Continued improvement of medical care has decreased the mortality of very premature births. The higher number of preterm neonates (PN) results in higher acuity patients and extended hospital stays, and a consequence needs for diagnostic exams.
As tissue radiosensitivity is inversely related to age, it becomes particularly crucial in this group of patients with yet rapidly proliferating and differentiating cells to keep radiation exposure as low as reasonably achievable (ALARA).
The aim of this study is to establish an analytic baseline of radiation exposure of...
Description of activity and work performed
We perform a retrospective analysis for a six months period, including preterm neonates admitted to the NICU with a gestational age between 24 and 34 weeks (included) ( Fig. 2).
We analyze the number and type of radiological studies looking for x-rays, fluoroscopy, and CT scans, and estimate the cumulative effective radiation dose (ERD) using a reference table (Table 1). Also, we classify the x-ray as optimal or suboptimal collimation of the x-ray beam according to a certified board radiology qualitative observation ( Fig. 3)....
Conclusion and recommendations
A total of 23 PN were included and analyzed. The mean age of the patients was 31.61 gestational age birth,with a meantime of NICU stay of 30.83 days ( Fig. 4).
The average of x-rays was 10.17/patient, only one head CT scan was performed, and the cumulative ERD was 0.21 mSv/patient (range 0-1.82 mSv).
From 234 x-rays, 214 were classified as suboptimal collimated (91.45%).
The x-rays/day index results in 0.33 x-rays/day (or one x-ray every three days). Only one patient exceeds the upper control limit...
A. Urtasun; Buenos Aires, BU/AR - nothing to disclose F. N. Diaz; Buenos Aires, BA/AR - nothing to disclose M. Ulla; Pilar- Buenos Aires/AR - nothing to disclose M. A. D. C. Marquez Bravo; Buenos Aires/AR - nothing to disclose N. G. Racioppo; Buenos Aires/AR - nothing to disclose S. R. Garcia Lopez; Buenos Aires/AR - nothing to disclose
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