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Radiation Dose to the Fetus from Body MDCT During Early Gestation

Lynne M. Hurwitz1, Terry Yoshizumi1,2, Robert E. Reiman1,2, Philip C. Goodman1, Erik K. Paulson1, Donald P. Frush1, Greta Toncheva2, Giao Nguyen2 and Lottie Barnes2

1 Department of Radiology, Duke University Medical Center, DUMC 3808, Durham, NC 27710.
2 Radiation Safety Division, Duke University Health System, Durham, NC 27710.


Figure 1
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  		Fig. 1A —Anthropomorphic phantom of a woman during early pregnancy. Drawing shows detector representing fetal location in anthropomorphic phantom of woman during early pregnancy. Points A and B are maximal most anterior and cranial locations at 3 months and points C, D, and E are fetal location at 0 months. Reprinted with permission from Vladimir Varchena, Senior Engineer, CIRS, Inc.

 

Figure 2
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  		Fig. 1B —Anthropomorphic phantom of a woman during early pregnancy. Bar graphs show absorbed fetal radiation dose at 0 and 3 months' gestation from 16-MDCT of chest, pulmonary embolus protocol (B); of abdomen and pelvis, renal calculus protocol (C); and of abdomen and pelvis, appendix protocol (D).

 

Figure 3
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  		Fig. 1C —Anthropomorphic phantom of a woman during early pregnancy. Bar graphs show absorbed fetal radiation dose at 0 and 3 months' gestation from 16-MDCT of chest, pulmonary embolus protocol (B); of abdomen and pelvis, renal calculus protocol (C); and of abdomen and pelvis, appendix protocol (D).

 

Figure 4
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  		Fig. 1D —Anthropomorphic phantom of a woman during early pregnancy. Bar graphs show absorbed fetal radiation dose at 0 and 3 months' gestation from 16-MDCT of chest, pulmonary embolus protocol (B); of abdomen and pelvis, renal calculus protocol (C); and of abdomen and pelvis, appendix protocol (D).

 

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