Imaging of the temporal bone in children using low-dose 320-row area detector computed tomography.

摘要: Introduction The aim of this study was to compare the image quality obtained using low-dose and standard-dose 320-row temporal bone computed tomography (CT) in paediatric patients. Methods Thirteen CT (120 kV/50 mAs) nine kV/100 images from children up 5 years age were compared for their quality. noise signal-to-noise ratio bone, fat air measured. Two observers assessed overall ability visualize 14 small anatomic structures a 5-point scale, with score 3-5 indicating imaging diagnostic Results Noise significantly higher lower CT. Although visibility several on reduced when CT, all scores 3 or >3. dose-length products 59.6 mGy·cm 119.3 mGy·cm, respectively. Conclusion Low-dose provides assessment middle inner ear anatomy, similar that provided by protocol, spite increased noise.