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Radiation doses to the legs of radiologists performing interventional procedures: are they a cause for concern?

Department of Clinical Physics & Bioengineering, Health Physics Division, Lower Ground Floor, Divisional Offices (west), Western Infirmary, Glasgow G11 6NT, UK

View larger version (17K): [in a new window]   Figure 1. The mean dose (mSv) to the most exposed leg and hand of radiologists during different types of procedures, at different hospitals. Y, lead protection used N, lead protection not used.

View larger version (8K): [in a new window]   Figure 2. The linear relationship between the dose–area product (DAP) reading per procedure and the dose to the most exposed foot when no lead protection was used (r=0.96).

View larger version (63K): [in a new window]   Figure 3. Plot of scatter air kerma in two planes around a RANDO phantom irradiated in the posteroanterior projection. Figure shows the scatter air kerma rate along the edge of the table, parallel to the patient's side.

View larger version (66K): [in a new window]   Figure 4. Plot of scatter air kerma in two planes around a RANDO phantom irradiated in the posteroanterior projection. Figure shows the scatter air kerma perpendicular to the patient, at the midline of the image intensifier.

View larger version (21K): [in a new window]   Figure 5. The typical areas staff work within, during interventional procedures. Rad, radiologist; Sc, scrubbed nurse or secondary radiologist; R, radiographer; X, radiologist position when performing transjugular intrahepatic portosystemic shunt procedures.

View larger version (71K): [in a new window]   Figure 6. Plot of scatter air kerma around a RANDO phantom irradiated in the right anterior oblique projection.

View larger version (80K): [in a new window]   Figure 7. Plot of scatter air kerma around a RANDO phantom irradiated in the right anterior oblique projection, after the introduction of a mobile lead screen.