Radiation dose to medical staff in interventional radiology
Oonsiri, S.; Jumpangern, C.; Sanghangthum, T.; Krisanachinda, A.; Suriyapee, S.
Journal of the Medical Association of Thailand 90(4): 823-828
2007
ISSN/ISBN: 0125-2208 PMID: 17487142 Document Number: 2914
Objective: The purposes of the present study were to determine the dose to medical staff in interventional radiology at different locations on the body measured by thermoluminescent dosimeter (TLD) and to relate the medical staff dose to patient dose measured by the dose-area product (DAP) meter.Material and Method. The present study covered 42 patients in three interventional radiology procedures with three x-ray machines. Thermoluminescent dosimeters were stuck at eight positions on the radiologist skin during the procedure. In addition, direct reading from the DAP meter placed inf ront of the collimator of the x-ray tube, was recorded to estimate the patient radiation dose.Results: The surface dose to the primary radiologist showed maximum value at the left forearm of 407 mu Gy. The ratios between the maximum interventional radiologist surface dose and patient dose are 12.88 mu Gy per 10 Gycm(2) for transarterial oily chemoembolization TOCE (Siemens Polystar), 22.58 mu Gy per 10 Gycm(2) for transarterial oily chemoembolization TOCE (Siemens Neurostar), 148.29 mu Gy per 10 Gycm(2) for percutaneous transhepatic biliary drainage PTBD (Siemens Polystar) and 100. 46 mu Gy per 10 Gycm(2) for endoscopic retrograde cholangiopancreatography ERCP (GE Advantx).Conclusion: The interventional radiologist surface dose can be estimated from the mentioned ratio if the patient dose is measured. This will help the radiologists to avoid receiving an excess dose during their work.
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