Рентгенология & Радиология, 2013, LII 265-269

Computed tomography in the diagnosis offractures of the maxillofacial area

I. Angelova, K. Velkova, G. Yordanov, Vl.Sirakov

Computed tomography (CT) is the current method of study in maxillofacial region, which produces crosssectional images of a specific area. There are still questions about methodology and radiation exposure. The aim of the present study is to evaluate the CT in diagnosis of fractures in maxillofacial region. 42 patients with traumatic injuries to the facial skeleton are examined. Fractures of maxilla are occurring in 14.6 % of patients with traumatic diseases. Fractures of maxilla and zygomatic bone are found in 29.3 percent of the traumatic event. Isolated nasal bone fracture is observed in 2.4% of all fractures. Compound fractures constitute 17.1% of the tested fractures. This group of patients are positioned at second place in frequency. Mandibular fractures ranked first in frequency – 36.6% of all traumatic lesions. The methods include: 1. Slice computed tomography in the axial and coronary projection 2. Spiral CT in axial projection and coronary one. 3. Cone Beam Computed Tomography. CT diagnosis is based on an analysis of all the images. It must comply with the data from other studies. When analyzing the results we found that the percentage of patients with primary diagnosis of fractured upper jaw is 11%, while CT diagnosis of this percentage increases to 16%. The percentage of patients with primary diagnosis fracture of mandibula and CT diagnosis is almost identical. In the present study, 3D and CT have similar results in the detection of fractures. Three-dimensional images clearly show the spatial anatomy of the face, the presence of fragments, as well as monitoring of fracture lines.