Quality assessment of radiographic features of jaw pathologies in children using Cone-Beam Computerized Tomography

Ruth Eliyahu 1 Heli Rushinek 2 M Umansky 3 Michael Alterman 2 Jawad Abu-Tir 2 Guy Sharfi 2 Chen Nadler 3
1Medical Imaging, Hadassah Medical Center, Israel
2Department of Oral and Maxillofacial Surgery, Hadassah Medical Center, Israel
3Oral Maxillofacial imaging at Oral Medicine, Sedation and Imaging department, Hebrew University Hadassah School of Dental Medicine, Israel

PUPOSE: Radiography of intrabony lesions serves as a tool fordifferential diagnosis, lesion extension, suggestion for site of biopsy and follow up. These indications can be met by 3D imaging. The high radiation of Multi-Detector Computerized Tomography (MDCT), urges the need for an alternative, low-dose imaging, especially in children. The aim of this research was to compare the diagnostic quality of Cone Beam CT (CBCT) imaging with MDCT.

MATERIAL & METHODS:Retrospective analysis of 30 cases of children and adolescence (< 20) who underwent CBCT and/or MDCT was conducted. Images were anonymized and randomly reviewed by 3 pre-calibrated observers using questionnaire for various radiographic features including: field of view parameters, inclusion of lesion in scan region, pathological borders, effect on surrounding structure, soft tissue involvement and lesion size.

RESULTS: CBCT showed adequate performance in demonstrating essential radiographic features of intrabony lesions. Soft tissue involvement was suspected in the minority of cases.

CONCLUSION: Our study was limited due to small sample size. Yet, our results show that CBCT provides adequate radiographic features for intrabony jaw pathologies, compared to MDCT, especially in children, due to its reduced radiation dose. Pathologies with suspected soft tissue involvement, should have supplementary imaged using MRI.

Chen Nadler
Chen Nadler