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Table 5 Assessment of equivalent units in relation to an X-ray chest examination in an adult

From: Paediatric CT scan usage and referrals of children to computed tomography in Germany-a cross-sectional survey of medical practice and awareness of radiation related health risks among physicians

Imaging procedure Patients age Under-estimation Correct answer Over-estimation n.a.*
Chest X-ray Newborn 16.3% 8.8% 67.8% 7.1%
Chest CT Adult 47.5% 31.5% 13.5% 7.5%
Chest CT Child 66.1% 21.7% 4.1% 8.1%
Abdomen CT Child 25.8% 40.3% 26.8% 7.1%
Abdomen MRI Child / 80.0% 12.9% 7.1%
Abdomen Ultrasound Child / 90.5% 3.1% 6.4%
  1. * n.a., no answer