Clinical Trial Details
— Status: Not yet recruiting
Administrative data
| NCT number |
NCT05847777 |
| Other study ID # |
ORAD3 -3 -1 |
| Secondary ID |
|
| Status |
Not yet recruiting |
| Phase |
|
| First received |
|
| Last updated |
|
| Start date |
August 1, 2023 |
| Est. completion date |
May 1, 2025 |
Study information
| Verified date |
May 2023 |
| Source |
Cairo University |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Observational
|
Clinical Trial Summary
The objective of this study will be To assess the correlation of the 2-D and volumetric
maxillary sinus dimensions with the linear measurement of the mid-face width in adult
Egyptian individuals. The data collection will be obtained from the data base available at
the department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University.
CBCT images will be obtained from Egyptian patients who were referred to the CBCT unit in
oral and maxillofacial radiology department for different purposes. The following
radiographic examination will be done in Oral and Maxillofacial Radiology Department, Faculty
Dentistry, Cairo University. semiautomated segmentation will be performed for the maxillary
sinus in both side and then linear and volumetric measurements will be assessed for each
sinus. Also the width of midface will be assessed.
Description:
The objective of this study will be To assess the correlation of the 2-D and volumetric
maxillary sinus dimensions with the linear measurement of the mid-face width in adult
Egyptian individuals. The data collection will be obtained from the data base available at
the department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University.
CBCT images will be obtained from Egyptian patients who were referred to the CBCT unit in
oral and maxillofacial radiology department for different purposes. The following
radiographic examination will be done in Oral and Maxillofacial Radiology Department, Faculty
Dentistry, Cairo University. semiautomated segmentation will be performed for the maxillary
sinus in both side and then linear and volumetric measurements will be assessed for each
sinus. Also the width of midface will be assessed.
CBCT images will be analysed using Mimics software (version 21.0; Materialise, Leuven,
Belgium). To measure volumes of the maxillary sinuses, thresholding will be applied with
minimum and maximum limits of - 1024 HU and - 526 HU, respectively. The maxillary sinus will
be cropped using the software's "edit masks" tool along the following borders: around the
bone structure and narrowest space of the ostium between the infundibulum and the uncinate
process After this, three-dimensional (3D) models of the sinuses will be created and the
volumes of the right and left sinuses will be calculated separately by giving different
colors to the sinuses of the same patient.
Slice thickness will be maintained at 0.4 mm as a standard for further 2-D and 3-D
reconstruction.
All maxillary sinus measurements will be performed separately on the left and right sides.
For the maxillary sinus linear 2D measurements, each scan will be assessed for:
Maximal vertical diameter (maximal height) of the maxillary sinus (MSH) involves the longest
distance from the lowest point of the inferior wall to the highest point of the superior wall
in the adjusted sagittal image.
Maximal horizontal diameter (maximal width) of the maxillary sinus (MSW) involves the longest
distance perpendicular from the most prominent point of the medial wall to the most prominent
point of the lateral wall on the adjusted axial image.
Maximal anteroposterior diameter (maximal length) of the maxillary sinus (MSL) involves the
longest distance from the most anterior point of the anterior wall to the most posterior
point of the posterior wall on the adjusted the axial image.
To measure the midface width on CBCT adjusted coronal image, the most lateral and inferior
point of the maxillozygomatic suture (zm point) on both sides will be detected and measure
the distance between them.
To measure one side maxillary width, the distance between (zm point) of one side to mid
palatine will be recorded.
