Adult doses in plain digital X-ray examination of the abdomen at the imaging department of a general hospital in Malta.

Abstract

Objectives The objectives of the study were to measure the mean kerma area product (KAP) values during adult abdomen x-ray examinations using digital radiography at a local general hospital in Malta, calculate the corresponding entrance surface dose (ESD), compare values with those found in the literature and suggest local diagnostic reference levels (LDRL) for the hospital room concerned. Research Design KAP and ESD values from two local rooms in the hospital concerned were surveyed. KAP data was collected from the DICOM header of anonymized PACS images. ESD values were calculated from the KAP values Results The main Results from the Study were: a) There is good correlation between KAP and ESD and patient weight and thickness. The mean doses for ESD values in room PSX 2 was 2.3 mGy and those for Casualty was 1.0 mGy, and KAP values were 11.5 dGycm2 for the room PSX2 and 5.6 dGycm2 . b) The mean doses for the AP adult abdomen were lower for room PSX2 than those found in the European literature and those for Casualty are well below those found in room PSX 2. Conclusions It is hoped that this study gives clear indications for further possible dose optimization measures and improved dose auditing at the facility under study.