Comparison of computed tomography and pluridirectional tomography of the temporal bone.
During pluridirectional tomography dense bone creates ghost shadows that simulate chronic disease and soft-tissue masses within the middle ear cavity. This effect was demonstrated in three dried skulls. Cholesteatomas were simulated in three more temporal bones with a mixture of 2% iodine in paraffin. Three different high-resolution computed tomographic scanners clearly demonstrated middle ear anatomy and the simulated soft-tissue masses in the skulls.
D002781:Cholesteatoma / Q000000981:diagnostic imaging; D004427:Ear Diseases / Q000000981:diagnostic imaging; D004432:Ear, Middle / Q000000981:diagnostic imaging; D006801:Humans; D013702:Temporal Lobe / Q000000981:diagnostic imaging*; D014056:Tomography, X-Ray; D014057:Tomography, X-Ray Computed