Abstract
A technique for three-dimensional (3D) computed tomography (CT) of the paranasal sinuses
was evaluated. The influence of milliamperage and reconstruction algorithms on image
quality was studied in a phantom. Eleven patients with bony abnormalities of the paranasal
sinuses underwent CT to assess the clinical impact of 3D CT protocol. Contiguous 1.5-mm
sections obtained at 120 kVp/ 175 mA/ 1.9 sec can provide 3D images with high diagnostic
image quality. This technique offers the advantage of a much lower dose than that
of the conventional CT (CCT) examination of paranasal sinuses. Three-dimensional CT
protocol of paranasal sinuses is suggested for use for the evaluation of bony abnormalities
and for preoperative planning of the above region.
Keywords
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Article info
Publication history
Accepted:
July 10,
1997
Received:
May 20,
1997
Identification
Copyright
© 1998 Elsevier Science Inc. Published by Elsevier Inc. All rights reserved.
