title: Lack of radiological awareness among physicians working in a tertiary-care cardiological centre.
abstract: BACKGROUND
  Medical irradiation is the most important artificial source of exposure to ionising radiations in Europe and implies biorisks.
  
  
  OBJECTIVE
  To assess the level of radiological awareness in a tertiary-care referral centre of adult-pediatric cardiological excellence.
  
  
  METHODS
  One hundred physicians (31 women, age=41+/-8 years) were polled with a simple, one-page, multiple choice questionnaire. Twenty-five physicians worked in a pediatric, 75 in an adult cardiology centre.
  
  
  RESULTS
  Eighty-nine of the polled physicians wrongly estimated the contribution of nuclear and radiological tests in overall radiation exposure of average US inhabitant as <0.01% (36% of physicians) or <1% (31%) or <10% (22%) (correct answer given by 11% of physicians: >10%). Ninety-five physicians wrongly estimated the risk of fatal cancer associated with a stress myocardial perfusion scintigraphy procedure as "zero" (48%) or "<1 in 10 million"(19%) or "<1 in 1 million" (28%) (correct answer given by 5%: >1 in 10,000 tests). Seventy-one wrongly estimated the dose exposure of a myocardial stress perfusion scintigraphy as equal to one (13%), or one-half (9%), or three times (49%) that of a chest X-ray (correct answer given by 29%: 500 times). The average level of radiological awareness was not correlated to the number of radiological-nuclear exams performed/prescribed per year and to the type of (adult or pediatric) working environment.
  
  
  CONCLUSIONS
  Physicians working in an adult and pediatric cardiological environment of excellence are largely unaware of environmental impact, biorisks and dose exposure of the ionising exams they prescribe and/or perform daily.
authors.affiliation: Universitary Hospital of Pulido Valente, Lisbon, Portugal.
authors.forename: Maria Joao
authors.initials: MJ
authors.lastname: Correia
authors.forename: Arianna
authors.initials: A
authors.lastname: Hellies
authors.forename: Maria Grazia
authors.initials: MG
authors.lastname: Andreassi
authors.forename: Bruno
authors.initials: B
authors.lastname: Ghelarducci
authors.forename: Eugenio
authors.initials: E
authors.lastname: Picano
mesh_terms: D000328:Adult; D003952:Diagnostic Imaging; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D011877:Radionuclide Imaging