Proposed DRLs for mammography in Switzerland.

Autor:	Dupont L; Geneva University Hospital, Geneva, Switzerland., Aberle C; Basel University Hospital, Basel, Switzerland., Botsikas D; Geneva University Hospital, Geneva, Switzerland., Ith M; Institute of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland., Lima TVM; Lucerne Cantonal Hospital, Lucerne, Switzerland., Menz R; Basel University Hospital, Basel, Switzerland., Monnin P; Vaud University Hospital Centre, Lausanne, Switzerland., Poletti PA; Geneva University Hospital, Geneva, Switzerland., Presilla S; Lugano Regional Hospital, Lugano, Switzerland., Schegerer A; Hirslanden Clinic, Zurich, Switzerland., Stoica LC; Geneva University Hospital, Geneva, Switzerland., Trueb P; Federal Office of Public Health, Bern, Switzerland., Sans Merce M; Geneva University Hospital, Geneva, Switzerland.
Jazyk:	angličtina
Zdroj:	Journal of radiological protection : official journal of the Society for Radiological Protection [J Radiol Prot] 2024 May 16; Vol. 44 (2). Date of Electronic Publication: 2024 May 16.
DOI:	10.1088/1361-6498/ad37c8
Abstrakt:	The aim of this study is to propose diagnostic reference levels (DRLs) values for mammography in Switzerland. For the data collection, a survey was conducted among a sufficient number of centres, including five University hospitals, several cantonal hospitals, and large private clinics, covering all linguistic regions of Switzerland to be representative of the clinical practice. The data gathered contained the mean glandular dose (MGD), the compressed breast thickness (CBT), the mammography model and the examination parameters for each acquisition. The data collected was sorted into the following categories: 2D or digital breast tomosynthesis (DBT) examination, craniocaudal (CC) or mediolateral oblique (MLO) projection, and eight categories of CBT ranging from 20 mm to 100 mm in 10 mm intervals. A total of 24 762 acquisitions were gathered in 31 centres on 36 mammography units from six manufacturers. The analysis showed that the data reflects the practice in Switzerland. The results revealed that the MGD is larger for DBT than for 2D acquisitions for the same CBT. From 20-30 mm to 90-100 mm of CBT, the 75th percentile of the MGD values obtained increased from 0.81 mGy to 2.55 mGy for 2D CC acquisitions, from 0.83 mGy to 2.96 mGy for 2D MLO acquisitions, from 1.22 mGy to 3.66 mGy for DBT CC acquisitions and from 1.33 mGy to 4.04 mGy for DBT MLO acquisitions. The results of the survey allow us to propose Swiss DRLs for mammography according to the examination type (2D/DBT), projection (CC/MLO) and CBT. The proposed values are very satisfactory in comparison with other studies. (Creative Commons Attribution license.)
Databáze:	MEDLINE
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