title: Radiation dose in neuroradiological procedures.
abstract: Radiation dose is cumulative in the radiosensitive organs. In neuroradiology the organ of particular interest is the eye. There is an immutable physical relationship between spatial resolution, signal-to-noise ratio (i.e., density discrimination), and dose: Dose alpha (formula: see text). Optimal imaging conditions require a compromise between these three factors. The factors concerned in the effective utilisation of dose are discussed and the various compromises considered. Radiation dose measurements are given for a wide variety of neuroradiological procedures, including CT employing the EMI CT1010 and CT5005.
mesh_terms: D002533:Cerebral Angiography; D005123:Eye / Q000528:radiation effects*; D006257:Head / Q000000981:diagnostic imaging*; D006801:Humans; D011011:Pneumoencephalography; D011829:Radiation Dosage; D011874:Radiometry; D014056:Tomography, X-Ray; D014057:Tomography, X-Ray Computed