[1] Univ Groningen, Dept Radiol, Univ Med Ctr Groningen, Groningen, Netherlands
[2] Bronovo Hosp, Dept Cardiol, The Hague, Netherlands
[3] Bronovo Hosp, Dept Radiol, The Hague, Netherlands
[4] Univ Groningen, Dept Epidemiol, Univ Med Ctr Groningen, Groningen, Netherlands