Tailored low dose three-dimensional CT of paranasal sinuses


      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.


      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'


      Subscribe to Clinical Imaging
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect


        • Som P.M.
        CT of the paranasal sinuses.
        Neuroradiology. 1985; 27: 189-201
        • Zinreich S.J.
        • Kennedy D.W.
        • Rosenbaum A.E.
        • Gayler B.W.
        • Kumar A.J.
        • Stammberger H.
        Paranasal sinuses.
        Radiology. 1987; 163: 769-775
        • Zonnenveld F.W.
        • Fukuta K.
        A decade of clinical three-dimensional imaging.
        Invest Radiol. 1994; 29: 574-589
        • Altobelli D.E.
        • Kikinis R.
        • Mulliken J.B.
        • Cline H.
        • Lorensen W.
        • Jolesz F.
        Computer assisted three-dimensional planning in craniofacial surgery.
        Plast Reconstr Surg. 1993; 92: 576-585
        • Gholkar A.
        • Gillespie J.E.
        • Hart C.W.
        • Mott D.
        • Isherwood I.
        Dynamic low dose three dimensional computed tomography.
        BJR. 1988; 61: 1095-1099
        • Falk A.
        • Gielen S.
        • Heuser L.
        CT data acquisition as a basis for modern diagnosis and therapy in maxillofacial surgery.
        Int J Oral Maxillofac Surg. 1995; 24: 69-75
      1. Operator’s Manual, Release 2.0, Tomoscan LX. The Netherlands: Philips Medical Systems, 1989.

        • Sillers M.J.
        • Kuhn F.A.
        • Vickery C.L.
        Radiation exposure in paranasal sinus imaging.
        Otolaryngol Head Neck Surg. 1995; 112: 248-251
        • Roberts D.N.
        • Hampal S.
        • East C.A.
        • Lloyd G.A.S.
        The diagnosis of inflammatory sinonasal disease.
        J Laryngol Otol. 1995; 109: 27-30
        • Maclennan A.C.
        Radiation dose to the lens from coronal CT scanning of the sinuses.
        Clin Radiol. 1995; 50: 265-267
        • Shrimpton P.C.
        • Jones D.G.
        • Hillier M.C.
        Survey of CT Practice in the UK. Part 2. HMSO, London1991