Abstract:
:In projection radiography, two types of digital imaging systems are currently available, computed radiography (CR) and direct radiography (DR): a difference between them can be stated in terms of dose and image quality. In the Radiology Emergency Department of our hospital, a flat-panel DR equipment (Siemens Axiom Aristos FX) and two CR systems (Kodak CR-850) are employed. In 2006, five standard radiographic examinations (abdomen, chest, lumbar spine, pelvis, skull) were considered: doses delivered to patients in terms of both entrance skin dose (ESD) and effective dose (E) were calculated and compared in order to study the dosimetric discrepancies between CR and DR. Assessment of image quality is undertaken by Consultant Radiologists to ensure that the quality criteria for diagnostic radiographic images of the European guidelines were met. Results showed that both ESD and E in DR are lower than that in CR; all images met the criteria in the European Guidelines for both modalities and were used for reporting by the radiologists. Since the operators are the same and the image quality is comparable in both modalities, this study shows that in the considered examinations, DR can perform better than CR from a dosimetric point of view.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Compagnone G,Pagan L,Baleni MC,Calzolaio FL,Barozzi L,Bergamini Cdoi
10.1093/rpd/ncn013subject
Has Abstractpub_date
2008-01-01 00:00:00pages
135-7issue
1-3eissn
0144-8420issn
1742-3406pii
ncn013journal_volume
129pub_type
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