Validity of maxillary sinus volumetric measurements using the 3D orthogonal cone beam computed tomography images versus direct skull volumetric measurements: An in vitro study
Hamdy, R., Hussien, R., Dahaba, M. (2020). Validity of maxillary sinus volumetric measurements using the 3D orthogonal cone beam computed tomography images versus direct skull volumetric measurements: An in vitro study. EKB Journal Management System, 66(Issue 1 - January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)), 347-354. doi: 10.21608/edj.2020.77553
Reham Mohamed Hamdy; Reham Ashraf Hussien; Moushira Abd-el latif Dahaba. "Validity of maxillary sinus volumetric measurements using the 3D orthogonal cone beam computed tomography images versus direct skull volumetric measurements: An in vitro study". EKB Journal Management System, 66, Issue 1 - January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology), 2020, 347-354. doi: 10.21608/edj.2020.77553
Hamdy, R., Hussien, R., Dahaba, M. (2020). 'Validity of maxillary sinus volumetric measurements using the 3D orthogonal cone beam computed tomography images versus direct skull volumetric measurements: An in vitro study', EKB Journal Management System, 66(Issue 1 - January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)), pp. 347-354. doi: 10.21608/edj.2020.77553
Hamdy, R., Hussien, R., Dahaba, M. Validity of maxillary sinus volumetric measurements using the 3D orthogonal cone beam computed tomography images versus direct skull volumetric measurements: An in vitro study. EKB Journal Management System, 2020; 66(Issue 1 - January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology)): 347-354. doi: 10.21608/edj.2020.77553

Validity of maxillary sinus volumetric measurements using the 3D orthogonal cone beam computed tomography images versus direct skull volumetric measurements: An in vitro study

Egyptian Dental Journal
Article 19, Volume 66, Issue 1 - January (Oral Medicine, X-Ray, Oral Biology & Oral Pathology), January 2020, Page 347-354  XML PDF (600.08 K)
Document Type: Original Article
DOI: 10.21608/edj.2020.77553
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Authors
Reham Mohamed Hamdy1; Reham Ashraf Hussien2; Moushira Abd-el latif Dahaba3
1Assistant professor of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University
2Assistant lecturer of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University
3Professor of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University
Abstract
Introduction: the total volume of maxillary sinus is important for maxillofacial reconstruction, plastic surgeries and prosthetic rehabilitation. It is important to diagnose sinus hypoplasia secondary to craniofacial syndromes, sinus obliteration caused by infections or blood dyscrasis.
Aim of the study: The aim of this study was to assess the accuracy of CBCT volumetric measurements of maxillary sinus using the geometric rule of pyramid volume based on CBCT linear measurements versus real skull measurements.
Materials and methods: fourteen skulls were scanned using Planmeca Promax 3D MID and the maxillary sinus pyramid height, length and width were measured in cm. The volume of 24 sinuses were calculated from pyramid volume (cm3) = 1/3 Height × Length × Width. The CBCT volumes and the reference standard were analyzed for error assessment using Dahelberg error and Relative Dahelberg Error.
Results: 4.3- 4.7% was the error obtained from CBCT volumetric measurements using the rule of pyramid volume. 0.9 correlation was detected between the CBCT volume and the reference standard, between the observers and within the same observer.
Conclusion: the geometric rule of pyramid volume based on CBCT linear measurements can be used to assess maxillary sinus volume.
Keywords
Maxillary sinus; CBCT; linear measurements; pyramid volume; accuracy
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