Survey of computed tomography techniques and absorbed dose in Italian hospitals: A comparison between two methods to estimate the dose-length product and the effective dose and to verify fulfilment of the diagnostic reference levels

Daniela Origgi, Sabrina Vigorito, Gaetano Villa, Massimo Bellomi, Giampiero Tosi

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this study was the production of the first Italian survey of radiation dose in computed tomography (CT) prior to the widespread adoption of multislice CT, in order to have a reference point to facilitate later investigation of dose exposure changes brought by this new CT modality. The collected dose data were compared with diagnostic reference levels (DRLs). The agreement between experimental dose evaluation and Monte Carlo (MC) simulations was investigated. The survey was carried out in 29 Italian hospitals, covered 48 CT scanners and 232 examinations. The dose-length product (DLP) and effective dose (E) values were estimated based on MC simulations for seven clinical protocols using the CT-Dose program. Statistical analysis showed a significant difference (p

Original languageEnglish
Pages (from-to)227-237
Number of pages11
JournalEuropean Radiology
Volume16
Issue number1
DOIs
Publication statusPublished - Jan 2006

Keywords

  • Computed tomography
  • Diagnostic reference levels
  • Dose-length product
  • Effective dose
  • Patient exposure

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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