title: A study of the dose to the thyroid and the eye in computed tomography of the brain.
abstract: Thermoluminescent dosimeters were used to estimate the dose to the thyroid and the eye for routine clinical computed tomography of the brain using an EMI CT5005 scanner (20-sec data acquisition mode, bolus covering the head). The data can be summarized by the linear relations Dt = (7.5 +/- 0.8)N millirads (8 less than or equal to N less than or equal to 18) and De = (39 +/- 5)N + (1400 +/- 200)n millirads (8 less than or equal to N less than or equal to 20, 0 less than or equal to n less than or equal to 6) where Dt is the dose to the tissue anterior to the thyroid, De is the dose to the anterior tissue of the eyelid, N is the total number of CT cuts, and n is the number of cuts in which the globe of the eye is imaged.
mesh_terms: D005123:Eye / Q000528:radiation effects*; D006801:Humans; D011829:Radiation Dosage; D013819:Thermoluminescent Dosimetry; D013961:Thyroid Gland / Q000528:radiation effects*; D014057:Tomography, X-Ray Computed