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RADIATION PROTECTION IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY L14: Radiation exposure in pregnancy IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Introduction ,[object Object],[object Object],[object Object]
Topics ,[object Object],[object Object],[object Object]
Overview / objective ,[object Object]
Part 14: Radiation exposure in pregnancy Topic 1: Introduction to the problem IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Introduction ,[object Object],[object Object],[object Object]
Example of justified use of CT in a pregnant female who was in a motor vehicle accident
Free   blood Kidney ripped off aorta (no contrast in it) Splenic   laceration 3-minute CT exam and taken to the operating room. She and the child survived.
Situation analysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Inadvertent exposure LMP Periods due Psychological issue or uncertainty 14 28 Exposure  period Qn. How sensitive is early conceptus
Prevention of inadvertent exposure in pregnancy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sensitivity of the early conceptus ,[object Object],[object Object],[object Object],[object Object]
Patient definitely or probably pregnant ,[object Object],[object Object],[object Object],[object Object]
Part 14: Radiation exposure in pregnancy Topic 2: Example of dose IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
High dose procedures ,[object Object],[object Object],[object Object],[object Object],[object Object]
Exposure of females of reproductive capacity ,[object Object],[object Object],[object Object],[object Object]
Pre-implant stage (up to 10 days) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Approximate fetal doses from conventional  X Ray examinations ( data from the UK 1998 ) t h o ra ci c s p i n e < 0 . 0 1 < 0 . 0 1 M e an  ( mGy ) M a x i mum ( mGy ) A b d o men 1 . 4 4 . 2 C h es t < 0 . 0 1 < 0 . 0 1 I n t r a v e no u s u r o g r a m o r l um b a r s p i n e 1 . 7 1 0 P e l vi s 1 . 1 4 S k u ll o r
Approximate fetal doses from fluoroscopic and computed tomography procedures  (data from the U.K. 1998)
Cardiac catheterization in pregnancy ,[object Object],[object Object],[object Object]
Part 14: Radiation exposure in pregnancy Topic 3: Fetal radiation risk IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
Fetal Radiation Risk ,[object Object],[object Object],Less Least Most risk
Radiation-Induced Malformations ,[object Object],[object Object],[object Object]
Central Nervous System Effects ,[object Object],[object Object],[object Object]
Heterotopic gray matter (arrows) near the ventricles in a mentally retarded individual occurring as a result of high dose in-utero radiation exposure
Frequency of microcephaly as a function of dose and gestational age occurring as a result of in-utero exposure in atomic bomb survivors (Miller 1976)
Leukemia and Cancer ,[object Object],[object Object]
Leukemia and Cancer ,[object Object],[object Object]
Probability of bearing healthy children as a function of radiation dose
Pre-conception irradiation ,[object Object],[object Object]
Radiation Exposure of Pregnant Workers ,[object Object],[object Object]
Research on Pregnant Patients ,[object Object]
Termination of pregnancy ,[object Object],[object Object],[object Object]
Termination of pregnancy ,[object Object]
Risks in a pregnant population not exposed to medical radiation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object]
Where to Get More Information ,[object Object],[object Object],[object Object]

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L14 Pregnancy

  • 1. RADIATION PROTECTION IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY L14: Radiation exposure in pregnancy IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
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  • 5. Part 14: Radiation exposure in pregnancy Topic 1: Introduction to the problem IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
  • 6.
  • 7. Example of justified use of CT in a pregnant female who was in a motor vehicle accident
  • 8. Free blood Kidney ripped off aorta (no contrast in it) Splenic laceration 3-minute CT exam and taken to the operating room. She and the child survived.
  • 9.
  • 10. Inadvertent exposure LMP Periods due Psychological issue or uncertainty 14 28 Exposure period Qn. How sensitive is early conceptus
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  • 14. Part 14: Radiation exposure in pregnancy Topic 2: Example of dose IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
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  • 18. Approximate fetal doses from conventional X Ray examinations ( data from the UK 1998 ) t h o ra ci c s p i n e < 0 . 0 1 < 0 . 0 1 M e an ( mGy ) M a x i mum ( mGy ) A b d o men 1 . 4 4 . 2 C h es t < 0 . 0 1 < 0 . 0 1 I n t r a v e no u s u r o g r a m o r l um b a r s p i n e 1 . 7 1 0 P e l vi s 1 . 1 4 S k u ll o r
  • 19. Approximate fetal doses from fluoroscopic and computed tomography procedures (data from the U.K. 1998)
  • 20.
  • 21. Part 14: Radiation exposure in pregnancy Topic 3: Fetal radiation risk IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
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  • 25. Heterotopic gray matter (arrows) near the ventricles in a mentally retarded individual occurring as a result of high dose in-utero radiation exposure
  • 26. Frequency of microcephaly as a function of dose and gestational age occurring as a result of in-utero exposure in atomic bomb survivors (Miller 1976)
  • 27.
  • 28.
  • 29. Probability of bearing healthy children as a function of radiation dose
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Editor's Notes

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