BJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
First published online July 19, 2006
British Journal of Radiology (2006) 79, 818-827
© 2006 British Institute of Radiology
doi: 10.1259/bjr/16416346
This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bradley, B
Right arrow Articles by Osei, E K
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bradley, B
Right arrow Articles by Osei, E K

Normalized data for the estimation of fetal radiation dose from radiotherapy of the breast

B Bradley, BSc1, A Fleck, BSc, MSc2 and E K Osei, BSc, MSc, PhD2,3

1 Department of Systems Design Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, 2 Department of Medical Physics, Grand River Regional Cancer Center, 835 King Street West, Kitchener, Ontario, 3 Department of Physics, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada


Figure 1
View larger version (100K):

[in a new window]
  		Figure 1. The experimental setup for a typical two-field tangential breast treatment. The Rando phantom is placed in a supine position on the treatment couch and setup as per departmental protocol, and was "treated" with the same set-up for each treatment plan.

 

Figure 2
View larger version (61K):

[in a new window]
  		Figure 2. The films and Metal-oxide-semiconductor field-effect transistors (MOSFETs) placement within the phantom showing the positioning of the films and MOSFETs. MOSFETs were located along a central axis within the fetal region. When measurements are being taken with film, the MOSFETs are removed and likewise, when measurements are being taken with the MOSFETs for comparison, the films are removed.

 

Figure 3
View larger version (59K):

[in a new window]
  		Figure 3. Region of interest representing a fetus at a gestational age of 20-weeks post-conception and at a depth of 8 cm from the abdominal surface of the maternal abdomen.

 

Figure 4
View larger version (22K):

[in a new window]
  		Figure 4. Normalized mean fetal dose, as a percentage of prescribed dose(PD), for a typical two-field tangential beam plan using multi-segment static MLC for 6 MV photon beam as a function of fetal depth within the maternal abdomen. Data are presented for various gestational ages (GA).

 

Figure 5
View larger version (24K):

[in a new window]
  		Figure 5. Normalized mean fetal dose, as a percentage of prescribed dose(PD), for a typical two-field tangential beam plan as a function of fetal depth within the maternal abdomen. Data are presented for various treatment plans (sMLC, 15°, 30°, 45° and 60° wedged plans) and for 6 MV and 15 MV photon energies. The gestational age is 15 weeks post-conception.

 




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
BJR DMFR IMAGING  ALL BIR JOURNALS 
Copyright © 2006 by the British Institute of Radiology.