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Radiation Protection Dosimetry Advance Access originally published online on February 26, 2008
Radiation Protection Dosimetry 2008 129(1-3):261-264; doi:10.1093/rpd/ncn027
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Criteria to optimise a dynamic flat detector system used for interventional radiology

R. Simon1,2, E. Vano1,3,*, C. Prieto1, J. M. Fernandez1,3, J. M. Ordiales1 and D. Martinez1

1 Medical Physics Service San Carlos University Hospital, 28040 Madrid, Spain
3 Radiology Department Medicine School, Complutense University, 28040 Madrid, Spain

* Corresponding author: eliseov{at}med.ucm.es

An analysis of the relationship between image quality and incident air kerma has been carried out for a dynamic flat detector X-ray system used for interventional radiology. A phantom of polymethyl methacrylate (PMMA) to simulate patients and two different image test objects, Leeds TOR 18FG and NEMA XR 21, were used to evaluate the quality of the obtained images. Measurements were made simulating clinical configuration with different PMMA thicknesses (16, 20, 24 and 28 cm), available fields of view of 22, 31, 42 and 48 cm (diagonal dimension), in the three default fluoroscopy modes and in one of the most used digital subtraction angiography image acquisition modes. The obtained results are being used to help in the optimisation of clinical procedures.

2 Present address: Clinical University Hospital, 47005 Valladolid, Spain


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E. Vano, C. Ubeda, J. M. Fernandez, R. M. Sanchez, and C. Prieto
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[Abstract] [Full Text] [PDF]


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