Effective doses for coronary angiography
- 1 May 1996
- journal article
- Published by Oxford University Press (OUP) in The British Journal of Radiology
- Vol. 69 (821), 426-431
- https://doi.org/10.1259/0007-1285-69-821-426
Abstract
A detailed study of dose data has been made for 100 coronary angiography examinations performed on a digital X-ray unit. Dose-area product (DAP) data have been analysed in terms of fluoroscopy and radiography for different projections. Projections patterns were similar for all cardiologists studied and the contribution to DAP from fluoroscopy was 32%. Data for 10 patients, selected because the percentage contributions to DAP from fluoroscopy and radiography were similar to the mean for the group, were used to derive conversion factors from DAP to effective dose. The mean DAP was 14 Gy cm2 and the effective dose 3.1 mSv. Conversion factors, based on the same protocol, were derived for a range of tube potentials and filtrations for use in estimation of effective doses with other units.Keywords
This publication has 7 references indexed in Scilit:
- A phantom based method for deriving typical patient doses from measurements of dose–area product on populations of patientsThe British Journal of Radiology, 1995
- Measurement of patient entrance surface dose rates for fluoroscopic X-ray unitsPhysics in Medicine & Biology, 1995
- Data Analysis on Patient Exposures in Cardiac AngiographyRadiation Protection Dosimetry, 1995
- A study of the relationship between patient dose and size in paediatric radiologyThe British Journal of Radiology, 1994
- Estimation of effective dose from dose–area product measurements for barium meals and barium enemasThe British Journal of Radiology, 1994
- Coronary angiography: an analysis of radiographic practice in the UKThe British Journal of Radiology, 1993
- The Reference Man in diagnostic radiology dosimetryThe British Journal of Radiology, 1992