| YU Peng,WEI Ke-dao,LI Tian_chang.Measurement and evaluation of radiation field in invasive diagnosis and treatment area[J].Chinese Journal of Radiological Medicine and Protection,2005,25(3):270-271 |
| Measurement and evaluation of radiation field in invasive diagnosis and treatment area |
| Received:March 10, 2005 |
| DOI： |
| KeyWords:Angiography Interventional radiology Medical exposure Radiation protection Evaluation studies |
| FundProject:首都医学发展科研基金资助项目(20023026) |
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| Abstract:: |
| Objective To measure and evaluate the distribution feature of radiation dose at the conventional puncture plane in invasive diagnosis and treatment area, and depict the corresponding isodose curve. Methods A platform was built at the conventinal puncture plane in invasive diagnosis and treatment area.By taking the center of X_ray source as the measurement center coosing the conventinal antero_posterior and lateral basic postures and choosing one measurement site for every 0.1 m in 8 directions,measurements were carried out for three times at every measurement point and the arithmetic means,were calculated,corrected and converted to mGy/h. Results We successfully measured doses of X_ray radiation in invasive diagnosis and treatment area,and depicted the distribution curve. Conclusion Generally, the left_superior radiation field of the patient is the strongest,where the physician interns always stands to install a pacemaker.Therefore,the latter should be alerted.The practising physicians and interns often stand there to watch the performance.They should avoid standing there.Nurses always stand in the left_inferior field of the patient doing fluid infusion and adding drugs into the fluid.They should be aware of the danger.Electrophysiology technicians often stand on the left_foot side of the patient,although the radiation dose in not large,they should take care too.Operators always stand on the right side of the patient.They should be protected. |
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