BJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
First published online November 26, 2007
British Journal of Radiology (2008) 81, 35-45
© 2008 British Institute of Radiology
doi: 10.1259/bjr/26551424
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 Google Scholar
Google Scholar
Right arrow Articles by Morrish, O W E
Right arrow Articles by Goldstone, K E
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Morrish, O W E
Right arrow Articles by Goldstone, K E

An investigation into patient and staff doses from X-ray angiography during coronary interventional procedures

O W E Morrish, BSc, MSc and K E Goldstone, BSc, MSc, CSci, FIPEM

East Anglian Regional Radiation Protection Service, Box 191, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge CB2 2QQ, UK


Figure 1
View larger version (123K):
[in this window]
[in a new window]

  		Figure 1. The Alderson Rando-Phantom slices 11–23.

 

Figure 2
View larger version (10K):
[in this window]
[in a new window]

  		Figure 2. Diagram showing the naming conventions of projections in relation to the patient's position. Left anterior oblique (LAO), right anterior oblique (RAO), cranial (CR) and caudal (CA) refer to the position of the image intensifier, with 0° being above the patient.

 

Figure 3
View larger version (21K):
[in this window]
[in a new window]

  		Figure 3. Diagram showing the positions of the cardiologist and the nurse. The shown angles orientate the positions for the scattered exposure measurements.

 

Figure 4
View larger version (22K):
[in this window]
[in a new window]

  		Figure 4. Measurements during fluoroscopy at the 210° position (cardiologist's position) with and without lead protection. RAO, right anterior oblique; LAO, left anterior oblique; CA, caudal; CR, cranial.

 

Figure 5
View larger version (18K):
[in this window]
[in a new window]

  		Figure 5. Measurements during fluoroscopy at the 150° position (nurse's position) with and without lead protection. RAO, right anterior oblique; LAO, left anterior oblique; CA, caudal; CR, cranial.

 

Figure 6
View larger version (16K):
[in this window]
[in a new window]

  		Figure 6. Mean effectiveness of lead protection at the 210° position (cardiologist's position). RAO, right anterior oblique; LAO, left anterior oblique; CA, caudal; CR, cranial.

 

Figure 7
View larger version (26K):
[in this window]
[in a new window]

  		Figure 7. Distribution of scattered radiation from digital acquisition on the 45° left anterior oblique (LAO) projection at 72 kVp. The radial axis shows the dose in µGy min–1, whereas the ionization chamber position is indicated on the circumference. The figure shows the patient position from above, and the arrow shows the direction of the primary beam. Data for points not measured at 90°, 180° and 150° at 60 cm have been interpolated.

 

Figure 8
View larger version (30K):
[in this window]
[in a new window]

  		Figure 8. Distribution of scattered radiation from digital acquisition on the 10° right anterior oblique (RAO) projection at 68 kVp. The radial axis shows the dose in µGy min–1, whereas the ionization chamber position is indicated on the circumference. The figure shows the patient position from above, and the arrow shows the direction of the primary beam. Data for points not measured at 90°, 180° and 150° at 60 cm have been interpolated.

 

Figure 9
View larger version (27K):
[in this window]
[in a new window]

  		Figure 9. Distribution of scattered radiation from digital acquisition on the 30° right anterior oblique (RAO) projection at 68 kVp. The radial axis shows the dose in µGy min–1, whereas the ionization chamber position is indicated on the circumference. The figure shows the patient position from above, and the arrow shows the direction of the primary beam. Data for points not measured at 90°, 180° and 150° at 60 cm have been interpolated.

 

Figure 10
View larger version (28K):
[in this window]
[in a new window]

  		Figure 10. Distribution of scattered radiation from digital acquisition on the 30° right anterior oblique (RAO) 25° caudal projection at 69 kVp. The radial axis shows the dose in µGy min–1, whereas the ionization chamber position is indicated on the circumference. The figure shows the patient position from above, and the arrow shows the direction of the primary beam. Data for points not measured at 90°, 180° and 150° at 60 cm have been interpolated.

 

Figure 11
View larger version (26K):
[in this window]
[in a new window]

  		Figure 11. Distribution of scattered radiation from digital acquisition on the 45° left anterior oblique (LAO) 25° cranial projection at 75 kVp. The radial axis shows the dose in µGy min–1, whereas the ionization chamber position is indicated on the circumference. The figure shows the patient position from above, and the arrow shows the direction of the primary beam. Data for points not measured at 90°, 180° and 150° at 60 cm have been interpolated.

 




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
BJR DMFR IMAGING  ALL BIR JOURNALS 
Copyright © 2008 by the British Institute of Radiology.