Importance of Correct Interpretation of Accidentally Recorded CT Images of
Intraocular Silicone Oil Administration
Chmelová J., Pastor Z., Komínek K.
Radiodiagnostický ústav FN, Ostrava, přednostka MUDr. S. Skotnicová Oční oddělení ZN, Vítkovice, primář MUDr. Z. Pastor Soukromá oční ambulance, Diagnostické centrum, Ostrava, MUDr. K. Komínek |
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Summary:
Liquid silicone is used in ophthalmology as one of the possible substitutes of the
vitreous body and for internal tamponade of the vitreous space in pars plana
vitrectomy (PPV). The intraocular presence of silicone causes marked changes of
the CT image of the bulbus. As the number of patients treated by PPV is steadily
increasing (this applies in particular to patients with diabetes and AIDS), the
probability increases that the radiologist will encounter this image. Typical
changes in the CT image of the bulbus after PPV using a silicone cerclage strip
with administration of silicone oil (SO) into the vitreous space: 1. Disfiguration
of the bulbus after application of the cerclage strip, 2. the area of the vitreous
body is visualized as a hyperdense area with a slitike hypodense space between
SO and the bulbar wall. Knowledge of these changes will avoid errors in the
interpretation of accidentally recorded CT images.
Key words:
CT, bulbus, PPV, silicone oil, AIDS
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