Lonizing radiation dose rate measurements in central nervous system diseases [Santral sinir sistemi hastali{dotless}klari{dotless}nda İyonize radyasyon doz oran ölçümleri]

Objective: to assess ionizing radiation dose rate in certain central nervous system patients with a commercially available geiger-müller (gm) survey meter. material and method: a hundred neurosurgical ward patients,patiens in intensive care unit and out-patient with 25 healty human were evaluated in this study. measurements were obtained at a distance from 5 up to 10mm from the right side of the neck near thyroid gland for intracranial involement. for the cervical,thoracal and lumbar locations involved site were used for each individual patients. results: an average of 0.15 μsv/hr radiation were found for the patients group where as 0.13 μsv/hr for the healthy group. a statistically significant higher values obtained in infected,hydatid cyst,myelitis group of patients up to 0.27 μsv/hr (mean 0.20 μsv/hr) (p<0.00001). conclusion: inflammation in cns may cause increase in ionizing radioactivity.