Abstract
Axial spiral CT of the temporal bones with a nominal slice thickness of 1 mm and 180° linear interpolation was performed in 13 patients. In 18 temporal bones, the spiral data set was used to reconstruct overlapping axial images with a table increment of 0.1 mm. These images gave additional information in four cases: in two by examining the heavily overlapping axial images themselves, and in two by obtaining supplementary information from secondary image reconstructions. In two cases less information was obtained than by using the conventional incremental images. This study shows that reconstructing overlapping slices can be useful, even if the temporal bone is scanned at 1 mm nominal slice thickness.
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Zonneveld FW (1983) The value of non-reconstructive multiplanar CT for the evaluation of the petrous bone. Neuroradiology 25: 1–10
Mafee MF, Kumar A, Tahmoressi CN et al (1988) Direct sagittal CT in the evaluation of temporal bone disease. AJR 9: 371–378
Manzione JV, Rumbaugh CL, Katzberg RW (1985) Direct sagittal computed tomography of the temporal bone. J Comput Assist Tomogr 9: 417–419
Chakeres DW (1984) Clinical significance of partial volume averaging of the temporal bone. AJNR 5: 297–302
Kalender WA, Seissler W, Klotz E, Vock P (1990) Spiral volumetric CT with single-breath-hold technique, continuous transport, and continuous scanner rotation. Radiology 176: 181–183
Rigauts H, Marchal G, Baert AL, Hupke R (1990) Initial experience with volume CT scanning. J Comput Assist Tomogr 14: 675–682
Kalender WA, Polacin A (1993) Image calculation at submillimetre table increments. Addendum to WIP SPIRAL-2 Operating Instructions. Siemens, Erlangen
Placin A, Kalender WA, Marchal G (1992) Evaluation of section sensitivity profiles and image noise in spiral CT. Radiology 185: 29–35
Kalender WA, Polacin A (1991) Physical performance characteristics of spiral CT scanning. Med Phys 18: 910–915
Turski P, Norman D, DeGroot J, Carpa R (1982) High-resolution CT of the petrous bone: direct vs. reformatted images. AJNR 3: 391–394
Kalender WA, Polacin A, Süss C (1994) A comparison of conventional and spiral CT: an experimental study on the detection of spherical lesions. J Comput Assist Tomogr 18: 167–176
Veillon F (1991) Imagerie de l'oreille. Flammarion, Paris, p 435
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Hermans, R., Marchal, G., Feenstra, L. et al. Spiral CT of the temporal bone: value of image reconstruction at submillimetric table increments. Neuroradiology 37, 150–154 (1995). https://doi.org/10.1007/BF00588634
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DOI: https://doi.org/10.1007/BF00588634