Cone Beam Computed Tomographic Segmentation in Volumetric Measurements of Maxillary Sinus Using Different Soft Wares: A Validity and Reliability Study
试验速览
- 阶段
- 不适用
- 入组人数
- 10
- 主要终点
- Validity and reliability of CBCT semiautomatic segmentation in Volumetric measurements of maxillary sinus.
研究概览
简要总结
Cone Beam Computed Tomography (CBCT) has been used to assess the volume of the maxillary sinus using the manual and semi-automatic segmentation. The majority of researches stressed on the reduced accuracy of the automatic segmentation when compared to the real volume. Regarding the semi-automatic segmentation, there are researches assessed the volumetric measurement of the maxillary sinus and they reported that there is no significant difference between semi- automatic and the manual segmentation in CT.
详细描述
Automatic segmentation is believed to be less time consuming and more accurate in assessment of structures with regular border but fairly assessed the structures with irregular border like paranasal sinuses. The semi-automatic software is efficient and accurate as manual tracing with significant reduction in inter-observer variability and time . On the other hand, all neighboring contacting voxels located within a defined range (threshold) of similar HU values of different adjacent tissues may be measured so over calculation or under calculation could be suspected
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Sequential
- 主要目的
- Device Feasibility
- 盲法
- Single (Outcomes Assessor)
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Inclusion Criteria of participants of the In vitro part of the study:
- •Skulls with intact walls of maxillary sinus.
- •Skulls with dentulous or edentulous jaws.
- •Exclusion criteria of participants:
- •Skulls with missing parts of the maxilla that could be caused from traumatic injuries, diseases and space occupying lesions of maxilla.
- •Skulls with severe mutilation caused by environmental decay.
- •Inclusion Criteria of participants of the In vivo part of the study:
- •Patients without any pathosis affects maxillary sinus.
- •Patients with dentulous or edentulous jaws.
- •Exclusion criteria of participants:
- •Patients with traumatic injuries, diseases and space occupying lesions of maxilla.
- •Patients with sinus lifting or surgeries.
- •Patients with mucosal thickening more than 3mm
排除标准
- 未提供
研究组 & 干预措施
patient
CBCT Dicom file of patient has been scanned will be used for measurements of maxillary sinus volume by different software
干预措施: semiautomatic software (Device)
skulls
CBCT Dicom file of patient has been scanned will be used for measurements of maxillary sinus volume by different software
干预措施: semiautomatic software (Device)
结局指标
主要结局
Validity and reliability of CBCT semiautomatic segmentation in Volumetric measurements of maxillary sinus.
时间窗: 1 year
validity and reliability
次要结局
未报告次要终点
研究者
Reham Ashraf Hussien
principle investigator
Cairo University