Radiation Risk to Fetus

Ranking (highest risk → lowest risk)
Relative riskProcedure12345678
High18F-FDG PET/CT171*3211676320
Bone scanning with SPECT/CT of lumbar spine37131*351879142
99mTc-sestamibi myocardial perfusion scan1849102*312112135
MediumGated heart pool scan293485*733792
Bone scan19388194*2641
LowRenal perfusion scan57232130105*4714
Ventilation and perfusion lung scan101246123793*81
99mTc thyroid scan1497541968127*
  • * Correct ranking for each procedure, which was also correctly identified by most participants.