard. The mean gray values(MGVs) of each cylinder were calculated in each imaging protocol. Results: In both CBCT systems, significant differences were noted in the MGVs of all materials between the 2 FOV sizes(P<.05) except for Cerabone in the Cranex3D system. Significant differences were found in the MGVs of each material compared with the others in both FOV sizes for each CBCT system. No significant difference was seen between the Cranex3D CBCT system and the MDCT system in the MGVs of bone substitutes on images obtained with a small FOV. Conclusion: The size of the FOV significantly changed the MGVs of all bone substitutes, except for Cerabone in the Cranex3D system. Both CBCT systems had the ability to distinguish the 3 types of bone substitutes based on a comparison of their MGVs. The Cranex3D CBCT system used with a small FOV had a significant correlation with MDCT results.
#Cone-Beam Computed Tomography #Multidetector Computed Tomography #Bone Density

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참고문헌 (30)

참고문헌 신청
Machado GL / 2015 / CBCT imaging - a boon to orthodontics / Saudi Dent J 27:12~21 Crossref Eskandarloo A / 2012 / Comparison of cone-beam computed tomography with intraoral photostimulable phosphor imaging plate for diagnosis of endodontic complications: a simulation study / Oral Surg Oral Med Oral Pathol Oral Radiol 114:e54~e61 google schola Shokri A / 2013 / Diagnosis of simulated external root resorption using conventional intraoral film radiography, CCD, PSP, and CBCT: a comparison study / Biomed J 36:18~22 Crossref Shokri A / 2014 / Evaluation of the accuracy of linear measurements on lateral cephalograms obtained from cone-beam computed tomography scans with digital lateral cephalometric radiography: an in vitro study / J Craniofac Surg 25:1710~1713 Crossref Almog DM / 2007 / CT-based dental imaging for implant planning and surgical guidance / N Y State Dent J 73:51~53 google schola

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