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外文期刊>Radiation Protection Dosimetry
>AN APPROACH FOR RADPID ESTABILISHMENT OF PATIEANT EFFECTIVE DOSE DURING RADIOLOGY AND RESULTS FOR TWO LARGE UNIVERSITY HOSPITALS
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AN APPROACH FOR RADPID ESTABILISHMENT OF PATIEANT EFFECTIVE DOSE DURING RADIOLOGY AND RESULTS FOR TWO LARGE UNIVERSITY HOSPITALS
Patient dosimetry and assessment of effective dose was implemented under the condition that measurements invovle commonly available instrumentation. Four categories of examination were distinguished: radiographs with manual techniques, radiogrraphs with autoamtic expsorue control (AEC), examinations involving fluoroscopy, and couputed tomography (CT). For projection radiography the dose-area product (DAP) and for CT the computed tomography dose index wee measrued. Databases of conversion factors were consulted for the calculation of effective dose. Effective doses varied from less than 0.001 to over 100 mSv. Only 5-7/100 of the total examinations consist of CT scans, the contribution of CT to the collective effective dose for the patient population, however, was 40-50/100. Whereas simple radiogrpahs constitute almost 84-89/100 of the number of examinations the contribution to the collective dose was only 2-11/100.
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