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- Title
A SURVEY OF PATIENT DOSE AND CLINICAL FACTORS IN A FULL-FIELD DIGITAL MAMMOGRAPHY SYSTEM.
- Authors
Morán, P.; Chevalier, M.; Ten, J. I.; Soto, J. M. Fernández; Vañó, E.
- Abstract
In this work, we analyse the dose to 5034 patients (20137 images) who underwent mammographic examinations with a full- field digital mammography (FFDM) system over a 2-y period. The information relevant to this study has been extracted from the image Digital Imaging and Communications in Medicine (DICOM) headers. Entrance surface air-kerma (ESAK) without backscatter and average glandular dose (AGD) were estimated following the methodology proposed in the European Protocol on Dosimetry in Mammography. Mean values for patient age and compressed breast thickness were 56±11 y and 52±13 mm, respectively. The mean ESAIC value was 8.1 mGy and the mean AGD was 1.9 mGy. In addition, the dose values from both FFDM and screening-film mammographic (SFM) examinations were compared. The third quartile (TQ) of the ESAK values delivered by the FFDM system was 33% lower and 32% higher than the TQ for SFM with slow and fast screen/film receptors. Differences between dose values for cranio-caudal (CC) and medio-lateral oblique (MLO) images (about 27% for SFM) decreased to 11% for FFDM.
- Subjects
MAMMOGRAMS; CANCER in women; DRUG dosage; STUDY &; teaching of medicine; DISEASES in women; PATIENTS
- Publication
Radiation Protection Dosimetry, 2005, Vol 114, Issue 1-3, p375
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/nch514