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Congress: ECR25
Poster Number: C-16314
Type: Poster: EPOS Radiologist (scientific)
Authorblock: D. Penka1, N. Egenrieder1, S. Tschauner2, A. P. Wunderlich1, M. J. Beer1; 1Ulm/DE, 2Graz/AT
Disclosures:
Dominik Penka: Nothing to disclose
Nadine Egenrieder: Nothing to disclose
Sebastian Tschauner: Nothing to disclose
Arthur Peter Wunderlich: Nothing to disclose
Meinrad Johannes Beer: Nothing to disclose
Keywords: Thorax, Conventional radiography, Digital radiography, Image manipulation / Reconstruction, Computer Applications-General, Radiation safety, Quality assurance
Purpose As one of the most common radiological examination techniques, chest X-rays (CXR) are of great relevance in diagnostic radiology. The European Commission prescribes minimum diagnostic criteria for these images, which also describe the structures to be imaged. In order to avoid exposing too much patient tissue to electromagnetic radiation, the X-rays are collimated in everyday clinical practice so that they only hit as small an area of the patient as possible. This collimation is carried out manually via a projected...
Read more Methods and materials For this retrospective study, conventional chest radiographs of 500 adult patients from everyday clinical practice from the months of April and May 2023 were analyzed, 250 of which were taken in the upright position and 250 in the supine position at the University Hospital of Ulm (105 women and 145 men in the standing position, 102 women and 148 men in the supine position). The average age was 64 years for the images in the upright position (women and men...
Read more Results On average, the images were 51% overexposed, with an average tissue overexposure of 46%.  Notably, there was larger overexposure for women in the supine position at 63%, compared to men at 43% (p < 0.001). In the upright position, there was a smaller difference with 56% for women and 48% for men. Relevant results are summarized in a table.In the supine position (figure overall overexposure in the supine position): 62% of supine images in women showed overexposure of at least...
Read more Conclusion The high number of overexposed images indicates significant potential for dose reducing radiation doses for patients. In women, there is a particular room for improvement in collimation, particularly in the lateral and caudal regions. Since parts of the mammary glands, which are considered to be radiation-sensitive tissue, are often located in the lateral overexposure areas, this is of particular relevance. In the caudal areas, the stomach and colon are located as radiation-sensitive organs.Effects of scattered radiation, resulting from overexposure, could...
Read more References Tschauner S, Marterer R, Gübitz M, Kalmar PI, Talakic E, Weissensteiner S, Sorantin E. European Guidelines for AP/PA chest X-rays: routinely satisfiable in a paediatric radiology division? Eur Radiol. 2016 Feb;26(2):495-505. doi: 10.1007/s00330-015-3836-7. Epub 2015 May 24. PMID: 26002133.
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