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A study on radiation doses and irradiated areas in cerebral embolisation

¹ Clinical Physics Group, St Bartholomew's Hospital, Queen Mary University, University of London, London EC1A 7BE and ² Clinical Physics Group, St Bartholomew's Hospital, Barts and the London NHS Trust, London EC1A 7BE, UK

View larger version (9K): [in a new window]   Figure 1. Patient statistics.

View larger version (15K): [in a new window]   Figure 2. Frequency distribution of maximum entrance skin dose measured by thermoluminescent dosimeters (ESDTLD) for the posteroanterior (PA) and the lateral (LAT) plane.

View larger version (14K): [in a new window]   Figure 3. Frequency distribution of total dose–area product (DAP) for the posteroanterior (PA) and the lateral (LAT) plane.

View larger version (81K): [in a new window]   Figure 4. Isodose distribution in mGy, posteroanterior plane.

View larger version (106K): [in a new window]   Figure 5. Isodose distribution in mGy, lateral plane.

View larger version (8K): [in a new window]   Figure 6. Organ doses for 30 patients. One of the patients received a right eye dose of 0.5 Gy and this value is not shown in the graph but it was included in the calculations. The open circles (o) represent doses with values between 1.5 and 3 box-lengths from the 75th percentile or 25th percentile. The asterisks (*) represent doses with values more than 3 box-lengths from the 75th percentile or 25th percentile.