Discusses cancer risk from low-dose radiation from medical imaging and how this applies to young or pregnant patients. Describes MRI and ultrasound applications for pregnant patients to provide high quality diagnostic information without radiation.

1. Maternal Imaging in Pregnancy Lloyd Stambaugh, M.D. Radia

6. Typical Radiation Doses 12 years 40-50 mSv Multiphase CT 150-200 days per view 1.5-2 mSv per view L-spine xrays 10 days 0.1 mSv Hand x-rays 3 months 0.7 mSv Mammogram 20 days 0.2 mSv Chest x-ray 3 years 10 mSv Spine CT 3 years 10-15 mSv Abd/pelvis CT single Background equiv Eff rad dose Procedure

7. Radiation and the Fetus

18. Contrast Agents

31. Normal appendix

32. Normal Appendix

33. Normal Appendix

34. Copyright ©Radiological Society of North America, 2006 Appendiceal phlegmon in 29-year-old pregnant woman

35. Copyright ©Radiological Society of North America, 2007 Patel, S. J. et al. Radiographics 2007;27:1705-1722 Acute appendicitis in a pregnant woman with right lower quadrant pain

36. Copyright ©Radiological Society of North America, 2007 Acute appendicitis in a nonpregnant patient

37. Copyright ©Radiological Society of North America, 2007 Singh, A. et al. Radiographics 2007;27:1419-1431 Acute appendicitis in a 21-year-old pregnant patient

38. Copyright ©Radiological Society of North America, 2006 Pedrosa, I. et al. Radiology 2006;238:891-899 Appendiceal phlegmon in pregnant woman

39. Copyright ©Radiological Society of North America, 2007 Singh, A. et al. Radiographics 2007;27:1419-1431 Perforating appendicitis in a 16-year-old girl

40. Copyright ©Radiological Society of North America, 2006 Pedrosa, I. et al. Radiology 2006;238:891-899 Mild acute appendicitis in a 27-year-old pregnant woman (gestational age, 13 weeks)

41. Copyright ©Radiological Society of North America, 2006 Pedrosa, I. et al. Radiology 2006;238:891-899 MR images in 33-year-old pregnant woman (gestational age, 20 weeks) with acute appendicitis

42. Copyright ©Radiological Society of North America, 2007 Acute appendicitis in a 20-year-old pregnant patient

43. Copyright ©Radiological Society of North America, 2007 Singh, A. et al. Radiographics 2007;27:1419-1431 Gangrenous appendicitis in a pregnant patient

45. 3T MR—Normal renal collecting systems

48. NF Mild hyronephrosis of pregnancy

49. Mild hydronephrosis of pregnancy

50. Distal left ureter obstruction

51. Distal right ureter obstruction

52. 3T MR—partial obstructing mid L ureter stone

53. 3T MR—distal R ureter susceptibility artifact… Not ureter stone

54. 3T MR—renal pelvis stone

55. Copyright ©Radiological Society of North America, 2007 Singh, A. et al. Radiographics 2007;27:1419-1431 Adnexal torsion

56. Ovarian torsion

58. Ectopic Pregnancy

59. Ectopic Pregnancy

60. Ectopic Pregnancy

61. Ectopic Pregnancy

62. Abdominal Ectopic

63. Cervical Ectopic

64. Pregnancy in C-sect scar

65. Ectopic in Rudimentary Horn

66. Endometrioma