Abstract
Objective Portable X-rays remain one of the most frequently used diagnostic procedures in neonatal
intensive care units (NICU). Premature infants are more sensitive to radiation-induced
harmful effects. Dangers from diagnostic radiation can occur with stochastic effects.
We aimed to determine the radiation exposure in premature infants and staff and determine
the scattering during X-ray examinations in the NICU.
Study Design In this prospective study, dosimeters were placed on premature infants who were ≤1,250 g
at birth and ≤30 weeks of gestational age who stayed in the NICU for at least 4 weeks.
The doses were measured at each X-ray examination during their stay. The measurements
of the nurses and the doctors in the NICU were also performed with dosimeters over
the 1-month period. Other dosimeters were placed in certain areas outside the incubator
and the results were obtained after 1 month.
Results The mean radiation exposure of the 10 premature infants, monitored with dosimeters,
was 3.65 ± 2.44 mGy. The mean skin dose of the six staff was 0.087 ± 0.0998 mSV. The
mean scattered dose was 67.9 ± 26.5 µGy.
Conclusion Relatively high exposures were observed in 90% of the patients and two staff. The
radiation exposure levels of premature infants and staff may need to be monitored
continuously.
Key Points
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The premature infants are exposed to radiation due to the bedside X-rays.
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The radiation exposure levels of premature infants and staff may need to be monitored
continuously.
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Measures and alternative methods to reduce radiation exposure should be encouraged.
Keywords
bedside X-ray - neonatal intensive care unit - newborn - radiation exposure - staff
safety
