Head & neck · 2012
Usefulness of cone-beam CT for presurgical assessment of keratoma (cholesteatoma) of the maxillary sinus.
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Buric Nikola, Jovanovic Goran, Tijanic Milos
Аннотация
BACKGROUND: Evaluating the presurgical usefulness of cone-beam CT (CBCT) in the diagnosis and subsequent surgery of keratoma (cholesteatoma) of the maxillary sinus.
METHODS: CBCT scans were obtained by using 3-dimensional CT (3DCT) apparatus. The exposure factors had a field of view of 16 × 12 cm, 120 kVp, 7 mA, and an exposure time of 20 seconds. The acquired image data consisted of a 14-bit sensor that delivers 16,384 shades of gray with a standard isotropic cubic voxel size of 0.3 mm.
RESULTS: The CBCT scans clearly demonstrated a 22- × 16.82- × 17.62-mm expansile lesion in the left maxillary sinus area, with thin cortical plates, and a focal perforation of the medial cortical plate at the level of the apices.
CONCLUSION: All CBCT visual data provide impressive, full 3D images of maxillary sinus keratoma, and help us to perform successful surgery.
METHODS: CBCT scans were obtained by using 3-dimensional CT (3DCT) apparatus. The exposure factors had a field of view of 16 × 12 cm, 120 kVp, 7 mA, and an exposure time of 20 seconds. The acquired image data consisted of a 14-bit sensor that delivers 16,384 shades of gray with a standard isotropic cubic voxel size of 0.3 mm.
RESULTS: The CBCT scans clearly demonstrated a 22- × 16.82- × 17.62-mm expansile lesion in the left maxillary sinus area, with thin cortical plates, and a focal perforation of the medial cortical plate at the level of the apices.
CONCLUSION: All CBCT visual data provide impressive, full 3D images of maxillary sinus keratoma, and help us to perform successful surgery.